2005 Annual Report - Instituto de Telecomunicações

Transcription

INSTITUTO DE
TELECOMUNICAÇÕES
ANNUAL REPORT
2005
2
Table of Contents
1.
2.
INTRODUCTION..................................................................................... 7
1.1
History .......................................................................................... 7
1.2
Management .................................................................................. 8
1.3
Highligths of 2005 ........................................................................... 9
KEY IT INDICATORS ............................................................................. 15
2.1
Human Resources ......................................................................... 15
2.2
Projects ....................................................................................... 16
2.3
Publications .................................................................................. 17
3.
FINANCIAL OUTLINE ............................................................................ 19
4.
RESEARCH AREAS................................................................................ 21
4.1
Wireless Communications ............................................................... 21
4.1.1
Area Coordinators ................................................................... 21
4.1.2
Human Resources ................................................................... 21
4.1.3
Summary of Research Achivements........................................... 28
4.1.4
Running Projects .................................................................... 36
4.1.5
Running and Concluded Theses................................................. 55
4.1.6
Publications ........................................................................... 65
4.1.7
Other Achievements................................................................ 79
4.1.8
Other Contributions................................................................. 80
4.2
Optical Communications ................................................................. 85
4.2.1
Coordinators .......................................................................... 85
4.2.2
Human Resources ................................................................... 85
4.2.3
Summary of Research Achievements ......................................... 89
4.2.4
Running Projects .................................................................... 99
4.2.5
Running and Concluded Theses................................................110
4.2.6
Publications ..........................................................................116
4.2.7
Other Achievements...............................................................127
4.2.8
Other Contributions................................................................128
4.3
Networks and Multimedia ..............................................................131
4.3.1
Coordinators .........................................................................131
4.3.2
Human Resources ..................................................................131
4.3.3
Summary of Research Achievements ........................................138
iii
4.3.4
Running Projects ...................................................................151
4.3.5
4.3.6
Publications ..........................................................................178
4.3.7
4.3.8
4.4
Basic Sciences and Enabling Technologies........................................203
4.4.1
Coordinators .........................................................................203
4.4.2
Human Resources ..................................................................203
4.4.3
Summary of Research Achievements ........................................208
4.4.4
Running Projects ...................................................................216
4.4.5
4.4.6
Publications ..........................................................................243
4.4.7
4.4.8
iv
List of Tables
Table 1 - Foreseen and achieved scientific output in 2005. ............................... 11
Table 2 - Current it human resources ............................................................ 15
Table 3 – Number of active projects in 2005, according to funding source .......... 17
Table 4 – Number of published works in 2005................................................. 17
Table 5 – Total operational income in 2005 .................................................... 19
Table 6 – List of major income sources during 2005 ........................................ 19
Table 7 – List of major costs in 2005 ............................................................. 20
Table 8 – Main asset changes in 2005 ........................................................... 20
Table 9 – Overview of human resources in the Wireless Communication Area...... 21
Table 10 – Permanent collaborators working in the Wireless Communications Area
......................................................................................................... 24
Table 11 – Non-permanent collaborators working in the Wireless Communications
Area .................................................................................................. 27
Table 12 – Number of active projects in the Wireless Communications Area in 2005
......................................................................................................... 36
Table 13 – List of Final Year Projects running in the Wireless Communications Area
during 2005 ........................................................................................ 59
Table 14 – List of MSc Theses running in the Wireless Communications Area during
2005.................................................................................................. 62
Table 15 – List of PhD Theses running in the Wireless Communications Area during
2005.................................................................................................. 64
Table 16 – Overview of human resources in the Optical Communications Area .... 85
Table 17 – Permanent Collaborators working in the Optical Communications Area 86
Table 18 – Non-permanent Collaborators working in the Optical Communications
Area .................................................................................................. 88
Table 19 - Number of active projects in the Optical Communications Area in 2005 99
Table 20 - List of Final Year Projects running in the Optical Communications Area
during 2005 .......................................................................................112
Table 21 - List of MSc Theses running in the Optical Communications Area during
2005.................................................................................................114
Table 22 - List of PhD Theses running in the Optical Communications Area during
2005.................................................................................................115
v
Table 23 – Overview of human resources in Networks and Multimedia Area .......131
Table 24 – Permanent Collaborators working in the Networks and Multimedia Area
........................................................................................................133
Table 25 – Non-permanent Collaborators working in the Neteworks and Multimedia
Area .................................................................................................137
Table 26 – Number of active projects in the Networks and Multimedia Area during
2005.................................................................................................151
Table 27 – List of Final Year Projects running in the Networks and Multimedia Area
During 2005.......................................................................................171
Table 28 - List of MSc. Theses running in the Networks and Multimedia Area During
2005.................................................................................................174
Table 29 - List of PhD Theses running in the Networks and Multimedia Area During
2005.................................................................................................177
Table 30 – Overview of the human resources in the Basic Sciences ans Enabling
Technologies Area...............................................................................203
Table 31 – Permanent Collaborators working in the Basic Sciences and Enabling
Table 32 – Non-permanent Collaborators working in the Basic Sciences and
Enabling Technologies Area ..................................................................207
Table 33 – Number of active projects running in the Basic Sciences and Enabling
Table 34 – List of Final Year Projects running in the Basic Sciences and Enabling
Technologies Area during 2005 .............................................................236
Table 35 – List of MSc Theses running in the Basic Sciences and Enabling
Table 36 – List of PhD Theses running in the Basic Sciences and Enabling
vi
ANNUAL REPORT 2005 - INTRODUCTION
1. INTRODUCTION
1.1 History
“Instituto de Telecomunicações” (it) is a private, not-for-profit organisation, an
association of five institutions with experience and traditions in research and
development in the field of Telecommunications:
• “Instituto Superior Técnico” (IST);
• “Universidade de Aveiro” (UA);
• “Faculdade de Ciências e Tecnologia da Universidade de Coimbra” (FCTUC);
• "Portugal Telecom Inovação", (PTIn)
• Siemens SA.
it is organised around three sites: one in Aveiro, in the University Campus, another
in Coimbra, in Pole II of the University of Coimbra and the third one in Lisbon, in
Intituto Superior Técnico. In addition there is an external laboratory in Covilhã, in
the University of Beira Interior, and a delegation in Leiria, in the “Escola Superior
de Tecnologia e Gestão” of the Leiria Polytechnic.
Setting up of it was the result of a 1.5 billion escudos (about 7.5 million Euros)
grant from Programme CIÊNCIA, through three contracts signed in 1991. This
investment enabled new infrastructures to be built and research laboratories to be
equipped at each site.
Installation was concluded in Aveiro in 1993 and in Lisbon and Coimbra in 1994.
Since 1993 it activities proceed regularly. Key developments in 2005 are sketched
below. Details are included in the sections dealing with each of the research areas.
it statutes were first approved in 1992, modified in 1997 and modified again in
2003. New site statutes deriving from it statutes were approved and implemented
in 2005
7
1.2 Management
it is managed by a Board of Directors, elected by the General Assembly, and by
Site Management Boards, which include the site members of the Board of Directors.
Site Management Boards enjoy ample freedom to deal with current affairs and
usually meet weekly. The Board of Directors meets at least once a month.
it scientific activities are overseen by the Scientific Board, which includes all it
researchers holding a Ph.D degree. The Scientific Board meets in Plenary or in
Committees,
both
permanent
and
temporary.
There
are
two
permanent
committees: the Science and Technology Committee and the Research Group
Coordination Committee.
it Work Plan and the Annual Report are discussed with the Advisory Committee,
formed by three independent experts in the field of telecommunications (Dr. Roland
Huber, Prof. John O’Reilly and Prof. Martin Tomlinson) acting in a personal capacity,
and together with the Accounts (after legal certification) are subsequently
submitted to the General Assembly for approval.
The General Assembly met formally twice. The first meeting was held on March 29,
in the Meeting Room of the Coimbra site, to discuss and aprove the 2004 Annual
Report and Accounts. The second meeting took place on December 20, in the
Meeting Room of the Aveiro site, to aprove the Work Plan and Budget for 2006.
The Research Group Coordination Committee also met twice during 2005. On the
first meeting, held on March 15, at Palace of St. Marcos, the Draft Proposal of the
2004 Annual Report, was discussed and received a favourable opinion. On the
second meeting, held on December 5, at Palace of St. Marcos the Work Plan and
Budget for 2006, was discussed and received a favourable opinion.
The Board of Directors met once a month.
During 2005, due to commitments of the two of the members of the Advisory
Committee who acted as evaluators for Fundação para a CIência e a Tecnologia,
and an unusual bureaucratic load, referred to in more detail below, there was no
meeting with the Advisory Committee.
8
1.3 Highligths of 2005
In the introduction to IT Workplan and Budget for 2005 we stated that “Even if
there are still a number of issues which need to be solved, we have reasons to
believe that the year 2004 was a turning point for the Portuguese R&D, particularly
in the fields of information technologies and telecommunications, and that during
2005 the scene will improve substantially”.
This forecast was essentially correct and during 2005 we experienced a decisive
improvement in the general conditions:
•
Renegotiation of the activities of the Associate Laboratory contract was
completed and funding came in last days of 2004 and again in May 2005,
enabling a much needed stimulation of our activities. In spite of the fact that
contractual amounts are well behind schedule the treasury felt no constrains
during 2005.
•
Contracts with new post-doctoral researchers were pursued (4 additional
contracts) even if contractual obligation appears to be almost impossible to
achieve due to the lack of suitable candidates, both in Portugal and Europe.
•
Proposals for laboratory re-equipament, submitted in 2002, were finally
evaluated and 8 contracts were signed for a total amount of 2.066 M€, of
which 1.855 M€ from FCT. First payments were made in November and
acquisitions started in December. It is expected that during 2006 most IT
laboratories, with a special mention to optical and radio communications,
will be significantly upgraded.
•
Project proposals submitted in 2004 to FCT, were evaluated and as a result
22 new projects, of which in all but 5 it is the prime contractor were funded.
•
As a result of the 4th call for proposals of the IST programme, it secured 12
new (or continuing) participations, including 4 Networks of Excellence (EuroNGI, ISIS, ePhoton I and Cruise), 1 Integrated Project (Daidalos II) and 6
Strategic Targeted Projects (Oracle, WIP, Aroma, C-Mobile, Unite and Suite)
of which 1 (Suite) as a coordinator. The large number of and the shear size
of some new projects, plus the continuing ones, ensure that IT level of
activity in 2006 should reach a new peak.
9
•
During 2005, it submitted two proposals for Centers of Excellence: one in
Telecommunications, with the University of Aveiro and Siemens SA and
another in Digital TV, with Inesc Porto, Jazztell (now AR Telecom),
Novabase, SUN and SIC. The last proposal was approved with the condition
that either it or INESC Porto should be the prime contractor instead of
Jazztell.
The
first
proposal
was
rejected
but
there
was
a
strong
recommendation from the evaluators that it should be merged with another
proposal in the same domain, put forward by PT Inovação and InovaRia.
Following a year (2004) where there was a very substantial increase in the number
of scholarships granted by FCT, the number of scholarships granted in 2005 was
substantially lower, barring many candidates from a scholarship. This very
significant change in acceptance criteria should be reduced in order to ensure a
steadier flow of candidates with comparable qualifications.
During 2005 72 nationally funded, 25 internationally funded and 11 internally
funded projects were active, as shown in section 2.2. As in previous years
involvement of it researchers particularly from the Lisbon site in European
Commission funded projects were carried out through it associates due to current
rules of participation.
To reflect it 2005 activity some tangible objectives were defined in the Work
Programme and Budget for 2005.
Graduate and post-graduate
Foreseen
Achieved
Final Year Projects Reports
60
69
MSc Thesis
27
35
PhD Thesis
17
15
activities:
10
Publications:
Foreseen
Achieved
Books and Book Chapters
15
22
Papers in Journals
90
95
Papers in Conference Proceedings
300
348
Table 1 - Foreseen and achieved scientific output in 2005.
It co-authored 9 patent applications in 2005, 8 of which as the result of the
cooperation with Siemens SA:
•
Marek Hajduczenia; Henrique Silva; Paulo Monteiro; “Extended GATE
MPCPDU and extended REPORT MPCPDU for Ethernet Passive Optical
Network”, European patent application nº 05024740.2, November 2005.
•
Daniel Fonseca; Adolfo Cartaxo; Paulo Monteiro; “Enhanced electrical
dispersion method for optical transmission systems”; European patent
application nº 05014381.7, July 2005.
•
Marek Hajduczenia; Henrique Silva; Paulo Monteiro; “Cycle Polling Protocol
for TDMA based EPON access networks (v.1.0) ”, European patent
application nº 05026647.7, December 2005.
•
Marek Hajduczenia; Nuno Garcia, Henrique Silva; Mário Freire; Paulo
Monteiro; “Real Time Evaluation of Self-Similarity Degree through Hurst
Parameter Estimation using modified Embedded Branching Process (mEBP)
”, European patent application nº 05023580.3, October 2005.
•
Tiago Silveira; António Teixeira; Paulo Monteiro; “Optical Vestigial Sideband
converter Based an a SOA”. European patent application nº 05022460.9,
October 2005.
•
Daniel Fonseca; Adolfo Cartaxo; Paulo Monteiro; “Adaptive optical single
sideband filter based on a phase modular”; European patent application nº
05001145.1, Jannuary 2005.
11
•
Nuno Garcia; José Miguel Ramalho Ribeiro dos Santos; Mário Freire; Paulo
Monteiro;
“Architecture for Optical Burst Switched Networks: Common
Control Channel OBS-C³-OBS”; European patent application nº 04031049.2;
December 2004.
•
Nuno Garcia; Marek Hajduczenia; Mário Freire; Henrique Silva; Paulo
Monteiro; “IP Packet Aggregator and Converter (v4/6 to v6/Future)
Algorithm and/or Machine Concept-IP PAC” file invention disclosure as
European patent, 2005.
•
Tiago Silveira; Ana Ferreira; António Teixeira; Rui Ribeiro; Paulo Monteiro;
“Optical Vestigial Sideband Modulator with a differential filter”, file invention
disclosure as European patent, 2005.
•
António Abreu, “Carregador de Bateria de implantes cardíacos”, Portuguese
patent application nº 103374
It hosted the following national and international events:
•
Conftele’2005, in Tomar, from April 6 - 8, with about 200 participants;
•
Encontro Ibérico de Electromagnetismo Computacional, in Seia, from
September 7 – 9, with about 40 participants
•
3rd Symposium on Enabling Optical Networks, in Aveiro, June 27, with about
60 participants
•
EPhoton-One Winter School, in Aveiro, from February 23 - 25, with about 30
participants
•
IP Móvel e Redes Wimax. Aplicações da Teoria da Informação, in Covilhã,
October 4, with about 40 participants
and the following invited talks:
•
Multiple Description Image and Vídeo Coding for Noisy Channels, in
Coimbra, September 30, presented by Prof. Manuela Pereira;
•
Smart Antennas for Mobile Communications, in Coimbra, July 21, presented
by Prof. João Gil;
12
•
Ethernet Passive Optical Networks: Current Developments, in Coimbra, May
11, presented by Marek Hajduczenia;
•
Electromagnetic Scattering from Foliage and Vegetation, in Coimbra, April
13, presented by Prof. Rafael Caldeirinha;
•
Optical Access Networks, in Coimbra, March 9, presented by Prof. Henrique
Silva;
•
Palestras sobre Redes Ópticas, in Lisboa, September 12 and 14, presented
by Prof. Hélio Waldman;
During 2005 it researchers were awarded the following prizes:
•
Vieira, P. “Aumento da capacidade em redes móveis de 3ª geração usando
tecnologia MIMO”, Prémio Inovação Jovem Engenheiro 2004, 1st prize (exaequo);
•
Abreu, A. “Non-invasive platform for rechargement of cardiac implants
battery”, Prémio Eng.ª Jaime Filipe, 1st prize
Some of the activities mentioned in detail in Annexes are closely interconnected
with activities carried out by it researchers in the scope of their universities. Their
inclusion in this Report is merely for the record.
13
ANNUAL REPORT 2005 – KEY IT INDICATORS
2. KEY IT INDICATORS
2.1 Human Resources
Position
Aveiro
Coimbra Lisbon
Total
Full Professor
6
3
9
18
Associate Professor
7
5
18
30
Assistant Professor
17
15
40
72
Post. Doc.
3
0
3
6
Coordinator Professor
0
4
2
6
Assistant Lecturer
1
14
0
15
PhD Student
21
13
48
82
MSc Student
19
11
34
64
Graduate
36
2
6
44
110
67
160
337
TOTAL
Table 2 - Current it human resources
15
2.2 Projects
Funding Agency
Number
AdI
6
Anglo-Portuguese Joint Research Programme Treaty of Windsor
1
Brisa
1
DSIC / Ministerio de Educacion y Ciencia – Espanha
1
ESA
2
ESF
6
EU / IST Programme
13
EU / TEMPUS
1
FCT / ESA
1
FCT / PNAT
1
FCT / POCI
5
FCT / POCTI
7
FCT / POSC
17
FCT / POSI
6
ICP / ANACOM
1
Infineon Technologies
1
INSTICC
1
16
ANNUAL REPORT 2005 – KEY IT INDICATORS
Funding Agency
Number
Internal
11
INTERREG III-B
1
IPQ
1
IT/LA
16
Optimus, TMN, Vodafone
1
PT Inovação
4
SIEMENS SA
1
SIEMENS SA / AdI
1
SUDOE INTERREG III-B
1
Table 3 – Number of active projects in 2005, according to funding source
2.3 Publications
Books Journals
22
95
Conferences
MSc Theses PhD Theses TFC
348
35
15
69
Table 4 – Number of published works in 2005
"Books”- Fully authored books, Editor books, and book chapter contributions.
"Journals”- Papers in International refereed journals.
"Conferences”- Communications in International and National refereed conferences.
"MSc and PhD Theses”- Concluded dissertations.
"TFC”- Concluded student Final Year Projects
17
ANNUAL REPORT 2005 – FINANCIAL OUTLINE
3. FINANCIAL OUTLINE
Operational income during 2005 totalled 2.355,9 K€, distributed as indicated in
Table 5, and partially detailed in Table 6. Costs in 2005 totalled 2.388,9 k€, as
partially indicated in Table 7. Main asset changes in 2005 are listed in Table 8.
Sources of Income
Amount [k€]
Services to third parties
822,0
Subsidies
1.451,5
Other
82,4
TOTAL
2.355,9
Table 5 – Total operational income in 2005
Major clients of services
Amount [k€]
PT Inovação
424,6
OPTIMUS
67,0
TMN
67,0
ANACOM
62,9
Main sources of subsidies
Amount [k€]
Fundação para a Ciência e a Tecnologia
946,8
Commission of the European Communities
293,6
European Space Agency
100,7
Table 6 – List of major income sources during 2005
19
Costs
Staff
Amount [k€]
582,5
Management costs
14,2
Scholarships
602,0
Missions
516,9
Books and journals
45,0
Consumables
159,7
Structural costs
457,5
Table 7 – List of major costs in 2005
Assets
Amount [k€]
Increase in tangible assets
710,5
Depreciation
387,8
Technical and Scientific Equipment
667,9
Table 8 – Main asset changes in 2005
20
ANNUAL REPORT 2005 – WIRELESS COMMUNICATIONS
4. RESEARCH AREAS
4.1 Wireless Communications
4.1.1
Area Coordinators
•
Carlos Cardoso Fernandes
•
José Carlos Pedro
4.1.2
Human Resources
4.1.2.1 Overview
Degree
Aveiro
Coimbra
Lisboa
Full Professor
2
0
6
Associate Professor
4
0
8
Assistant Professor
5
2
20
Assistant Lecturer
0
0
0
Post. Doc
1
0
1
PhD Student
6
0
21
MSc Student
2
0
17
Graduate
6
0
5
26
2
78
TOTAL
Table 9 – Overview of human resources in the Wireless Communication Area.
21
4.1.2.2 Permanent Collaborators
Name
Degree
Position
Group
Afonso Barbosa
Agregação
Full Professor
RMOM- Lx
Augusto Albuquerque
Agregação
Full Professor
RCS
Carlos Salema
Agregação
Full Professor
RMOM- Lx
José Carlos Pedro
Agregação
Full Professor
RMOM- Av
José Epifânio Franca
Agregação
Full Professor
ICS - Lx
José Leitão
Agregação
Full Professor
CTPR
José Neves
Agregação
Full Professor
RMOM- Av
Mário Lança
Agregação
Full Professor
RMOM- Lx
Carlos Cardoso Fernandes
Agregação
Associate Professor
RMOM- Lx
João Costa Freire
Agregação
Associate Professor
RMOM- Lx
Luís M. Correia
Agregação
Associate Professor
RMOM- Lx
Américo Correia
PhD
Associate Professor
RCS
António Alves Moreira
PhD
Associate Professor
RMOM- Lx
Atílio Gameiro
PhD
Associate Professor
RMOM- Av
Carlos Paiva
PhD
Associate Professor
RMOM- Lx
Carlos Sá da Costa
PhD
Associate Professor
RCS
Francisco Cercas
PhD
Associate Professor
RCS
22
Name
Degree
Position
Group
João Nuno Matos
PhD
Associate Professor
RMOM- Av
José Rocha Pereira
PhD
Associate Professor
RMOM- Av
Nuno Borges Carvalho
PhD
Associate Professor
RMOM- Av
António Navarro
PhD
Assistant Professor
RMOM- Av
António Rodrigues
PhD
Assistant Professor
RCS
António Topa
PhD
Assistant Professor
RMOM- Lx
Armando Rocha
PhD
Assistant Professor
RMOM- Av
Carlos Leme
PhD
Assistant Professor
ICS - Lx
Custódio Peixeiro
PhD
Assistant Professor
RMOM- Lx
Fernando Fortes
PhD
Assistant Professor
RMOM- Lx
Fernando J. Velez
PhD
Assistant Professor
RCS
Fernando Nunes
PhD
Assistant Professor
CTPR
Filipe Cardoso
PhD
Assistant Professor
RMOM- Lx
Francisco Sena da Silva
PhD
Assistant Professor
CTPR
João Gil
PhD
Assistant Professor
RMOM- Lx
João Vaz
PhD
Assistant Professor
RMOM- Lx
João Vital
PhD
Assistant Professor
ICS - Lx
Jorge Paulo Torres
PhD
Assistant Professor
RMOM- Lx
Jorge Pereira
PhD
Assistant Professor
RMOM- Lx
23
Name
Degree
Position
Group
Jorge Rodrigues da Costa
PhD
Assistant Professor
RMOM- Lx
José Bioucas Dias
PhD
Assistant Professor
CTPR
José Sanguino
PhD
Assistant Professor
CTPR
Maria João Rosário
PhD
Assistant Professor
RMOM- Lx
Mário Silveirinha
PhD
Assistant Professor
RMOM - Co
Paulo Marques
PhD
Assistant Professor
CTPR
Pedro Santos
PhD
Assistant Professor
RMOM- Lx
Rafael Caldeirinha
PhD
Assistant Professor
RMOM – Co
Victor Santos
PhD
Assistant Professor
RMOM- Av
Telmo Reis Cunha
PhD
Assistant Professor
RMOM- Av
Jonathan Rodriguez González
PhD
Post – Doc
RMOM- AV
Martijn Kuipers
PhD
Post- Doc
RMOM- Lx
Carla Oliveira
Licenciatura
MSc Student
RMOM- Lx
Gonçalo Carpinteiro
Licenciatura
MSc Student
RMOM- Lx
Daniel Sebastião
Licenciatura
Graduate
RMOM- Lx
Eduardo Lima
Licenciatura
Graduate
RMOM- Lx
Ricardo Matos Abreu
Licenciatura
Graduate
RMOM- Av
Table 10 – Permanent collaborators working in the Wireless Communications Area
24
4.1.2.3 Other Collaborators
Name
Degree
Position
Group
Pedro Pinho
MSc
Assistant Professor
RMOM- Av
Alexandre Passos de Almeida
MSc
PhD Student
RCS
António Serrador
MSc
PhD Student
RMOM- Lx
Bruno Coelho
MSc
PhD Student
RMOM- Lx
Fernando de Sousa
MSc
PhD Student
CTPR
Fernando Santos Azevedo
MSc
PhD Student
RMOM- Lx
Francisco Monteiro
MSc
PhD Student
RCS
Gabriela Galvano
MSc
PhD Student
RMOM- Lx
Gonçalo Matias
MSc
PhD Student
CTPR
Isabel Rodrigues
MSc
PhD Student
CTPR- Lx
Jerzy Guterman
MSc
PhD Student
RMOM- Lx
João Carlos Silva
MSc
PhD Student
RCS
João Eira
MSc
PhD Student
RCS
João Paulo Martins
MSC
PhD Student
RMOM- Av
João Tavares
MSc
PhD Student
RMOM- Av
Joaquim da Silva Bernardino
MSc
PhD Student
RMOM- Lx
José Nascimento
MSc
PhD Student
CTPR
Luís Miguel Mendes
MSc
PhD Student
RMOM- Lx
25
Name
Degree
Position
Group
Miguel Campilho
MSc
PhD Student
RMOM- Lx
Nuno Cota
MSc
PhD Student
RCS
Pedro Amaro Sebastião
MSc
PhD Student
RCS
Pedro Vieira
MSc
PhD Student
RCS
Susana Mota
MSc
PhD Student
RMOM- Av
Henrique Quaresma
Licenciatura
PhD Student
RMOM- Lx
António Tavares
Licenciatura
PhD Student
RMOM- Av
Nuno Souto
Licenciatura
PhD Student
RCS
Pedro Miguel Cabral
Licenciatura
PhD Student
RMOM- Av
Pedro Miguel Lavrador
Licenciatura
PhD Student
RMOM- Av
António Abreu
Licenciatura
MSc Student
RMOM- Lx
Bárbara Coelho Gabriel
Licenciatura
MSc Student
RMOM- Av
Carlos Alberto Mendes
Licenciatura
MSc Student
RMOM- Lx
Gonçalo Carvalho
Licenciatura
MSc Student
RMOM- Lx
João Roquete Fidalgo Canto
Licenciatura
MSc Student
RMOM- Lx
João Miguel Madeira Cardeiro
Licenciatura
MSc Student
RMOM- Lx
João Vinagre
Licenciatura
MSc Student
RMOM- Lx
Joaquim Oliveira
Licenciatura
MSc Student
RMOM- Lx
José Cardoso
Licenciatura
MSc Student
RMOM- Lx
26
Name
Degree
Position
Group
José Velez
Licenciatura
MSc Student
RCS
Luís Carvalho
Licenciatura
MSc Student
RMOM- Av
Marco Alexandre Ribeiro
Licenciatura
MSc Student
RMOM- Lx
Miguel Bacelar
Licenciatura
MSc Student
RMOM- Lx
Orlando Manuel Brito Cabral
Licenciatura
MSc Student
RCS
Pedro Cristiano Brás
Licenciatura
MSc Student
RMOM- Lx
Rui Manuel F. Pedro Costa
Licenciatura
MSc Student
RCS
Sérgio Almeida Matos
Licenciatura
MSc Student
RMOM- Lx
Valdemar Monteiro
Licenciatura
MSc Student
RMOM- Av
António Abreu
Licenciatura
Graduate
RMOM- Lx
João Angeja
Licenciatura
Graduate
RMOM- Av
João Henriques
Licenciatura
Graduate
RMOM- Lx
Lúcio Ferreira
Licenciatura
Graduate
RMOM- Lx
Manuel Dinis
Licenciatura
Graduate
RMOM- Av
Nefi Carvalho
Licenciatura
Graduate
RMOM- Av
Ricardo Matos Abreu
Licenciatura
Graduate
RMOM- Av
Rui Rodrigues
Licenciatura
Graduate
RMOM- Av
Sérgio Jesus
Licenciatura
Graduate
RCS
Tiago Lages
Licenciatura
Graduate
RCS
Table 11 – Non-permanent collaborators working in the Wireless Communications Area
27
4.1.3
Summary of Research Achivements
Research work in the Wireless Communications Scientific Area of it covers the main
aspects related to the air interface in wireless communications and supporting
hardware/software. Activities fall within the following five general topics:
-
Antenna Analysis and Design;
-
Physical Modelling and Wave Propagation Characterisation;
-
Wireless Circuits and Devices;
-
Transmission and Reception Systems;
-
System Planning and Resource Management.
4.1.3.1 Antenna Analysis And Design
Work on antennas may be grouped under two main topics: personal small-terminal
antennas for frequencies typically below 6 GHz, and millimetre wave antennas for
space applications. The work was carried in the framework of ACE Network of
Excellence (ACE NoE), COST Action 284 -Innovative Antennas for Emerging
Terrestrial & Space-based Applications, ESA funded ILASH project, and FCT funded
projects R-Meta project and EBGCOM project.
Small terminal antennas
Following previous activities in the framework of European funded FLOWS project,
work has continued on the development of new antenna configurations adequate
for laptop PC integration, compatible with multiple-band specifications and with the
possible use of these antennas with MIMO multi-antenna techniques. Prototypes to
be used for GSM1800, UMTS, IEEE 802.11b/Bluetooth and HiperLAN2 standards,
have been designed using printed antenna technology, fabricated and tested. An
innovative omnidireccional wrapped microstrip antenna has been introduced for
WLAN applications. Single and multi-feed patches with slots have also been
considered. Antenna prototypes have been fabricated and experimentally tested,
including the cases where the antenna is integrated into the laptop.
A new topic has started in the framework of R-META project, related to
geometrically reconfigurable antennas for operation in some the above referenced
service bands. Integration of Pin-diodes in the antenna design is being studied for
28
antenna electronic reconfiguration by switching. This is a first step prior to the
introduction of MEMS for electronic antenna geometry reconfiguration.
Millimetre-wave antennas
Activity on millimetre wave dielectric antennas continued on different instances of
double material integrated lenses for space applications. After a thorough
systematic study, general rules were produced for the design of highly performing
integrated scanning lens antennas. The study addressed also the design of shaped
double-shell lenses for quasi-optical systems. All the developments were integrated
into ILASH lens design tool that is being developed at IT for ESA-ESTEC. Lens
prototypes were fabricated and experimentally tested.
Benchmarking actions continued in the framework of ACE NoE, in order to compare
the it ILASH code performance with alternative codes developed by the IETR/Univ.
of Rennes. Also lens manufacturing benchmarking was carried between IT and IETR
using as a benchmark target an Earth observation lens specification set by Alcatel
Espace.
In parallel with these activities, it-Lisboa millimetre wave anechoic chamber was
rebuilt following a major accidental flooding originated by the air-conditioning
maintenance company which destroyed the chamber and affected half of the
millimetre wave test equipment.
4.1.3.2 Physical
Modelling
And
Wave
Propagation
Characterization
Work in this sub-area addresses both guided-wave and non-guided wave
phenomena characterization which includes radio wave propagation modelling, as
well as numerical modelling.
Electromagnetics of Complex Media
One very strong work topic is related to electromagnetics of complex media and of
metamaterials, artificial materials that are obtained by random or periodic inclusion
of metallic or dielectric particles into a host dielectric media to produce
unconventional electromagnetic properties not commonly found in nature.
29
In the framework of EBGCOM project, work has started for the development and
implementation of novel RF/microwave components based on the EBG technology
for applications in broadband communications.
In the framework of R-META project, work has started on the development and
characterization of metamaterial structures that can present effective properties of
a perfect magnetic conductor (PMC).
Metamaterials are also of interest for the design of new waveguide components for
microwave and millimetre-wave devices. Work was carried on the miniaturization of
waveguide filters by using double-negative materials (periodic loading of cut-off
waveguide with resonant particles presenting effective negative permeability
behaviour). Work pursued also on the analytical/numerical characterization of the
electromagnetic
wave
propagation
in
three-dimensional
planar
waveguides
involving complex media and metamaterials with negative refractive index (NRI)
using a continuous media approach. For complex media, the work was mainly
focused on the analysis of the chiral nonradiative dielectric (NRD) waveguide,
finding application in the millimetre-wave regime. Although chirowaveguides have
been extensively addressed in the literature, the analysis of this type of waveguide
is still to be published. The analytical characterization of waveguides loaded with
NRI material was essentially devoted to NRD DNG/DPS directional couplers
operating as contra-directional coupling devices..
Some fundamental work relevant for the characterization of complex media was
also carried out, related to geometric foundations of classical electrodynamics using
geometric algebra and differential forms.
Radiowave Propagation Modelling
In the framework of mobile directional channel characterization, the major outcome
includes the analysis of the influence of several scenarios in micro- and macro-cells
in adaptive antenna beamforming and the finalization of the development of fading
characterization models in broadband systems, enabling an accurate estimation of
fading margins for several environments.
Propagation through vegetation was also a strong area of research. The discrete
Radiative Energy Transfer (dRET) model continued to be explored for nonhomogeneous random vegetation media, to find the relationship of its parameters
30
to vegetation species. Wideband channel performance was evaluated for various
site geometries with different tree species and over a wide range of frequencies, to
establish parameters such as the RMS delay spread and the coherence bandwidth.
Fast fading dynamics of signals propagating through, around or scattered from
vegetation were qualitatively assessed, as there are critical for quality of service,
RF regulation and the assessment of spectrum efficiency.
Work continued on the characterization of the interference from wind power
generator blades in communication services, taking into account the real shape and
the material of the blades. The objective is to improve previously established
clearance zone regulations.
On the framework of Earth-Satellite propagation, work has continued on the
characterization of a beacon data in terms of attenuation and depolarization. The
study involves also investigation of the relationship between fade duration and
scintillation spectrum characteristics with wind velocity.
In line with the public service part of IT mission, the MONIT project continues its
risk communication activity on public exposure to electromagnetic radiation. The
project, which is sponsored by all Portuguese mobile operators, was due to finish by
Oct. 2005 but was extended for two more years, which can be seen as recognition
of the good results achieved so far. The project contributes for public awareness of
basic concepts related to electromagnetic radiation and population exposure in
mobile communications through a public website with continuously updated on-line
measurement results from autonomous remote sensors scattered around the
Country, through direct information campaigns in public areas, and through shortcourses for non-engineers.
Numerical methods for electromagnetics
Numerical methods based on interpolating wavelets are being investigated for the
solution of Maxwell equations in collaboration with the Instituto de Matemática,
Estatística e Computação Científica (IMECC) from the university Unicamp, Brazil,
within the framework of a Portuguese/Brazilian action.
31
4.1.3.3 Wireless Circuits And Devices
Research work performed in this sub-area can be grouped under two general
topics, one related to microwave circuit design, and the other to computer aided
design of microwave/RF circuits and systems including simulation techniques and
system/device modelling. In both cases, the underlying applications fall within the
wireless area.
RF and Microwave Circuit Design
One main topic of research is related to active and passive filters, using different
technologies. Passive bandpass filters were designed for 30GHz for the low cost
LTCC (low temperature co-fired ceramics). The design includes optimisation of the
yield for fabrication in order to prove the possibility of using such substrates in
30GHz for high volume and low cost production. In this respect, models for defect
ground structures were also developed.
Beyond that, two front-end LNA circuits were implemented on SiGe MMIC
technology for both 5GHz and 28.5GHz (LMDS) applications.
VCO and Mixer topologies with differential and quadrature outputs were studied and
implemented on 0.35um CMOS technology. Also, studies were made on the design
of frequency synthesizers for frequencies of up to 6GHz on 0.35
m CMOS
technology and power amplifiers for WLAN applications on 0.35 m CMOS
technology.
This raised the necessity to concentrate on aspects concerning high frequency onwafer measurements up to 6GHz with silicon substrates. These included Sparameters, noise figure, output power, distortion and phase noise tests.
Research activities on integration of very high frequency dc-dc converters for power
management of RF CMOS SoC were started. QSW resonant step-down converters
and a hard switching step-up converter were designed for frequencies in the range
of tens of MHz to be prototyped in a 0,35 m mixed-mode CMOS process. Highvoltage low current LDMOS and low voltage high current NMOS and PMOS devices
were designed to meet the mentioned applications in different synchronous
switching topologies. A set of analog cells (Opamps, comparators, voltage
references, etc) were also designed in order to create a dedicated analog library.
Integrated inductors for very high frequency resonant and hard switching
32
topologies were designed based on new layout strategies. Studies towards crosstalk in RF-CMOS SoC blocks were continued.
Computer Aided Design Tools for RF/Microwave Circuits and Systems
Electric models were obtained up to 6GHz for spiral inductors, poly capacitors and
resistors on BiCMOS and CMOS technology.
Due to the inefficient models supplied by the CMOS MMIC foundries, semiconductor
and passive device models for CAD programs were developed in it. Due to the low
resistivity of Si substrates, techniques for experimental characterization of MMIC
components and sub-circuits were studied to support these modelling activities.
Nonlinear modelling of GaN HEMT microwave devices was extended to account for
electro-thermal effects. Most of this work finished with the proposal of some figures
of merit for memory effects that are due both to the thermal, bias circuits or device
trapping effects.
In the area of Location Based systems, the study of location based systems based
on received power and on time of arrival was continued. Moreover, a Master thesis
began on RFID studies for location systems.
In what behavioural modelling activities at the system level were concerned, the
efforts have been devoted to formulate a general nonlinear dynamic model whose
extraction is feasible with the present RF laboratory instruments or circuit
simulation tools. The general non-recursive polynomial filter with enforced
orthogonality for a certain class of multisine signals previously established has been
identified for several test cases of simulated nonlinear dynamic RF systems.
Several studies concerning excitation design for nonlinear device model extraction
and
validation
were
also
conducted.
These
led
to
preliminary
laboratory
implementations of the theoretical conclusions previously developed on using
Higher-order statistics for signal characterization. In that respect several RF &
Microwave Instrumentation set-ups were developed for the study of multi-sine
approximation
for
behavioural
modelling,
phase
measuring
for
nonlinear
characterization and behavioural models for memory identification.
33
4.1.3.4 Transmission And Reception Systems
Research work performed within this sub-area includes two main topics: UMTS
capacity enhancement techniques and channel estimation.
UMTS capacity enhancement
Applied research work has been directed to the improvement of WCDMA and MIMO
systems for UMTS. The contributions are a) The development of an equaliser based
on the MMSE (Minimum Mean Square Error) method considering MIMO and WCDMA
systems; b) Improvement of the receiver using a turbo decoder to minimize the
received bit error probability. c) Study and development of different DFEs (Decision
Feedback Equalizers) based on the MMSE equaliser for use with the HSDPA (HighSpeed Downlink Packet Access) method of the UMTS system. d) Improvement of
channel estimation methods for the UMTS system.
Research is being carried also on Low Density parity Check (LDPC) Codes for
enhancing the capacity of UMTS.
Estimation techniques
One contribution was focused mainly in theoretical and design aspects of
GPS/Galileo receivers taking into account new types of signals, namely the Binary
Offset Carrier (BOC) modulation. The following aspects were considered: a)
Development of algorithms for the joint estimation of phase/frequency and code
delay based on the stochastic nonlinear filtering framework. b) Development of
FFT-based
algorithms
for
efficient
acquisition
of
GPS/Galileo
signals.
c)
Development of new algorithms for code delay estimation based on the stochastic
filtering framework.
Another topic is related to moving target detection and estimation and linear
unmixing in hyperspectral data, continuing work done in previous years. Studies
also addressed wavelet-based image restoration, absolute phase estimation using
network optimization techniques, oil slick detection from SAR images, 3D
echographic reconstruction, and lexicographic cost assignment.
34
4.1.3.5 System Planning And Radio Resource Management
Models for traffic generation for UMTS were established, considering a large variety
of services and applications, enabling a better estimation of traffic, as well as an
improved evaluation of load, together with mobility influence via developed models.
A simulator for the air interface of UMTS-FDD was developed, enabling the analysis
of traffic aspects as well as load and handover. Algorithms were developed for the
optimization of UMTS-FDD and TDD radio cellular networks;
Work
was
also
developed
on
the
impact
of
services
and
applications
characterization on multimedia multi-class traffic modeling and QoS (Quality of
Service). Initial research was performed on the identification of cross-layer
architectures for future wireless systems, by identifying QoS metrics adequate for
the purpose of link and Medium Access and Control layers optimization. Network
planning and optimization, which represents the synthesis and integration of the
two previous activities was extensively addressed through performance evaluation
(including simulation) in multi-service deployment scenarios. By using a system
level simulator for Enhanced UMTS, results were obtained for system capacity in
terms of supported throughput, for a given grade of service. These results were
used as an input to a cost/revenue model. A simulator was produced to extract
conclusions about blocking and handover failure probabilities on a vehicular
scenario, considering the burstiness of traffic, from single- to multi-service
situations, and from absence to presence of mobility.
Cellular planning aspects for a WiMax (Worldwide Interoperability for Microwave
Access) point-to-multipoint wireless network to be developed in the region of Beira
Interior were also investigated. The potentialities of the GIS (Geographic
Information Systems) tools were explored to optimize base station location with
respect to line of sight in coverage, and a computer graphics cellular planning tool
is being developed for outdoor environments. The point-to-point component is also
being incorporated into the planning tool.
Work is being carried also on efficient radio resource management schedulers and
algorithms for broadcasting and multicasting multimedia services, namely, point-topoint specific schedulers and algorithms, including HSDPA, point-to-multipoint
schedulers
and
algorithms,
including
multi-code,
non-uniform
16-QAM
constellations, MIMO, macro-diversity combining, hierarchical cell structures.
35
4.1.4
Running Projects
4.1.4.1 Overview
Funding Agency
Number
AdI
3
Anglo-Portuguese Joint Research Programme Treaty of Windsor
1
BRISA
1
ESA
1
ESA-ESTEC
1
ESF
3
EU,IST Programme
7
FCT/ESA
1
FCT/POCTI
2
FCT/POSC
6
FCT/POSI
3
Internal
1
IT/LA
6
Optimus, TMN, Vodafone
1
PT Inovação
1
TOTAL
38
Table 12 – Number of active projects in the Wireless Communications Area in 2005
36
4.1.4.2 Activity In Projects
Acron / Ref
Title
CHIRAL / POSI/CPS/39589/2001
2D and 3D Chiral and Omega Structures:Guidance, Leakage and
Radiation Behaviour
Descript.
Three
main
objectives
can
be
identified:
(i)
Electromagnetic
characterization of 3D rectangular open chiral and omega uniform
waveguides: guidance and leakage characteristics, new features due to
chirality; (ii) Analysis of 3D open chiral and omega nonuniform
structures:
characteristics(reflection/transmission)
of
tapers
and
branches; (iii) Radiation characteristics of printed sources on planar
layered
chiral
and
characteristics(surface
omega
wave
structures:
power,
dependence
radiated
of
power,
radiation
impedance,
bandwidth) on chiral and omega parameters.
Acron / Ref
4MORE
Title
4G Multiple Antenna System On Chip for Radio Enhancements
Descript.
Development of a system on chip for MC-CDMA based 4G systems
Acron / Ref
COMMET
Title
A COmplete analog front-end for 3G MultiMEdia Terminals
Descript.
Definition and realization of a complete Analog Front-End for 3Gmultimedia terminal, integrating in a single-chip solution all the analog
baseband functions with a RF Front-End. The work to be done will focus
on innovative RF and baseband topologies for component count and cost
reduction.
37
Acron / Ref
Title
GRINFOREST / POSC/EEA-CPS/57481/2004
A generic radio channel model for propagation in inhomogeneous forests at
40 GHz
Descript.
This proposal aims to take forward the RET modelling work carried out
by the Principal Investigator (PI) under a UK consortium, which
identified a number of problems in the estimation and establishment of
the input parameters required by the RET model. In addition, this
research intends to investigate current approaches and develop new
more accurate narrow and wideband channel models through theoretical
investigations as well as experimental data gathering at 40 GHz in view
of BFWA applications. The influence of inhomogeneous vegetation in a
cluttered environment with respect to their influence and the radio
propagation path as well as their potential origin of interference within
networks and onto other networks will be addressed in this program.
Both narrow and wideband channel performances and fast fading
dynamics of signals propagating through, around or scattered from
vegetation will be modelled and included in the prediction tool, as these
are critical for quality of service, RF regulation and the assessment of
spectrum efficiency.
Acron / Ref
ACTFIL
Title
Active filters
Descript.
Design of active filters on Si MMICs
Acron / Ref
ACE / FP6-508009
Title
Antenna Centre of Excellence
Descript.
This Network of Excellence is intended to increase the efficiency and
relevance of antenna research in Europe. It plans to achieve horizontal
38
integration by selecting, perfecting and regrouping for dissemination of
world level courses, documentation, software and test resources. The
Joint Research Programme (JRP) will provide vertical integration,
fostering university-industry co-operation and focusing research to
support Europe’s competitiveness and to limit duplications in 4 key
areas: A. Millimetre wave antennas (Integrated, Meta-material based…)
B. Small terminal antennas (Miniaturised, using MEMS…) C. Broadband
antennas D. Re-configurable antennas.
Acron / Ref
ModEx / IT/LA/308/2005
Title
Behavioural Model Extractor
Descript.
This
project
aims
at
producing
the
necessary
algorithms
and
measurement set-ups for establishing a certain behavioural model
format of nonlinear dynamic systems found in common wireless links
and its corresponding extraction laboratory bench.
Acron / Ref
Title
Descript.
BMRUF / POSC/EEA-CPS/58759/2004
Broadcasting and Multicasting in Enhanced UMTS Networks
Present several enhancement techniques suitable for multicast and
broadcast to increase the capacity of UMTS networks in order to enable
multimedia broadcast/multicast services (MBMS). The scenario chosen to
test by simulation the enhancement techniques suitable for multicast and
broadcast is a part of Lisbon City.
Acron / Ref
Title
B-BONE / IST-2003-507607
Broadcasting and Multicasting Over Enhanced UMTS Mobile Broadband
Networks
39
Descript.
B-BONE
main
objective
is
to
further
enhance
UMTS
capacity,
transmission rates, RAN and Core network functionalities, considering
both
FDD
and
TDD
modes,
so
as
to
accommodate
digital
broadcasting/multicasting (multimedia) type services.
Acron / Ref
Title
COMPACT / POCTI/EEI/1641/2001
Compact Range for millimeter wave antenna measurements using
dielectric lenses
Descript.
Implementation of an antenna measurement compact range that uses a
dielectric
lens
as
a
collimating
device,
avoiding
the
positioning
limitations associated with near-field systems. A new design used in the
dielectric lens eliminates the need for a lens with edge serration that is
commonly used to minimize edge diffraction. An overall system
performance evaluation is performed.
Acron / Ref
Title
CoLTeMEPAI / POSC/EEA-ESE/55739/2004
Compensation of Long Term Memory Effects in Power Amplifier
Intermodulation Distortion
Descript.
The main objective of this project is to propose newly design techniques
for PA in order to transform a dynamic PA in a memoryless one, mainly
by eliminating thermal and/or trapping low frequency behaviour’s. This
main goal will be divided into different objectives; first the correct
understanding of the thermal and trapping effects on nonlinear
intermodulation distortion will be studied. Then with this knowledge
some design techniques, based either on PA intrinsic solutions, or on
external compensation schemes will be proposed. Finally with these
studies in mind, we hope to build a PA without memory effects.
40
Acron / Ref
CROSSNET / POSC/EEA-SRI/57503/2004
Title
Cross-Layer Design and Network Planning for B3G Systems
Descript.
After 3G mobile and wireless systems take-up, the research community
is now directing its interest towards unified ways of looking at system
design, optimisation, and QoS issues to satisfy the requirements of next
generation multi-service mobile and wireless IP-based networks. Their
implementation requires the development of IP QoS architectures and
mechanisms encompassing the various layers of the OSI Model to cope
with the new requirements. The basic idea to be pursued in this project
is that QoS provision in wireless networks, will require the joint
collaboration among physical, MAC, IP and transport layers; how it may
be done, and new definitions of cross-layer protocols are thus important
areas for collaborative studying and research. As these multimedia
communications systems will be wide- and broadband (with data rates
much higher than 3G ones), multi-service, and multirate ones, the QoS
provision for each service (within different traffic classes), and the
identification of suitable schemes to guarantee high capacity in these
heterogeneous environments are also of particular concern in this
project. To achieve these goals the project is divided into three main
areas: __ Traffic modelling and QoS, where traffic models appropriate to
characterise the different classes of services envisioned for B3G systems
are studied. Characterisation parameters and traffic models that
accounts for multi-rate applications will be used as an input of the
design and optimisation process. __ MAC definition and cross-layer
design, where the use of the traffic model results, and proposals for
architectures using cross-layer information (CLI) to achieve QoS are
investigated and assessed. Research work will include the identification
and transport of relevant cross-layer information (CLI), the definition of
a cross-layer (CL) architecture framework, and Cross-layer strategies
between PHY and MAC/RRM. __ Network planning and optimisation,
which represents the synthesis and integration of the two previous
activities by means of performance evaluation (including simulation).
41
Multi-service deployment scenarios, with simultaneous support of multirate
multimedia
applications,
provides
a
framework
for
possible
operation environments. Traffic engineering aspects related to the
measurement, modelling, and control of multimedia multi-class traffic
(e.g., related with mobile IP and micro-mobility issues) will also be
addressed, as well as novel packet-switched QoS architectures aspects,
and their performance. The impact of economic in systems optimisation
will also be addressed. Our methodology will be based both in modelling
and simulation work but network traffic measurements will also be
performed. Finally, it is important to highlight that this research
programme is challenging for both IT teams (Covilhã and Aveiro), and
does constitute an innovative area of research that will strongly
contribute to”all-IP”mobile and wireless communications research for
B3G systems within Europe.
Acron / Ref
DVR
Title
Digital Video Recorder
Descript.
DVR will be able to serve video to several terminal types through
heterogeneous networks. Special emphasis will be given to MPEG4/H.264 mobile terminals. VDR will be incorporated in the NetVia
telematic solution of PT Inovação.
Acron / Ref
Title
Descript.
Viave
DSRC system development destined to the automatic toll gate payment
The main objectives of this project are: a) Development of the DSRC
system concerning the automatic toll payment; b) Study and follow up of
the European normalisation and of the technological offer associated to it;
c)
Development
of
the
OBE
(on-board-equipment)
prototype;
d)
Development of the RSE (road-side-equipment) prototype; Test and
42
validation of the DSRC system.
Acron / Ref
Title
EBGCOM / POSC/EEA-CPS/60170/2004
Electromagnetic bandgap antennas and components for broadband
communications
Descript.
Electromagnetic bandgap (EBG) structures are microwave or millimetrewavescaled counterparts of photonic crystals. These devices are one-,
two-, or three-dimensional periodic structures in which propagation of
electromagnetic waves is not allowed in some frequency bands or
directions. This property can yield microwave devices with new
interesting characteristics with direct applications in communication
systems, in particular, wireless communications. The main objective of
this project is to design, develop and implement novel RF/microwave
components based on the EBG technology that find applications in
broadband communications.
Acron / Ref
GMF4ITV
Title
GMF for ITV
Descript.
The overall objective of this proposal is to enhance the technological
perspectives of the Multimedia Home Platform (MHP) standard by
providing a GMFfor iTV. It accelerates the uptake of DVB-MHP and
provides
an
end-to-end
platform
for
interactive
services
on
heterogeneous multimedia devices (STB and PC). The platform will
enable the content and service provider to create, manage and,
distribute linearily composed, pre-recorded video streams in conjunction
with non-linear data and allow interactivity at the end device on object
or key-frame level of the content.
43
Acron / Ref
I-Garment
Title
Integrated System for Management of Civil Protection Units
Descript.
Today’s cities present us with diverse and profound problems such as
unsustainable demographic growth, lack of space, growth of the
suburbs, air pollution, terrorism and growth of nomad and homeless
population, leading to an increase in the lack of safety amongst all those
living in it. Also, the constant tendency to miniaturize technology has
largely insured the presence of mobile computing in the daily lives of
ordinary citizens over the past few years. The ubiquitous presence of
cell phones and PDA’s are clearly representative of this and very soon
these devices will be used for remote computing thanks to more
powerful microprocessors and the expansion of their sound and graphic
possibilities. Since these devices have become such an integral part of
users’ daily routines, it is only natural that these systems should
eventually be integrated into people’s clothing. The technological
advances in equipments for the new generation of workers, namely
those serving as Civil Protection agents, will naturally lead to the
integration of these technologies into their garments, resulting in a more
efficient disaster management and an increased safety for them. These
equipments are now required to have means of protection against many
different types of threats and, at the same time, guaranteeing a
minimum time of survival in adverse conditions for an amount of time
reasonable enough as to allow for his/her evacuation of the site. In the
future, it will be also common for officers to keep track of their men in
the field in real-time and maintain a continuous link with them for
exchanging information and issue specific instructions accompanied by
the necessary visual data. In practice, taking into account the needs of
Civil Protection workers, there will have to be an integration of all these
functionalities into their individual equipment in order to build a single
system, portable and lightweight in order to allow for normal movement
and operation. All the functionalities of these new uniforms must be the
outcome
of
a
discussion
over
issues
such
as
comfort,
44
safety,
communication and information transfer between peers, with the
ultimate goal of developing individual uniforms in order to meet the
needs of a potentially large market of policemen, firemen and mobile
rescue teams.
Acron / Ref
Title
COST 284
COST 284 ''Innovative Antennas for Emerging Terrestrial and SpaceBased Applications''
Descript.
To progress and innovate in the theoretical modelling and in the
multidisciplinary
design
and
development
of
new
architectures,
components, circuits and test techniques for antennas. The focus will be
on antenna arrays, active and adaptive antennas and their beam
forming, in support of broadband applications up to millimetre waves.
Acron / Ref
ILASH / ESA-17514
Title
Integrated Lens Antenna Shaping
Descript.
To develop a software code for the design, analysis and optimisation of
multiple-shell integrated dielectric lens antennas for millimetre-wave
space applications.
Acron / Ref
IRFDCMOS / IT/LA/305/2005
Title
Integration of high-frequency dc-dc converters in RF CMOS SoC
Descript.
The main objective of this multi-disciplinary proposal is the development
of RF CMOS Systems-on-chip (SoC) including resonant dc-dc converter
resorting to low cost CMOS processes. The referred high efficiency
converter should be capable of managing the power delivered by
45
rechargeable cells and converting it to suitable voltage levels to supply
other SoC functional blocks, namely RF and also sensitive analog blocks.
In this fully CMOS compatible monolithic solution, the converter devices
are switched above tens or hundreds of MHz, to allow the integration of
passive energy storage elements. This will motivate the use of those
solutions in a wide range of applications, namely in battery operated
portable equipment, like displays, medical portable equipment, and
especially in electronic medical body implanted devices, where volume,
efficiency and reliability are crucial.
Acron / Ref
WIFILOCA
Title
Location Based Services in Wi-Fi, Bluetooth Systems
Descript.
The main objective of this project is the location of Wi-Fi and Bluetooth
TAGS in Wi-Fi and Bluetooth networks.
Acron / Ref
MC-CDMA / POSI/CPS/46701/2002
Title
MC-CDMA
Descript.
Investigation of signal processing techniques for 4G MC-CDMA based
systems
Acron / Ref
MobileMAN / IT/LA/296/2005
Title
Mobile IP for Broadband Wireless Metropolitan Area Networks
Descript.
This applied research project intends to design or plan fixed/portable
and mobile Wimax (Worldwide Interoperability for Microwave Access)
WMANs (Wireless Metropolitan Area Networks), pioneering implemented
in Portugal. Besides the benefits of its operation in the context of
46
university, hospital and urban environments it will be very useful for
demonstration and research purposes. The project involves five main
tasks: 1-Design and Development of IEEE 802.16 Microwave Links for
Fixed/Portable Communications. 2- Planning of a Cellular IEEE802.16e
for Mobility Support. 3- Network Architectures for Interoperability and
Mobile IP between Wifi and WiMax networks. 4- Security for IEEE
802.16. 5-Multimedia Service and Applications for Mobile Platforms. Our
methodologies will be based on detailed planning, as well as network
implementation, demonstration and validation. Measurements will be
performed to evaluate QoS, and help both the dimensioning and the
optimisation processes.
Acron / Ref
MEGaN / POCTI/ESE/45050/2002
Title
Model Extraction of GaN Transistors
Descript.
The main objective of MEGaN is exactly to propose and extract a
nonlinear electro-thermal model of GaN HEMTs encapsulated and in die
form. For that, first a complete small signal equivalent circuit extraction
set-up will be created, which will be then complemented by a nonlinear
pulsed I/V (Ids(Vgs,Vds)), Q/V (Cgs(Vgs) and Cgd(Vgd)) and thermal
characterization. The electro-thermal model thus proposed will be
validated for output power, power added efficiency and linearity, by the
design and test of a microwave power amplifier prototype. So, a final
objective of MEGaN is also to present a preview of the expected
capabilities of those devices for RF applications.
Acron / Ref
MONIT
Title
Monitoring of Electromagnetic Radiation in Mobile Communications
Descript.
Main objectives: To provide ''public awareness'' information about
exposure to radiofrequency electromagnetic wave radiation. To perform
47
a systematic monitoring of electromagnetic radiation level near mobile
communications base station sites all over the country, and to share
these results through a dedicated website.
Acron / Ref
MULTIPLAN / POSI/CPS/45726/2002
Title
Multi-service cellular planning for mobile communications
Descript.
The
project
focus
is
cellular
planning
for
multi-service
mobile
communications systems (3G, 3.5G and 4G) in the aspects of
characterisation and classification of services and applications, resource
re-use, teletraffic, cost/revenues and signal processing. Research is
focused on i) Classification of new mobile and wireless services and
applications,
ii)
Characterisation
of
applications
through
the
identification of relevant parameters and the evaluation of their range of
variation, iii) Identification of deployment scenarios, and realisation of
forecasting studies for Internet and Multimedia traffic, iv) developing
models for the impact of mobility in multi-service time-based and nontime based (real and non real-time) traffic, in the aspects of blocking
and delay and v) cost/revenue optimisation. Original contributions will
be pursued on developing and characterising these new applications and
on the tele-traffic performance of advanced wireless and mobile
networks
(e.g.,
using
models
as
the
Markov-modulated
Poisson
Process/Bernoulli-Poisson-Pascal one or the ones for self-similar traffic).
Cellular planning optimisation will be addressed through the inclusion of
traffic aspects in a cost/revenue model and also into a cellular Mobile
Broadband System planning tool developed within our group.
Acron / Ref
MuSILAGE / IT/LA/301/2005
Title
Multi-sine wave generator
Descript.
By proving that the response’s power spectral densities (output spectra)
48
of an arbitrary (causal, stable and of finite memory) nonlinear dynamic
system to two different signals are equal if and only if the two signals
have equal higher-order autocorrelations or power spectral density
functions, the authors of this proposal have recently established the
theoretical framework for the solution of a problem of great engineering
significance: How to design a standard signal stimulus – a multi-sine –
capable of mimicking the test of a nonlinear dynamic system under a
pre-determined excitation [1, 2]. Then, they also proposed a numerical
method for designing a multi-sine that shows such higher-order
statistics, which established the methodology necessary to conceive an
“ideal arbitrary waveform generator”. Unfortunately, when these multisine signals are to be created by a laboratory instrument, several
problems appear which can be traced back to the nonlinear path from
the DSP generator to the output of the RF generator itself. As the multisine flows through the mixers, amplifiers, and filters, their tones’
amplitudes and relative phases are modified which necessarily impairs
the required higher-order signal statistics. If those changes result in
mere linear phase shift and amplitude attenuation, then they can be
compensated by including that effect in the DSP as a linear equalizer.
However, if these effects are nonlinear, then the referred phase shift
and attenuation depend on the amplitude of the multi-sine envelope,
and a “nonlinear equalizer”(some form of dynamic linearizer) is in order.
Acron / Ref
NEWCOM
Title
Network of Excellence in Wireless Communications
Descript.
NEWCOM aims at creating a European network that links in a
cooperative way a large number of leading research groups addressing
the Strategic Objective “Mobile and wireless systems beyond 3G”, a
frontier research area of the Priority Thematic Area of IST
49
Acron / Ref
OILSAR / PDCTE/CPS/49967/2003
Title
Oil Slick Surveillance Using ASAR and MERIS Dat
Descript.
The
project
aims
at
improving
state-of-the-art
oil
slick
detectors/classifiers by working out the following issues: 1. Combine
ASAR and MERIS data to improve the classifier performance. 2. Adopt
Bayesian region-based segmentation approaches using Markov Random
Fields, leading to effective segmentation of dark regions in SAR images.
3. Use wind information derived from ASAR data and available on the
Wave Mode Ocean Wave Spectra (ASA_WVP_2P). 4. Incorporate recent
results, according to which high order moments (from the second on) of
SAR images are informative with respect to oil/water classification. 5.
Adopt Bayesian Networks to fuse ASAR and MERIS data and to build the
classifier.
Acron / Ref
PHASE / IT/LA/325/2005
Title
Phase Unwrapping: A New Max-Flow/Min-Cut Based Approach
Descript.
Recent results on energy minimization via Graph Cuts have opened the
door to a series of advances in low-level image problems such as
segmentation, restoration, classification, stereo, and multi-camera
scene reconstruction. By exploiting this new energy minimization
results, this project aims at conceptual and algorithmic developments in
the field of Phase Unwrapping (PU), namely, the following: Conceptual
1. Design exact minimizers for Lp-norm based PU, for p >= 1 2. Design
sub-optimal minimizers for Lp-norm based PU, for 0 < p < 1 3. Design
new robust clique potentials tailored to PU, based on the Bayesian
paradigm 4. Design PU schemes taking advantage of diversity (e.g.,
space or frequency), i.e., of more than one sources of observed
wrapped phase. Algorithmic 1. Develop, in C/C++, efficient MinCut/Max-Flow algorithms taking advantage of the graph structure
inherent to the problems listed above 2. Develop efficient algorithms
50
implementing the minimizers listed above 3. Develop “real world”
application-oriented prototype demonstrators for these algorithms.
Acron / Ref
Title
PROVEG
Propagation Channel Modelling in Vegetation Media for Future Fixed and
Mobile Radio Systems
Descript.
Research is being carried out at University of Glamorgan (UoG) on
propagation modelling to establish planning and design tools for Microand Macro- cellular personal mobile radio systems operating at
microwave and millimetre wave frequencies. Concurrently, researchers
at
the
Polytechnic
Institute
of
Leiria
(ESTG-IPL)/
Instituto
de
Telecomunicações (IT) have developed knowledge in the radiowave
propagation areas, mainly in vegetation studies of single and small
groups of tree formations. Joint research work has been undertaken by
both teams to further test and validate a generic model for radiowave
propagation through vegetation based on the Radiative Energy Transfer
Theory (RET) at frequencies above 1 GHz. Results of this initial
investigation have been jointly published in scientific journals. This
proposal aims to take forward the RET modelling work carried out at
Glamorgan which identified a number of problems in the estimation and
establishment of the input parameters required by the RET model. The
specific objectives of the project will be: i) Enable members of both
teams to meet and to review more critically common areas of interest
and beneficial ways of collaboration. ii)Promote research in Portuguese
Institutions, especially in the Polytechnics. iii) Exchange researchers so
that jointly the two groups can demonstrate application of models, carry
out experimental measurements and jointly assess and interpret results.
iv) Design joint experiments aimed at characterising and modelling
attenuation due to absorption, scattering and depolarisation for various
trees species, required in the development of the prediction tool. v)
Define further measurements scenarios to provide further validation
51
aimed at testing and improving the accuracy of the prediction tool. vi)
Formulate recommendations on the use of the tool for the planning, coordination and optimisation of radio links and services.
Acron / Ref
TRIVial
Title
Radio Interactive Transmission of Local Video
Descript.
Project TRIVial intends to develop a wireless residential platform. This
project is included in telecommunications and information area and one
of main goals is to study and consequently choose a local wireless
network preferentially wide band as well as researching new video
coding and transmission techniques appropriate for that network. The
algorithms to be researched and recommended will take into account
that the terminal equipments are the conventional TV sets associated to
remote control units with keyboard and mice making them ideal to
provide multimedia interactive applications. Those algorithms will also
take into account interoperability aspects between the platform to be
developed and the television DVB (Digital Video Broadcasting) and radio
DAB (Digital Audio Broadcasting) broadcasting networks.
Acron / Ref
R-META / POSC/EEA-CPS/61887/2004
Title
Reconfigurable Low-profile Antennas Using Metamaterials
Descript.
The aim of the project is to design and theoretically characterize
reconfigurable metamaterial surfaces that can be used as ground planes
for low-profile antennas, although other relevant applications are
anticipated. Tunable elements are incorporated into the surface, such as
varactor diodes or micro-electro-mechanical systems (MEMS), to allow
that the resonance frequency, as well as the effective response of the
surface
(i.e.
the
effective
boundary
condition),
can
be
electronically.
52
tuned
Acron / Ref
SiGeM / IT/LA/304/2005
Title
Silicon Germanium MMICs for RF Front End Transceivers
Descript.
Increase the know how and to create efficient tools for a first run
realisation
of
multifunction
microwave
MMICs
with
and
low
millimetre
cost
wave
and CMOS
up
to
30GHz,
compatible
SiGe
technologies. We will define the maximum usable frequency for each
front-end component for the studied SiGe technologies.
Acron / Ref
TARGET
Title
Top Amplifier Research Group in an European Team
Descript.
Microwave power amplifier design methods and technologies for high
efficiency and linearity
Acron / Ref
COST 273
Title
Towards Mobile Broadband Multimedia Communications
Descript.
The main objective is to increase the knowledge on the radio aspects of
mobile broadband multimedia networks, by exploring and developing
new methods, models, techniques, strategies and tools towards the
implementation of 4th generation mobile communication systems. It
considers frequencies ranging from the upper UHF up to millimetre
waves, and data rates higher than 2 Mb/s (probably up to 155 Mb/s). As
a secondary objective, it is intended that it continues to play a
supporting role similar to the one played by the previous Actions in the
mobile communications area. That is, besides giving inputs to the
development of 4th generation systems, it is also expected that it will
contribute to the deployment of systems that are very close to
53
completion of their standardisation phase, like UMTS and HIPERLAN 2.
Acron / Ref
COST 290
Title
Traffic and QoS Management in Wireless Multimedia Networks
Descript.
The main objective of the Action is to increase the knowledge on future
advanced Multiservice Wireless Networks (MWNs) MWNs and specifically
on traffic nature and behaviour and its impact on network architecture,
performance and planning. Special attention will be given to Quality of
Service and related aspects in both access networks and core networks
in the presence of mixed multimedia traffic. To accomplish this, new
analytical tools, software implementations and prototypes will be
developed and validated. Action has been divided into four Working
Groups (WGs). Working Group 1: Traffic Engineering, Congestion
Control and Parameters Estimation in Packet-Switched Mobile and
Wireless Environment for 3G and beyond Working Group 2: Specific
issues and QoS for Future Packet-Switched Mobile and Wireless
Networks Working Group 3: Network Planning and Architectures
Working Group 4: New Services and QoS Mobile Pricing
54
4.1.5
Running and Concluded Theses
Final Year Projects
Supervisor
Student
Title
End Date
Wireless Network
Aníbal Manuel de Oliveira
Duarte
Dimensioning for the
Rui Rosas
Interconnection of the
7/2005
Research Units of Aveiro
Norte's Programme
António Topa
José Trindade &
Ricardo Figueira
Componentes Fotónicos
Passivos para Óptica
7/2005
Integrada
Dispersão em meios quirais
António Topa
Pedro Geada
com aplicação aos guias
7/2005
quirais usados em Microondas
Optimisation of Multi-service
Fernando J. Velez
Cátia Franco &
Cellular planning for Enhanced
Ricardo Rei
UMTS in Outdoors
7/2005
Environments
Dimensioning and Planning of
Fernando J. Velez
Vitor Carvalho
Mobile Wimax Network for
Medical Emergency Support in
7/2005
Beira Interior
João Nuno Matos
João Nuno Matos
Artur Ferrão & Helder Integração de sistemas de
Vasconcelos
Diogo Manuel da
Cruz Coimbra
Luis Cascais &
João Nuno Matos
João Taveira &
João Pedro Martins
Nuno Carvalho
Pedro Caetano
comunicações numa casa
DAB Receiver
Sistema rádio de pagamento
automático de serviços
DSRC Systems
7/2005
7/2005
7/2005
7/2005
55
Supervisor
Carlos Fernandes
Student
Hugo Lemos &
Jorge Rodrigues da Costa Pedro Pais
Fernando J. Velez
Dany Santos &
Rui Marcos
Title
Antenas de Ondas SubMilimétricas
End Date
9/2005
Planning of a IEEE 802.16e
Wireless Network in the
9/2005
District of Covilhã
Tele-traffic Simulation for
Fernando J. Velez
Jesús Juarez
Mobile Communications
9/2005
Systems Beyond 3G
Fernando Nunes
Nuno Freitas &
Rafael Malundo
Estudo de Receptores em
Sistemas de Navegação
GPS/Galileo
António Rodrigues
Ana Sofia Oliveira &
Software for the Support of
José Sanguino
Rui Maia Cadete
Digital Radio Link Design
Frederico Santos &
Multi-layer UMTS Common
Nuno de Pratas
Channel Analysis
António Rodrigues
Luís M. Correia
António Rodrigues
Carlos Fernandes
Jorge Rodrigues da Costa
Antómio Rodrigues
José Sanguino
António Rodrigues
Gonçalo Martins &
Sofia Correia
Ricardo Lourenço &
10/2005
10/2005
Comparison of Techniques for
the Increase of Capacity in
10/2005
Data Services in UMTS
2G/3G Traffic Management in
Filipe Teixeira Mateus Mobile Communications
Ludovica Collaciani
9/2005
Lens Antenna for Earth
Observation Application
2/2006
3/2006
Daniel dos Santos & Support System for
Ricardo Mil-Homens
Coordinated Positioning
Matos
Operations Based on GPS
Aurora da Silva
Performance of Data Services
on the UTRAN Network
7/2006
7/2006
56
Supervisor
Student
Title
End Date
Francisco &
António Rodrigues
Pedro Gordalina &
Software Tool Development
Hugo Carneiro &
for WiFi Network Planning
7/2006
Jorge Oliveira
Armando Rocha
Fernando J. Velez
Fernando J. Velez
Fernando J. Velez
Fernando J. Velez
Fernando J. Velez
Fernando Lopes
Ricardo Luis Martins Receptor Digital para Medição
de Sousa
David Gouveia &
Carlos Alberto Reis
de Balizas de Satélite
Dimensioning, Architectures,
Security and Applications in
Luís Filipe Santos
Costa,
Marco Marques &
João Teto Ambrósio
Networks to Automobiles
7/2006
Cellular Planning Tools for
Wireless Local Metropolitan
7/2006
area Networks
Planning of IEEE 802.16
Wireless Networks for Mobile
7/2006
IP Support
Nuno Anastácio &
Cross-layer Design and
Francisco Merca
Planning for B3G Systems
Ricardo Lobo
7/2006
Wimax Networks
Jorge Miguel da Silva Application of Wireless Sensor
Tavares
7/2006
Tests for DVB-T transmission
evaluation
7/2006
7/2006
Development of software for
José Rocha Pereira
Hugo Mostardinha
the control and acquisition
data of an antenna
7/2006
measurement facility
57
Supervisor
José Rocha Pereira
Luís M. Correia
Luís M. Correia
Luís Cruz
Student
Pedro Cruz &
Hugo Teixeira
Diana Ladeira &
Pedro Costa
Hugo Esteves &
Mário Pereira
Alcino Santos &
Ricardo Queirós
Title
End Date
VHF and UHF Antennas for
reception of terrestrial
7/2006
Brodcasted TV
Optimum planning of UMTS
radio networks for data
7/2006
services
Impact of intra- and intercellular interference on
7/2006
capacity in UMTS-FDD
Localização baseada em
medição de potência de sinais
8/2006
GSM
Localização baseada em
Luís Cruz
André Silva Cabrita
medição de potência de sinais
8/2006
GSM
António Topa
Ana Aguiar &
Pedro Duarte
Amplificação e Oscilação Laser
9/2006
Dispositivos Fotónicos Activos
António Topa
José Leal
and Passivos: Método da
9/2006
Constante Dieléctrica Efectiva
António Topa
Sandra Leite &
Mohamed Neto
Carlos Fernandes
Perdo Oliveira &
António Topa
Ricardo Rosa
Carlos Fernandes,
Matilde Castela,
Jorge Rodrigues da Costa Carla Medeiros
Fernando Nunes
Análise Modal de Guias de
Onda com Meios Complexos
9/2006
para Microondas and Fotónica
Ferramenta de Demonstração
de Propagação OEM em
9/2006
Ambientes Complexos
Antenas Reconfiguráveis para
Multi-serviços
Rafael Carapinha &
Methods for the Resolution of
João Lavadinho
the Equation of Navigation
9/2006
9/2006
58
Supervisor
Student
Title
Mário Leal &
Printed multi-band antenna
Cláudia Boaventura
elements for handsets
End Date
10/2006
Table 13 – List of Final Year Projects running in the Wireless Communications Area during
2005
MSc Theses
Supervisor
Student
Title
End Date
Capacity Increase through
Luís M. Correia
Pedro Fernandes
MIMO in Converging Mobile
1/2005
and Wireless Systems
António Rodrigues
Henrique Martins dos
Paula Queluz
Santos Cunha
Spectrum Management
System for Microwave Radio
3/2005
Links
UMTS Performance in Multi-
Luís M. Correia
Luis Santo
Service Non-Uniform Traffic
3/2005
Networks
Analysis of the influence of
Luís M. Correia
Carlos Rodrigues
multiservice users’ mobility on
4/2005
UMTS performance
Susana Sargento
Luís M. Correia
Luís M. Correia
Luís Barreto
Segurança em Arquitecturas
de Rede para Acesso sem Fios
Hubert
MIMO Geometrically based
Kokoszkiewicz
Channel Model
Rafal Zubala
Multiuser Geometrically based
Channel Model
7/2005
9/2005
9/2005
59
Supervisor
Student
Title
End Date
Integration of Microstrip Patch
Jaroslaw Antoniuk
Antennas into Laptop
10/2005
Computers
Carlos Paiva
Marco Alexandre dos Geometric Formulation of
Santos Ribeiro
Electromagnetism
10/2005
Surface and Leaky Modes in
Carlos Paiva
Sérgio de Almeida
Planar Waveguides Containing
Matos
Metamaterials and Omega
1/2006
Media
Fernando J. Velez
Fernando J. Velez
Orlando Manuel Brito
Cabral
Rui Fernandes Pedro
Costa
Optimisation of Multi-service
Planning in Next Generation
1/2006
Mobile IP Networks
Mobile IP in Broadband
Wireless Metropolitan Area
1/2006
Networks
Multipath Mitigation
Fernando Nunes
Teresa Ferreira
Techniques for Galileo
1/2006
Receivers
António Rodrigues
José Pedro Cardoso
Radio Management System
for Fixed Services
3/2006
Optimisation of Base Station
Luís M. Correia
João Cardeiro
Location in UMTS-FDD for
3/2006
Realistic Traffic Distributions
José Bioucas Dias
Gonçalo Matias
Multifrequency Multibaseline
Interferometric SAR
4/2006
Simulação de Dados em
José Bioucas Dias
Carlos Sousa
Sistemas Acústicos de
5/2006
Abertura Sintética
Custódio Peixeiro
Carlos Mendes
Radiation Efficiency of Small
Printed Antennas
6/2006
60
Supervisor
Student
Title
End Date
Determinação da Temperatura
José Bioucas Dias
Sandra Coelho
de Superfície com Imagens
Sintéticas do Sensor SEVIRI-
6/2006
MSG
Estimation of Exclusion Zones
Luís M. Correia
Carlos Fernandes
Carla Oliveira
for Base Stations Antennas in
Wireless Communication
6/2006
Systems
Propagation Models for
Carlos Fernandes
Jorge Silva
Complex Environments in
9/2006
Mobile Communications
Nuno Carvalho
Armando Rocha
Pedro Claro
Teixeira
Hugo
Nuno Carvalho
Raul Cavaleiro
José Bioucas Dias
Hélio Fernandes
António Rodrigues
Luís Estevam
António Rodrigues
Francisco Cercas
based on Wi-Fi Networks
Rui Filipe de Oliveira Scintillation Models at Ka-
Nuno Carvalho
António Rodrigues
Local positioning System
Nuno Correia Cruz
Pratas
Rui Lopes
José António Pereira
Velez
Band on Earth-Satellite Links
RF-ID TAGS for location
purposes
Vector Spectrum Analysis
Implementation
Algoritmos de Focagem em
SAR
Radio Resource Management
in Radio Communications
9/2006
10/2006
10/2006
10/2006
11/2006
12/2006
Performance of Data Services
over Enhanced UMTS
12/2006
Networks
Planning for WiMax Networks
12/2006
Design and Application of a
New Bluetooth Wireless
12/2006
Network
61
Supervisor
Student
Title
João Costa Freire
Guilherme St´Aubyn Desfasadores activos CMOS
João Vaz
Mascarenhas
para rádio-frequência
João Carlos Pataca
Amplificador de potência
Vinagre
CMOS para 5GHz
João Vaz
End Date
12/2006
12/2006
Amplificador de potência
João Vaz
Miguel Bacelar
monolítico com controlo de
12/2008
polarização
Table 14 – List of MSc Theses running in the Wireless Communications Area during 2005
PhD Theses
Supervisor
Armando Rocha
Américo Correia
Student
Title
Susana de Jesus
Propagation Modelling for
Mota
MIMO Channels
Mário Marques da
Silva
Future Mobile Systems
End Date
3/2005
7/2005
Space-time coding and preAtílio Gameiro
Adão Silva
equalization for MIMO MC-
12/2005
CDMA systems
Atílio Gameiro
Paulo Marques
Francisco Cercas
João Carlos Silva
Francisco Cercas
Nuno Branco Souto
Channel estimation for
broadband mobile channels
Design of Enhanced WCDMA
Systems
Turbo Processing Techniques
for WCDMA Systems
12/2005
6/2006
6/2006
On the Study of Impairments
José Carlos Pedro
Pedro Lavrador
Caused By Nonlinearities on
7/2006
Wireless Systems
62
Supervisor
Student
Title
End Date
A discrete RET Model for
Rafael Caldeirinha
Telmo R. Fernandes
Millimetre-Wave Propagation
Through Vegetation in Sub-
10/2006
Urban Macro Cells
Improved simulation
Francisco Cercas
Pedro Sebastião
techniques for wireless
12/2006
communications
Filtros activos para alta
João Vaz
Joaquim Bernardino
frequência em tecnologia
integrada monolítica para
12/2006
30GHz
João Vaz
Maria João do Rosário
Luís Moreira Mendes
José Bioucas Dias
Cristina Ribeiro
José Bioucas Dias
José Nascimento
Auto-oscilador em tecnologia
CMOS para 5GHz
Oil Slick Surveillance Using
ASAR and MERIS Data
Spectral Unmixing in
Hyperspectral Data
12/2006
12/2006
12/2006
Open loop structures in digital
José Leitão
Fernando Sousa
receivers: Software Radio
12/2006
Approach
José Neves
Manuel Dinis
Broadband Mobile
Communications
12/2006
Capacity-approaching codes
Américo Correia
Alberto Amaral Lopes with low implementation
7/2007
complexity
José Carlos Pedro
Pedro Miguel Silva
Cabral
Nonlinear Modelling of
Microwave and RF Power
7/2007
Devices
63
Supervisor
Student
Title
End Date
Development of reliable Phase
Rafael Caldeirinha
Huajiang Cui
Function measurements for
9/2007
input parameter estimation of
the RET
Custódio Peixeiro
António Rodrigues
Jerzy Guterman
João Eira
Multilband Printed Antennas
for Mobile Terminals
Wideband Receivers for Mobile
Systems
12/2007
12/2007
Capacity Enhancement of
António Rodrigues
Pedro Carvalho Vieira
Wireless Communications
Systems Using MIMO
12/2007
Techniques
Francisco Cercas
Alexandre Passos de Efficient receiver for UWB
Almeida
using TCH codes
12/2007
Impact of convergence on
Luís M. Correia
Gabriela Galvano
performance of mobile and
8/2008
wireless systems in terms of
capacity in the radio interface
Maria João Rosário
José Bioucas Dias
Fernando dos Santos Receptor Integrado em
Azevedo
Sonia Pelizzari
Tecnologia CMOS
Oil Slick Surveillance Using
ASAR and MERIS Dat
11/2008
12/2008
Common Radio Resource
Luís M. Correia
António Serrador
Management in Integrated 4G
7/2009
Mobile Communication
Systems
José Bioucas Dias
Isabel Rodrigues
Nuno Carvalho
João Paulo Martins
Wavelet Based Blind
Deconvolution
12/2009
Estudo de Efeitos de Memória
1/2010
em Sistemas/Circuitos
Table 15 – List of PhD Theses running in the Wireless Communications Area during 2005
64
4.1.6
Publications
4.1.6.1 Antennas
Papers in Journals
- Marques, P.; J. Dias; “Unambiguous Doppler Shift Estimation for Moving Targets
with High Range Velocity Using SAR Data”, IEEE Trans. on Aerospace and Electronic
Systems, Vol. (in press), January, 2005.
- Marques, P.; J. Dias; “A UAV-Friendly Strategy for Moving Targets Processing
using SAR”, Proc NATO - Sensors Electronics Technology (SET) Panel, Lisbon,
Portugal, May, 2005.
- Costa, J. R.; M. Silveirinha; C. A. Fernandes; “Antena Integrada Baseada em
Lente
de
Dupla-
Camada
para
Aplicações
Espaciais”,
Proc
Encuentro
de
Electromagnetismo Computacional, Seia, Portugal, Vol. 1, pp. 59 - 61, September,
2005.
- Costa, J. R.; M. Silveirinha; C. A. Fernandes; ”Design and Analysis of Double-Shell
Axial-Symmetric Integrated Lens Antennas for Space Applications”, Proc ESA
Antenna Workshop on Space Antenna Systems and Technologies, Noordwijk,
Netherlands, Vol. 2, pp. 865 - 872, June, 2005.
- Cheganças, B.; V. Carneiro; C. A. Fernandes; J.R. Costa; “Design of Bifocal
Integrated
Lens
Antennas
for
Space
Applications”,
Proc
Conf.
on
Telecommunications - ConfTele, Tomar, Portugal, Vol. 1, April, 2005.
- Fernandes, C. A.; J.R. Costa; M. Silveirinha; ”Dielectric Lens Antennas for
Millimetrewave Communications”, Proc Conf. on Telecommunications - ConfTele,
Tomar, Portugal, Vol. 1, April, 2005.
- Costa, J. R.; M. Silveirinha; C. A. Fernandes; ”Double-Shell Axial-Symmetric
Imaging Lens Antenna for Space Applications”, Proc IEEE AP-S/URSI International
Symp., Washington, United States, Vol. 1B, pp. 438 - 441, July, 2005.
65
- Mendes, C. M.; C. Peixeiro; “Fundamental Limits in Small Printed Antennas (in
Portuguese)”, Proc Jornadas de Engenharia de Telecomunicações e Computadores,
Lisboa, Portugal, November, 2005.
- Costa, J. R.; M. Silveirinha; C. A. Fernandes; E. B.. Lima; J. Tiago; ”ILASH –
Design and Analysis tool for Double-Shell Axial-Symmetric Integrated Lens
Antennas”, Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. 1,
April, 2005.
- Costa, J. R.; M. Silveirinha; C. A. Fernandes; ”ILASH – Software Tool for the
Development of Shaped Double-Shell Axial-Symmetric Dielectric Lens Antennas”,
Proc IEEE AP-S/URSI International Symp., Washington, United States, Vol. URSI,
pp. 1 - 1, July, 2005.
- Cardoso, F.; C. Peixeiro; L. M. Correia; “Influence of Antenna Array Coupling
Effects on the Radio Channel Impulse Response in Mobile Communication Systems”,
Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, April, 2005.
- Antoniuk, J.; A. A. Moreira; C. Peixeiro; “L-Bent Omnidirectional Patch Antenna
for Wireless Applications in Laptop Computers”, Proc IEEE AP-S/URSI International
Symp., Washington, United States, Vol. 4A, pp. 355 - 358, July, 2005.
- Antoniuk, J.; J. Guterman; A. A. Moreira; C. Peixeiro; “Location of Patch Antennas
for Wireless Applications in Laptops”, Proc Conf. on Telecommunications - ConfTele,
Tomar, Portugal, April, 2005.
- Peixeiro, C.; J. Guterman; T Gandara; A. A. Moreira; “Multiband Printed Antennas
for Application in Small Terminals of Mobile Communications and WLAN Systems (in
Portuguese)”, Proc Encuentro de Electromagnetismo Computacional, Seia, Portugal,
September, 2005.
- Antoniuk, J.; A. A. Moreira; C. Peixeiro; “Multi-Element Patch Antenna Integration
into Laptops for Multi-Standard Applications”, Proc IEEE AP-S/URSI International
Symp., Washinghton, United States, Vol. 4A, pp. 255 - 258, July, 2005.
- Peixeiro, C.; “Mutual Coupling in Small Arrays of Microstrip Patches”, Proc Conf.
on Telecommunications - ConfTele, Tomar, Portugal, April, 2005.
- Guterman, J.; A. A. Moreira; C. Peixeiro; “Omnidirectional Wrapped Microstrip
Antenna for WLAN Applications in Laptop Computers”, Proc IEEE AP-S/URSI
International Symp., Washington, United States, Vol. 3B, pp. 301 - 304, July, 2005.
66
- Gandara, T; R. Urban; L. Fregoli; C. Peixeiro; “Planar Inverted-F Antennas for
Small Multi-Standard Handsets”, Proc International Conf. on Electromagnetics in
Advanced Applications - ICEAA, Dubrovnik, Croatia, October, 2005.
- Sauleau, R.; C. A. Fernandes; J.R. Costa; “Review of Lens Antenna Design and
Technologies for Mm-wave Shaped-beam Applications”, Proc International Symp.
on Antennas and Propagation - ISAP, Saint-Malo, France, Vol. 1, pp. 414 - 416,
June, 2005.
- Perdigão, G.; H. Carmo; C. A. Fernandes; J.R. Costa; “Ultra-High Bandwidth
Antenna
for
Space
Applications
in
Millimeter
Waves”,
Proc
Conf.
on
Projects Reports
- Vaz, J. M.; “Aspectos sobre a simulação de circuitos integrados para RF”, Instituto
Superior Tecnico, April, 2005.
- Costa, J. R.; C. A. Fernandes; M. Silveirinha; “Lens Shaping Algorithm
Implementation”, Instituto de Telecomunicações, ESA-17514, January, 2005.
- Fernandes, C. A.; J.R. Costa; M. Silveirinha; “Preliminary Integrated Lens Antenna
Tests”, Instituto de Telecomunicações, ESA-17514, January, 2005.
- Carlsson, J.; P. S. Kildal; M. Martínez Vázquez; A. K. Skrivervik; C. Icheln; A. A.
Moreira; L. Duchesne; A. Johansson; P. R. Rogers; “Report on Benchmarking of
Test Facilities for Small Terminal Antennas”, EU - IST Program, FP6-IST-508009,
December, 2005.
- Carlsson, J.; P. S. Kildal; M. Martínez Vázquez; A. K. Skrivervik; C. Icheln; A. A.
Moreira; L. Duchesne; A. Johansson; P. R. Rogers; “Report on existing and new
measurement procedures”, EU - IST Program, ACE, March, 2005.
67
4.1.6.2 Circuits And Devices
Book Chapters
- Carvalho, NBC; " Nonlinear Distortion Measurement Techniques " - Chapter in
Characterization and Modelling Approaches for Advanced Linearisation Techniques ,
José Angel Garcia , Springer-Verlag , India , 2005 .
Papers in Journals
- Vendelin, G.; J. C. Pedro; P. M. Cabral; “Amplifier and Transistor Gains Revisited:
GP, Av, Ai, Gm and Zm”, Microwave Journal, pp. 80 - 92, April, 2005.
- Carvalho, N. B.; J. C. Pedro; “Load-impedance selection for maximized largesignal IMD sweet-spot effects”, International Journal of RF and Microwave
Computer Aided-Engineering, Vol. 5, No. 15, pp. 434 - 440, September, 2005.
- Carvalho, N. B.; J. C. Pedro; “Nonlinear simulation of mixers for assessing
system-level performance”, International Journal of RF and Microwave Computer
Aided-Engineering, Vol. 15, No. 4, pp. 350 - 361, July, 2005.
- Azevedo, F. S.; F. Fortes; M. J. Rosário; “Amplificador Monolítico CMOS para
sinais a 1GHz, 3V com Ganho Controlado Digitalmente”, Proc Jornadas de
Engenharia de Electrónica and Telecomunicações and de Computadores do ISEL,
Lisbon, Portugal, November, 2005.
- Azevedo, F. S.; F. Fortes; M. J. Rosário; “Conversor Monolítico CMOS para 2.4GHz
and 1.8V com Osciladores Integrados”, Proc Jornadas de Engenharia de Electrónica
and Telecomunicações and de Computadores do ISEL, Lisbon, Portugal, November,
2005.
- Caldeirinha, R.F.S.; L.M. Mendes; B.F.C Gabriel; “A 1Hz Tuneable Local Oscillator
for 450 to 900MHz Terrestrial Television Broadcasting Equipment”, Proc Conf. on
68
- Azevedo, F. S.; F. Fortes; M. J. Rosário; “A 2.4GHz Monolithic CMOS DownConversion Image Rejection Mixer with Integrated Oscillators”, Proc Conf. on
Telecommunications - ConfTele, Tomar, Portugal, April, 2005.
- Fager, C.; J. C. Pedro; K. Andersson; “A General Procedure for Extraction of Bias
Dependent Dynamic Self Heating Model Parameters”, Proc IEEE International
Microwave Theory and Tech. Symp., Long Beach, United States, Vol. CDROM, pp.
1159 - 1162, June, 2005.
- Caldeirinha, R.F.S.; L.M. Mendes; B.F.C Gabriel; “Automatic Gain Control for
Terrestrial Television Broadcasting Repeaters”, Proc Conf. on Telecommunications ConfTele, Tomar, Portugal, Vol. 1, April, 2005.
- Cabral, P. M.; J. C. Pedro; NBC Carvalho; “Extraction Procedure and Validation of
a Large-Signal Model for GaN HEMTs”, Proc Conf. on Design of Circuits and
Integrated Systems, Lisboa, Portugal, November, 2005.
- Cabral, P. M.; J. C. Pedro; NBC Carvalho; “Novel Explanation for Low Frequency
High Linearity Characteristics on BJTs”, Proc Conf. on Telecommunications ConfTele, Tomar, Portugal, April, 2005.
- Caldeirinha, R.F.S.; L.M. Mendes; B.F.C Gabriel; “Oscilador Local para Repetidores
de UHF”, Proc Jornadas de Engenharia de Telecomunicações e Computadores,
Lisboa, Portugal, Vol. 1, November, 2005.
- Carvalho, N. B.; J. C. Pedro; “Simulation of Nonlinear RF Circuits Driven By Multicarrier Modulated Signals”, Proc IEEE International Symp. on Microwave Theory and
Tech., Long Beach, United States, Vol., pp. 1 - 2, June, 2005.
- Caldeirinha, R.F.S.; L.M. Mendes; B.F.C Gabriel; “Sintonizador de Impedâncias
para Optimização de amplificadores de Potência de Rádio”, Proc Jornadas de
Engenharia de Telecomunicações e Computadores, Lisboa, Portugal, Vol. 1,
November, 2005.
Project Reports
- Vaz, J. M.; “MOSFET and HBT DC and AC Measurements and Simulation”, Instituto
Superior Técnico, April, 2005.
69
4.1.6.3 Physical
Modelling
And
Wave
Propagation
Characterization
Papers in Journals
- Fernandes, T.R.; R.F.S. Caldeirinha; M. AL-Nuaimi; J. Richter; “A Discrete RET
model for Millimeter-Wave Propagation in Isolated Tree Formations”, IEICE Trans.
on Communications, Vol. E88-B, No. 6, pp. 2411 - 2418, June, 2005.
- Silveirinha, M.; C. A. Fernandes; “A New Acceleration Technique with Exponential
Convergence Rate to Evaluate the Periodic Green Function”, IEEE Trans. on
Antennas and Propagation, Vol. 53, No. 1, pp. 347 - 355, January, 2005.
- Cardoso, F.; L. M. Correia; “A Time-domain Based Approach for Short-term
Fading Depth Evaluation in Wideband Mobile Communication Systems”, Wireless
Personal Communications Journal, Vol. 35, No. 4, pp. 365 - 381, December, 2005.
- Silveirinha, M.; C. A. Fernandes; “Homogenization of 3-D-Connected and
Nonconnected Wire Metamaterials”, IEEE Trans. on Microwave Theory and Tech.,
Vol. 53, No. 4, pp. 1418 - 1430, April, 2005.
- Silveirinha, M.; C. A. Fernandes; “Homogenization of Metamaterial Surfaces and
Slabs: The Crossed Wire Mesh Canonical Problem”, IEEE Trans. on Antennas and
Propagation, Vol. 53, No. 1, pp. 59 - 69, January, 2005.
- Topa, A.; C. R. Paiva; A. Barbosa; “Novel propagation features of double negative
H-guides and H-guide couplers”, Microwave and Optical Tech. Letters, Vol. 47, No.
2, pp. 185 - 190, October, 2005.
- Caldeirinha, R.F.S.; M. AL-Nuaimi; “A 3D Model for Prediction of Bistatic
Scattering in Vegetation Media”, Proc Conf. on Telecommunications - ConfTele,
Tomar, Portugal, Vol. 1, April, 2005.
- Richter, J.; R.F.S. Caldeirinha; M. AL-Nuaimi; A. Seville; N. Neil Rogers; N.
Savage; “A generic narrowband model for radiowave propagation through
vegetation”, Proc IEEE Vehicular Technology Conf., Stocholm, Sweden, Vol. 1, June,
2005.
70
- Silveirinha, M.; “Additional Boundary Conditions for the Wire Medium-1D”, Proc
IEEE AP-S/URSI International Symp., Washington DC, United States, Vol. URSI, pp.
1 - 4, July, 2005.
- Bruyndonckx, O.; J. R. Pereira; “Análise comparativa de dispersão numérica e
estabilidade em diferentes esquemas de diferenças finitas de alta ordem para
equações de Maxwell”, Proc Encuentro de Electromagnetismo Computacional, Seia,
Portugal, Vol. 1, pp. 7 - 11, September, 2005.
- Canto, J.C.; S.A. Matos; A. Topa; C. R. Paiva; “Comportamento dispersivo de
modos leaky em guias metamateriais DNG”, Proc Encuentro de Electromagnetismo
Computacional, Seia, Portugal, September, 2005.
- Rocha, A.; R. Teixeira; J. Neves; “Comprehensive Tools to Analyze Earth-Satellite
Ka band Propagation Data”, Proc IEEE AP-S/URSI International Symp., Washington,
United States, Vol. On CD, July, 2005.
- Caldeirinha, R.F.S.; M. AL-Nuaimi; “Depolarization Effects in Vegetation Media at
Micro- and Millimeter Wave Frequencies”, Proc IEEE AP-S/URSI International
Symp., Washington, DC, United States, Vol. 1, July, 2005.
- Silveirinha, M.; A Alù; N. Engheta; “Design and Applications of Epsilon-Negative
(ENG) Metamaterials for RCS Reduction at Microwave Frequencies”, Proc IEEE APS/URSI International Symp., Washington DC, United States, Vol. URSI, pp. 273 273, July, 2005.
- Topa, A.; C. R. Paiva; A. Barbosa; “DNG-NRD Directional Couplers”, Proc Progress
in Electromagnetics Research Symp. - PIERS, Hangzhou, China, Vol. 1, pp. 115 115, August, 2005.
- Silveirinha, M.; “Linear to Circular Polarization Conversion Using a Metamaterial
with Helical Inclusions”, Proc IEEE AP-S/URSI International Symp., Washington DC,
United States, Vol. 1, pp. 1 - 4, July, 2005.
- Rocha, A.; R. Teixeira; J. Neves; “Millimitre Wave Scintillation Measurements on
an Earth-Satellite Path”, Proc Conf. on Telecommunications - ConfTele, Tomar,
Portugal, April, 2005.
- Topa, A.; C. R. Paiva; A. Barbosa; “Mode Coupling in Parallel DNG/DPS H-Guides:
A
Full-wave
Analysis”,
Proc
USNC/URSI
National
Radio
Science
Meeting,
Washington, United States, Vol. 1, pp. 1 - 1, July, 2005.
71
- Fernandes, T.R.; R.F.S. Caldeirinha; M. AL-Nuaimi; J. Richter; “Modelling of
Directional Spectra in Vegetation Media using RET Theory”, Proc IEEE AP-S/URSI
International Symp., Washington, DC, United States, Vol., July, 2005.
- Rocha, A.; R. Teixeira; J. Neves; “One Year Fade Dynamics Statistical Results for
an Earth-Satellite Path at 20GHz”, Proc COST 280, Prague, Czech Republic, Vol. 1,
pp. 1 - 7, June, 2005.
- Rocha, A.; R. Teixeira; J. Neves; “One year of propagation measurement results
at ka-Band”, Proc Ka and Broadband Communications Conf., Rome, Italy, Vol. Vol
1, pp. 225 - 231, September, 2005.
- Santos, D.; “Phisics and Telecommunications”, Proc Conf. on Telecommunications
- ConfTele, Tomar, Portugal, April, 2005.
- Caldeirinha, R.F.S.; T.R. Fernandes; J. Richter; M. AL-Nuaimi; “Radio Modelling of
Directional Spectra in Vegetation Media using RET Theory”, Proc Conf. on
- Janeiro, F. M.; A. Topa; C. R. Paiva; “Reflection and Transmission at a Chiral
Planar Interface”, Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal,
Vol. 1, April, 2005.
- Engheta, N.; M. Silveirinha; A Alù; A. Salandrino; “Scattering and Reflection
Properties of Low-Epsilon Metamaterial Shells and Bends”, Proc International Conf.
on Electromagnetics in Advanced Applications - ICEAA, Torino, Italy, Vol. 1, pp. 101
- 104, September, 2005.
- Janeiro, F. M.; A. Topa; C. R. Paiva; “Surface and Leaky Modes in a Symmetric
DPS-DNG Slab”, Proc IEEE AP-S/URSI International Symp., Washington, United
States, July, 2005.
4.1.6.4 System Planning And Radio Resource Management
Papers in Journals
- Navarro, A.; J. Angeja; L. Carvalho; “A New Packet Loss Model of the IEEE
802.11g Wireless Network for Multimedia Communications”, IEEE Trans. on
Consumer Electronics, Vol. 50, No. 16, pp. 809 - 814, August, 2005.
72
- Velez, F. J.; M. D. Dinis; J. Fernandes; “Mobile Broadband Systems: Research and
Visions”, IEEE Vehicular Technology Society News, Vol. 52, No. 2, pp. 4 - 12, May,
2005.
- Tomé, R.; P. Lourenço; A. Grilo; F.C. Cercas; A. J. Rodrigues; F. J. Velez; P.
Sebastião; “A WLAN planning tool with a practical approach”, Proc International
Symp. on Wireless Personal Multimedia Communications WPMC, Aalborg, Denmark,
Vol. 2, pp. 1286 - 1290, September, 2005.
- Correia, A.; “An Optimized Point-to-Point Multimedia Broadcast/Multicast Service
Mode Scheduling Scheme”, Proc International Symp. on Wireless Personal
Multimedia Communications WPMC, Aalborg, Denmark, Vol. 1, pp. 123 - 127,
September, 2005.
- Carvalho, V.C.; D.S. Santos; J. Riscado; V. Cavaleiro; J. Romão; R. Marcos; R.
Costa; F. J. Velez; P. Sebastião; A. J. Rodrigues; “Concepção and Planeamento de
Redes sem Fios IEEE 802.16”, Proc Conf. sobre Redes de Computadores - CRC,
Portalegre, Portugal, Vol. 1, pp. 107 - 118, September, 2005.
- Carvalho, V.C.; J. Riscado; V. Cavaleiro; D.S. Santos; J. Romão; R. Marcos; R.
Costa; F. J. Velez; “Concepção and Planeamento de uma Rede IEEE 802.16e para o
Apoio à Emergência Médica and Segurança na Beira Interior”, Proc Conf. da
Engenharia - UBIEngenharias, Covilhã, Portugal, Vol. 1, November, 2005.
- Velez, F. J.; C. Franco; R. Rei ; “Cost/Revenue Optimisation of Enhanced UMTS
Cellular Planning in Urban Scenarios”, Proc Symposium on Information Theory in
the Benelux, Enschede, Netherlands, Vol. 1, November, 2005.
- Velez, F. J.; A. Pitsillides; O. Cabral Cabral; V. Vassiliou ; J. Antoniou; M.
Stylianou; G. Hadjipollas; “Enhanced UMTS Simulation-based Planning in Office
Scenarios”, Proc Conf. da Engenharia - UBIEngenharias, Covilhã, Portugal, Vol. 1,
November, 2005.
- Correia, A.; “HSDPA Delivering MBMS Video Streaming”, Proc International Symp.
on Wireless Personal Multimedia Communications WPMC, Aalborg, Denmark, Vol. 1,
pp. 239 - 244, September, 2005.
73
- Cunha, H.; M.P. Queluz; A. J. Rodrigues; “Microwave Radio Links Management
Using GIS”, Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol.
ISBN:972-98115-9-8, April, 2005.
- Cabral, O. Cabral; A. Pitsillides; V. Vassiliou ; J. Antoniou; M. Stylianou; G.
Hadjipollas; F. J. Velez; “Optimisation of Indoor Mobile B3G Systems Based in
Economic Aspects”, Proc Symposium on Information Theory in the Benelux,
Enschede, Netherlands, Vol. 1, November, 2005.
- Velez, F. J.; C. Franco; R. Rei ; “Optimização do Planeamento Micro-Celular MultiServiço para UMTS Melhorado em Centros de Negócios Citadinos”, Proc Conf. da
- Santos, D.S.; R. Marcos; V.C. Carvalho; R. Costa; F. J. Velez; “Planeamento de
uma Rede Metropolitana sem Fios 802.16e de Banda Larga”, Proc Conf. da
- Santos, D.S.; F. J. Velez; R. Marcos; V.C. Carvalho; “Planning of an IEEE 802.16e
Network for Emergency and Safety Services”, Proc IEE 3G Conf., London, United
Kingdom, Vol. 1, pp. 507 - 511, November, 2005.
-
Correia,
A.;
“Transmission
Power
Saving
Methods
for
Multimedia
Broadcast/Multicast Services in UMTS Networks”, Proc IEE 3G Conf., London, United
Kingdom, Vol. 1, pp. 66 - 70, November, 2005.
-
Correia,
A.;
“Two
QoS
Regions
Packet
Scheduling
for
Multimedia
Broadcast/Multicast Service”, Proc IEE 3G Conf., London, United Kingdom, Vol. 1,
pp. 34 - 38, November, 2005.
4.1.6.5 Transmission And Reception Systems
Book Chapters
- Salema, C.; “Comunicações Móveis: Passado, Presente and Futuro”- Chapter in
Despertar para a Ciência. As Conferências de 2003, Fernando Ramôa Ribeiro and
João Caraça, Gradiva, Lisboa, 2005.
74
Papers in Journals
- Monteiro, F.; A. J. Rodrigues; “Limits for CPM signals representation by Walsh
functions”, Proceedings of the European Microwave Association, Vol. 1, No. 1, pp.
82 - 86, March, 2005.
- Monteiro, F.; A. J. Rodrigues; “Phase error resilience to I/Q mismatch of a
simplified CPM receiver”, IEEE Microwave Wireless and Components Letters, Vol.
15, No. 9, pp. 549 - 551, September, 2005.
- White, G.; J.G. Gil; L. M. Correia; Y. Zakharov; A. Burr; “Time-Reversal SpaceTime Block Coded WCDMA Receiver in Urban and Suburban Environments”, IEE
Proceedings - Communications, Vol. 152, No. 6, pp. 1047 - 1054, December, 2005.
- Marques, P.; J. Dias; “Velocity estimation of fast moving targets using a single
SAR sensor”, IEEE Trans. on Aerospace and Electronic Systems, Vol. 41, No. 1, pp.
75 - 89, January, 2005.
- Correia, A.; M. Silva; “A Decorrelating MUD Approach for the Downlink of UMTS
Considering a RAKE in the Receiver”, Proc IEEE International Symp. on Personal,
Indoor and Mobile Radio Commun - PIMRC, Berlin, Germany, Vol. 1, pp. 356 - 360,
September, 2005.
- Silva, J. C.; N.S. Souto; A. J. Rodrigues; A. Correia; F.C. Cercas; “A L-MMSE DSCDMA Detector for MIMO/BLAST Systems with Frequency Selective Fading”, Proc
IST Mobile Wireless Summit, Dresden, Germany, Vol. 1, pp. 1 - 1, June, 2005.
- Vieira, P.; M. Vieira; A. J. Rodrigues; M.P. Queluz; “A New Realistic Vehicular
Mobility Model for Wireless Networks”, Proc International Symp. on Wireless
Personal Multimedia Communications WPMC, Aalborg, Denmark, Vol. 3, pp. 1805 1809, September, 2005.
- Correia, A.; M. Silva; “A V-BLAST Detector Approach for WCDMA Signals with
Frequency-Selective Fading”, Proc IEEE International Symp. on Personal, Indoor
and Mobile Radio Commun - PIMRC, Berlin, Germany, Vol. 2, pp. 456 - 460,
September, 2005.
75
- Dias, J.; G. Valadão; “Discontinuity preserving phase unwrapping using graph
cuts”,
Proc
Energy
Minimization
Methods
in
Computer
Vision
and
Pattern
Recognition, St. Augustine, United States, Vol. 1, pp. 268 - 284, November, 2005.
- Topa, A.; C. R. Paiva; A. Barbosa; “Electromagnetic Wave Propagation in
Waveguiding
Structures
Containing
DNG
Metamaterials”,
Proc
Conf.
on
Telecommunications - ConfTele, Tomar, Portugal, Vol. 1, pp. 1 - 1, April, 2005.
- Silva, J. C.; N.S. Souto; A. Correia; A. J. Rodrigues; F.C. Cercas; “Enhanced
MMSE Detection for MIMO Systems”, Proc Conf. on Telecommunications - ConfTele,
Lisboa, Portugal, Vol. 1, pp. 1 - 1, April, 2005.
- Silva, J. C.; N.S. Souto; F.C. Cercas; A. Correia; A. J. Rodrigues; “Equalization
Based Receivers for Wideband MIMO/BLAST Systems”, Proc International Symp. on
Wireless Personal Multimedia Communications WPMC, Aalborg, Denmark, Vol. 1,
pp. 1 - 1, September, 2005.
- Vieira, P.; M.P. Queluz; A. J. Rodrigues; “HSDPA Capacity Enhancement using
MIMO in a Pico-cell Environment”, Proc Appl. Computational Electromagnetics
Society Conf. - ACES, Honolulu, United States, Vol. ISBN 0-7803-9068-7, April,
2005.
- Nunes, F.; F. Sousa; J. Silva; J. Leitão; “Hybrid Code Delay Estimator for
GPS/Galileo BOC Signals Using the Innovations Approach”, Proc Conf. on
- Vieira, P.; M.P. Queluz; A. J. Rodrigues; “Improving HSDPA Performance using
MIMO in a UMTS Macro-cell Network”, Proc Conf. on Telecommunications ConfTele, Tomar, Portugal, Vol. ISBN 972-98115-9-8, April, 2005.
- Nunes, F.; F. Sousa; J. Leitão; “Improving Multipath Mitigation in GPS/Galileo BOC
Signals with Gating Functions”, Proc Institute of Navigation Annual Meeting,
Cambridge-Boston, United States, Vol. 1, pp. 498 - 507, June, 2005.
- Silva, J. C.; N.S. Souto; A. Correia; A. J. Rodrigues; F.C. Cercas; “Interference
Suppression
for
High
Speed
Downlink
Packet
Access”,
Proc
Conf.
on
Telecommunications - ConfTele, Lisboa, Portugal, Vol. 1, pp. 1 - 1, April, 2005.
- Silva, J. C.; N.S. Souto; F.C. Cercas; “Iterative MMSE Detection for MIMO/BLAST
DS-CDMA Systems in Frequency Selective Fading”, Proc International Conf. on
AND-Business and Telecommunication Networks, Reading, United Kingdom, Vol. 1,
pp. 1 - 1, October, 2005.
76
- Souto, N.S.; J. C. Silva; F.C. Cercas; “Iterative Turbo Multipath Interference
Cancellation for WCDMA Systems with Non-Uniform Modulations”, Proc IEEE
Vehicular Technology Conf., Stockholm, Sweden, May, 2005.
- Silva, J. C.; N.S. Souto; A. Correia; A. J. Rodrigues; F.C. Cercas; “Link Level
Channel Modeling for High Speed Downlink Packet Access”, Proc Conf. on
- Vieira, P.; M. Vieira; M.P. Queluz; A. J. Rodrigues; “Lisbon mobility simulations for
performance evaluation of mobile networks”, Proc Jornadas de Engenharia de
Telecomunicações e Computadores, Lisbon, Portugal, Vol. 1, November, 2005.
- Vieira, P.; M.P. Queluz; A. J. Rodrigues; “Maximizing Throughput using HSDPA
with MIMO in UMTS Macro-cell Environment”, Proc IEEE Vehicular Technology Conf.,
Estocolmo, Sweden, Vol. ISBN 0-7803-8888-7, May, 2005.
- Sanches, J.; J. Dias; J. S. Marques; “Minimum total variation in 3D ultrasound
reconstruction”, Proc IEEE International Conf. on Image Processing - ICIP, Genova,
Italy, Vol. III, pp. 597 - 600, September, 2005.
- Silva, J. C.; N.S. Souto; A. J. Rodrigues; A. Correia; F.C. Cercas; “MMSE with
Non-Uniform
Modulations
for
a
MIMO/BLAST
System”,
Proc
Conf.
on
- Souto, N.S.; J. C. Silva; F.C. Cercas; A. J. Rodrigues; A. Correia; “Non-Uniform
Constellations for Broadcasting and Multicasting Services in WCDMA Systems”, Proc
IST Mobile Wireless Summit, Dresden, Germany, June, 2005.
- Ribeiro, C.; V. Silva; “On the maximum shortening SNR equalization for xDSL
DMT transceivers”, Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal,
Vol., April, 2005.
- Silva, J. C.; N.S. Souto; F.C. Cercas; A. Correia; A. J. Rodrigues; “Optimum bitmapping for short TCH codes”, Proc International Symp. on Wireless Personal
Multimedia Communications WPMC, Aalborg, Denmark, Vol. 1, pp. 1 - 1,
September, 2005.
- Sousa, F.; F. Nunes; J. Leitão; “Partial Correlation Technique for the Acquisition of
Weak
GPS/Galileo
Signals”,
Proc
Institute
of
Navigation
Annual
Meeting,
Cambridge-Boston, United States, Vol. 1, pp. 543 - 552, June, 2005.
- Silva, J. C.; S.J. Jesus; N.S. Souto; F.C. Cercas; A. Correia; A. J. Rodrigues;
“Partitioned MMSE Receiver for Wideband CDMA Systems”, Proc International
77
Symp. on Wireless Personal Multimedia Communications WPMC, Aalborg, Denmark,
Vol. 1, pp. 1 - 1, September, 2005.
- Dias, J.; G. Valadão; “Phase Unwrapping via Graph Cuts”, Proc Iberian Conf. on
Pattern Recognition and Image Analysis, Cascais, Portugal, Vol., pp. 207 - 214,
September, 2005.
- Dias, J.; G. Valadão; “Phase unwrapping: a new max-flow/min-cut based
approach”, Proc IEEE International Conf. on Image Processing - ICIP, Genova, Italy,
Vol. 2, pp. 77 - 80, September, 2005.
- Riez, M.; J. Dias; “Robust phase unwrapping of MRI-data with the z-step
algorithm”, Proc International Society for Magnetic Ressonance in Medicine-SMRM,
Miami, United States, September, 2005.
- Riez, M.; M.R. Reis; J. Dias; “Robust phase unwrapping of MRI-data with the zstep algorithm”, Proc International Society for Magnetic Ressonance in MedicineSMRM, Miami, United States, September, 2005.
- Riez, M.; J. Dias; “Robust phase unwrapping of MRI-data with the z-step
algorithm”, Proc International Society for Magnetic Ressonance in Medicine-SMRM,
Miami, United States, September, 2005.
- Dias, J.; J. Nascimento; J. M. P. Nascimento; “Signal subspace identification in
hyperspectral linear mixtures”, Proc SPIE - Conference on Image and Signal
Processing for Remote Sensing, Bruges, Belgium, Vol. SPIE-5982, pp. 191 - 198,
September, 2005.
- Souto, N.S.; J. C. Silva; F.C. Cercas; A. J. Rodrigues; A. Correia; “Synchronization
with TCH Codes”, Proc International Symp. on Wireless Personal Multimedia
Communications WPMC, Aalborg, Denmark, September, 2005.
- Silva, J. C.; N.S. Souto; F.C. Cercas; A. J. Rodrigues; A. Correia; “Usage of NonUniform Constellations for a WCDMA MIMO/BLAST MMSE Receiver System”, Proc
International Symp. on Wireless Personal Multimedia Communications WPMC,
Aalborg, Denmark, Vol. 1, pp. 1 - 1, September, 2005.
- Gomes, M.G.; V. Silva; “Vectorized LDPC Decoding on a Floating Point DSP”, Proc
Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol., April, 2005.
78
4.1.7
Other Achievements
4.1.7.1 Patents
•
Abreu, A “Carregador de Bateria de implantes cardíacos”, Portuguese patent
application nº 103374
4.1.7.2 Awards
- Abreu, A.; “Non-invasive platform for rechargement of cardiac implants battery”,
Prémio Engº Jaime Filipe 2005, 31-10-2005.
- Vieira, P.; “Aumento de Capacidade em Redes Móveis de 3ª Geração Usando
Tecnologia MIMO”, Prémio Inovação Jovem Engenheiro 2004 -1º lugar (ex-aequo),
13-10-2005.
4.1.7.3 Miscellaneous
- Costa Freire, J.; “National Delegate”, IEEE Portugal Section”, 31-12-2005.
- Velez, F. J.; “Seminars”, IP Móvel and Redes WiMax - Aplicações da Teoria de
Informação”, Uma organização do projecto MobileMAN, 04-10-2005.
- Caldeirinha, R.F.S.; “Seminars”, Electromagnetic Scattering from folliage and
vegetation”, DL-IT, 13-04-2005.
- Velez, F. J.; “National Delegate”, COST 290 - Traffic and QoS Management in
Wireless Multimedia Networks”, 18-02-2005.
79
4.1.8
Other Contributions
4.1.8.1 Conference Committees
−
11th Asia-Pacific Conference on Communications (APCC 2005), Technical
Programme Committee, António Rodrigues, 16-10-2005
−
1st International Conference on Electrical Engineering, Scientific Committee,
João Costa Freire, 10-10-2005
−
2005 Asia-Pacific Conference on Communications, Scientific Committee,
Fernando J. Velez, 03-10-2005
−
25th EARSeL Symposium, Scientific Committee, José Bioucas Dias, 09-062005
−
2nd Iberian Conference on Image Analysis and Recognition - ICIAR'2005,
Technical Programme Committee, José Bioucas Dias, 07-09-2005
−
3as Jornadas de Engenharia de Electrónica and Telecomunicações and de
Computadores
(JETC'05),
Technical
Programme
Committee,
António
Rodrigues, 17-11-2005
−
3as Jornadas de Engenharia de Electrónica, Telecomunicações and de
Computadores (JETC2005), Organizing Committee, Paulo Marques, 17-112005
−
Conftele
2005-
5th
Conference
on
Telecommunications,
Organizing
Committee, Custódio Peixeiro, 06-04-2005
−
5th Conference on Telecommunications, Organizing Committee, Pedro
Santos, 06-04-2005
−
8th International Symposium on Wireless Multimedia Communications
(WPMC'05), Technical Programme Committee, António Rodrigues, 15-092005
−
9th IEEE International Conference on Emerging Technologies and Factory
Automation, Scientific Committee, Paulo Marques, 16-11-2005
−
Asia-Pacific Conference on Communications 2005, Technical Programme
Committee, Francisco Cercas, 15-02-2005
80
−
Conftele
2005-
5th
Conference
on
Telecommunications,
Conference
Chairman, Rafael Caldeirinha, 06-04-2005
−
Engenharia 2005 - Inovação and Desenvolvimento, Scientific Committee,
−
International Conference on AND-Business and Telecommunication Networks
(ICETE-2005), Technical Programme Committee, António Rodrigues, 16-102005
−
International Conference on Image Analysis and Recognition - ICIAR'2005,
Technical Programme Committee, José Bioucas Dias, 28-09-2005
−
IV
Encontro
Ibérico
de
Electromagnetismo
Computacional,
Scientific
Committee, José Rocha Pereira, 07-09-2005
−
Lecture Series on Advanced Radar Signal and Data Processing, Organizing
Committee, Paulo Marques, 23-06-2005
−
XIVèmes Journées Nationales Microondes, Scientific Committee, João Costa
Freire, 11-05-2005
4.1.8.2 Editorial Committees
−
Guest Editor Transactions on Microwave Theory and Techniques, IEEE, Nuno
Carvalho, Guest Editor, 01-09-2005 to 01-09-2006
4.1.8.3 Refereeing
−
11th Asia-Pacific Conference on Communications in 2005, Perth, Western
Australia, Rafael Caldeirinha, 03-10-2005
−
Conftele 2005- 5th Conference on Telecommunications, Pedro Santos, 0604-2005
−
Associate Editor, IEEE Trans. on Microwave Theory and Techniques, José
Carlos Pedro, 01-07-2005
−
Conftele 2005 - 5th Conference on Telecommunications, Carlos Sá da Costa,
06-04-2005
81
−
Conftele 2005 - 5th Conference on Telecommunications, António Alves
Moreira, 06-04-2005
−
Conftele 2005 - 5th Conference on Telecommunications, João Vaz, 06-042005
−
Conftele 2005 - 5th Conference on Telecommunications, Afonso Barbosa,
04-01-2005
−
ConfTele´05 - 5th Conference on Telecommunications, Tomar, Fernando J.
Velez, 06-04-2005
−
ConfTele´05 - 5th Conference on Telecommunications, Tomar, Portugal,
Apr. 2005., Fernando J. Velez, 06-04-2005
−
Conftele 2005- 5th Conference on Telecommunications, Rafael Caldeirinha,
31-01-2005
−
ConfTele05 - Conference on Telecommunications 2005, Rafael Caldeirinha,
06-04-2005
−
Conftele 2005 - 5th Conference on Telecommunications, Custódio Peixeiro,
15-01-2005
−
Electronics and Telecommunication Research Institute Journal (ETRI), João
Vaz, 01-03-2005
−
Engenharia 2005 – Inovação and Desenvolvimento, Universidade da Beira
Interior, Covilhã, Nov. 2005., Fernando J. Velez, 20-11-2005
−
European Microwave Conference, Afonso Barbosa, 02-04-2005
−
European Microwave Week, Custódio Peixeiro, 05-04-2005
−
European Transactions on Communications, Francisco Cercas, 15-02-2005
−
European Transactions on Telecommunications, Custódio Peixeiro, 14-032005
−
European Transactions on Telecommunications, Custódio Peixeiro, 07-112005
−
European Transactions on Telecommunications, 2005., Fernando J. Velez,
24-11-2005
−
ICC2006, Custódio Peixeiro, 07-11-2005
−
ICECOM2005, Custódio Peixeiro, 15-07-2005
−
IEE Electronics Letters, Jerzy Guterman, 26-02-2005
−
IEE Electronics Letters, Custódio Peixeiro, 05-09-2005
−
82
−
−
IEE Electronics Letters, Custódio Peixeiro, 27-05-2005
−
−
−
IEEE - Transactions on Antennas and Propagation, Carlos Paiva, 04-08-2005
−
IEEE Communications Magazine, Francisco Cercas, 18-02-2005
−
IEEE
ComSoc/SBrT
Joint
Issue
of
the
Journal
of
the
Brazilian
Telecommunications Society, 2005., Fernando J. Velez, 16-06-2005
−
IEEE ICC 2006 - International Conference on Communications, Francisco
Monteiro, 19-10-2005
−
IEEE Microwave and Wireless Components Letters, António Topa, 30-072005
−
IEEE Microwave and Wireless Components Letters, Custódio Peixeiro, 28-032005
−
IEEE Microwave and Wireless Components Letters, Nuno Carvalho, 01-012005
−
IEEE
SoftCom’
2005
-
2005
International
Conference
on
Software,
Telecommunications and Computer Networks, Split, Croatia, Sep. 2005.,
−
IEEE Transactions on Antennas and Propagation, Afonso Barbosa, 15-092005
−
IEEE Transactions on Antennas and Propagation, Rafael Caldeirinha, 01-012005
−
IEEE Transactions on Antennas and Propagation, Afonso Barbosa, 17-112005
−
IEEE Transactions on Microwave Theory and Techniques, Nuno Carvalho, 1602-2005
−
IEEE Transactions on Microwave Theory and Techniques, Afonso Barbosa,
15-12-2005
−
IEEE Transactions on Microwave Theory and Techniques, Afonso Barbosa,
23-11-2005
−
IEEE Transactions on Microwave Theory and Techniques, Custódio Peixeiro,
07-11-2005
83
−
IEEE Transactions on Microwave Theory and Techniques, Paulo Monteiro, 2411-2005
−
Session Chair of XX Conference on Design of Circuits and Integrated
Systems, Lisboa, Portugal, Outubro 2005., João Vaz, 10-11-2005
−
IST Mobile & Wireless Communications Summit, Francisco Cercas, 18-022005
−
ISWCS 2005 - 2nd International Symposium on Wireless Communication
Systems, Siena, Italy, Sep. 2005., Fernando J. Velez, 05-09-2005
−
Jornadas de Eng. Elec. and Telecomunicaçoes 2005, Custódio Peixeiro, 1706-2005
−
Journées Nationales Microondes, João Costa Freire, 11-05-2005
−
Kluwer Wireless Personal Communications Jornal, Francisco Monteiro, 1103-2005
−
Optics Express, Fernando Tim Tim Janeiro, 08-08-2005
−
PIMRC’ 2005-16th IEEE International Symposium on Personal, Indoor and
Mobile Radio Communications, Berlin, Germany, Sep. 2005., Fernando J.
Velez, 11-09-2005
−
VTC’ 2005 - Vehicular Technology Conference Spring’ 2005 Wireless Access,
Stockholm, Sweden, June 2005., Fernando J. Velez, 01-06-2005
−
Wireless Personal Communications Journal, Francisco Cercas, 18-02-2005
−
XX Conference on Design of Circuits and Integrated Systems, João Vaz, 1011-2005
84
ANNUAL REPORT 2005 – OPTICAL COMMUNICATIONS
4.2 Optical Communications
4.2.1
Coordinators
•
Adolfo Cartaxo
•
José Ferreira da Rocha
4.2.2
Human Resources
4.2.2.1 Overview
Degree
Aveiro
Coimbra
Lisboa
Full Professor
2
0
0
Associate Professor
1
1
3
Assistant Professor
5
0
3
Post. Doc.
2
0
0
Assistant Lecturer
0
1
0
PhD Student
7
2
6
MSc Student
4
2
0
Graduate
7
1
0
28
7
12
TOTAL
Table 16 – Overview of human resources in the Optical Communications Area
85
Name
Degree
Position
Group
João Lemos Pinto
Agregação
Full Professor
OC - Av
José Ferreira da Rocha
Agregação
Full Professor
OC - Av
Adolfo Cartaxo
Agregação
Associate Professor
OC - Lx
Artur Lopes Ribeiro
Agregação
Associate Professor
EOC- Lx
Jorge Torres Pereira
Agregação
Associate Professor
EOC- Lx
Carlos Ferreira Fernandes
Agregação
Assistant Professor
EOC- Lx
Henrique José A. Silva
PhD
Associate Professor
OC - Co
Paulo Monteiro
PhD
Associate Professor
OC - Av
António Teixeira
PhD
Assistant Professor
OC - Av
Armando Nolasco Pinto
PhD
Assistant Professor
EOC- Av
João Lopes Rebola
PhD
Assistant Professor
OC - Lx
João Pires
PhD
Assistant Professor
OC - Lx
Manuel Violas
PhD
Assistant Professor
OC - Av
Mário Lima
PhD
Assistant Professor
OC - Av
Rui Sousa Ribeiro
PhD
Assistant Professor
OC - Av
Paulo André
PhD
Post. Doc.
EOC- Av
Rogério Nogueira
PhD
Post. Doc.
EOC- Av
Table 17 – Permanent Collaborators working in the Optical Communications Area
86
Name
Degree
Position
Group
João da Silva Pereira
MSc
Assistant Lecturer
OC - Co
Adão Silva
MSc
PhD Student
OC - Av
Daniel Trindade Fonseca
MSc
PhD Student
OC - Lx
José Morgado
MSc
PhD Student
OC - Lx
Luís Cancela
MSc
PhD Student
OC - Lx
Luís Carlos Gonçalves
MSc
PhD Student
OC - Av
Mário Rui Leiria
MSc
PhD Student
OC - Lx
Meire Fugihara
MSc
PhD Student
OC - Av
Natasa Pavlovic
MSc
PhD Student
OC - Lx
Ruben Soares Luis
MSc
PhD Student
OC - Av
Telmo Fernandes
MSc
PhD Student
OC - Co
Ana Patrícia S. Ferreira
Licenciatura
PhD Student
OC - Av
Miguel Ângelo Madureira
Licenciatura
PhD Student
OC - Av
Paulo Jorge Marques
Licenciatura
PhD Student
OC - Av
Marek Hajduczenia
Licenciatura
PhD Student
OC - Co
Sérgio Junior
Licenciatura
PhD Student
OC - Av
Filipe Alves
Licenciatura
MSc Student
OC - Av
87
Name
Degree
Position
Group
João Manuel Pedro
Licenciatura
MSc Student
OC - Lx
Joaquim l. C. S. Bastos
Licenciatura
MSc Student
OC - Av
Luis M. Ribeiro Teixeira
Licenciatura
MSc Student
OC - Av
Mário Reis
Licenciatura
MSc Student
OC - Co
Nelson Jesus C. Muga
Licenciatura
MSc Student
EOC- Av
Silvia Medeiros Vaz Pato
Licenciatura
MSc Student
OC - Co
António Jorge Morgado
Licenciatura
Graduate
OC - Av
Artur Oliveira Pereira
Licenciatura
Graduate
OC - Av
José Eduardo S. Machado
Licenciatura
Graduate
OC - Av
José Miguel Santos
Licenciatura
Graduate
OC - Av
Ricardo Gonçalves Oliveira
Licenciatura
Graduate
OC - Co
Teresa Almeida
Licenciatura
Graduate
EOC- Av
Tiago Silveira
Licenciatura
Graduate
OC - Av
Table 18 – Non-permanent Collaborators working in the Optical Communications Area
88
4.2.3
Summary of Research Achievements
In the following, the achievements in the Optical Communications area are
grouped, under three sub-areas:
- Optical Components and Subsystems
- Optical Communication Systems
- Optical Networking.
4.2.3.1 Optical Components And Subsystems
The work carried out in this sub-area concentrated on the modeling, performance
evaluation, optimization and implementation of key components and subsystems
for all-optical networks.
In order to ensure a stable single longitudinal mode operation, a comparative
analysis of several modified distributed feedback (DFB) structures was carried out
in 2004, using the transfer matrix method. During 2005, the simulation models
using matrix techniques have been applied to the analysis and structural design of
modified DFB laser structures, namely those with several phase-shift discontinuities
along the gratings which are associated with non-uniform coupling strengths.
Still in the sub-area of optical sources, work was carried out on the study and
modeling of semiconductor lasers for utilization on coarse wavelength division
multiplexing (CWDM) networks. The implementation of these systems requires
accurate models to predict the optical channel behavior. The strong temperature
dependence of the laser parameters motivated the development of comprehensive
thermal models, to accurately describe the laser dynamics. During 2005, we have
developed a thermal parameter extraction method for semiconductor lasers, which
allows the accurate analysis of the operating conditions, providing a useful and
comprehensive tool to quantify the tolerances of devices used in CWDM networks.
During 2005 the analysis and simulation of PIN and APD photodiodes continued.
The simulation tools previously implemented have been adapted to the analysis of
the frequency response of PIN devices with an arbitrary electric field profile. The
89
simulation results agree well with the experimental ones. This work enabled us to
investigate the effects of doping concentration and bias voltage on the frequency
response of these structures. The bandwidth is seen to be dependent on bias and
doping concentration only for devices with large absorption region widths. In this
case, the bandwidth increases when the bias voltage increases and the doping
concentration decreases. These results may be explained in terms of the velocityfield relations for electrons and holes and of the electric field profile in the
absorption region.
In the field of doped fibers for optical amplifier implementation we have continued
our collaboration with Instituto de Química de Araraquara, Brazil. As a result, we
have tested rare earth doped optical fibers produced in Araraquara. Preliminary
tests show a stabilization of the drawing process, producing silica fibers doped with
erbium and tellurium with optical emission in the C and L spectral bands. These
results can have a potential impact in our work on broadband optical amplification.
The use of Raman amplification in CWDM systems was assessed and the results so
far obtained show that Raman amplification can be used to increase the reach of
these systems. We are working now on the optimization of the Raman amplification
scheme.
Several schemes with multiple pumping and cascaded Raman effect were studied in
order to get optimized Raman amplification for long and/or high splitting ratios
passive optical networks (PONs). The effect of Rayleigh scattering in fibers when
high power is inserted was modeled and tested in the lab, and this property
together with fiber Bragg gratings (FBGs) was used to achieve C+L+U band
amplification based on a single E-band pump.
Various types of FBG written on Ge doped fibers were produced in order to compare
the evolution of their characteristics with accumulated fluency. The study included
also the variation of spectral characteristics with temperature.
A FBG specially tailored for CWDM systems has been implemented, and used for an
optical add-drop multiplexer (OADM) prototype. The produced FBG was chirped and
90
had an optical bandwidth of 9 nm, which is smaller than the bandwidth specified by
ITU for the optical filter to be used in CDWM networks. However, with the new FBG
recording system to be implemented in the near future in our laboratories, we are
confident of achieving the 13 nm bandwidth required by ITU.
Since many devices studied in our group are based on fiber FBG structures, we
have developed a method to spatially characterize them. It is based on the analysis
of the reflection spectrum of the structure, when submitted to local pressure. It is a
relatively low cost method but still with enough resolution for the spatial
characterization of complex FBG structures. The resolution can be selected by
choosing the radius of a tip and the force applied to the fiber. The method was
tested in the spatial characterization of an uniform Bragg grating, a fiber optical
cavity and a chirped grating. In all measurements, the results were in conformity
with the expected values. Additionally, the method can also be used for the
characterization of superstructured fibers or of optical code division multiplexing
coders/decoders.
Preliminary experimental studies have been made on integrated optics: Bragg
gratings have been recorded and characterized in LiF crystals and in organic /
inorganic hybrids prepared by sol-gel. The latter material has been also used for
building optical waveguides with different widths.
We have also started studies on highly non linear bismuth optical fiber. Relevant
parameters of this fiber type are being studied and their impact on the main
envisaged application (wavelength conversion) has been modeled and evaluated.
In the topic of quantum optics we have been able to work in the laboratory with
signals with a low number of photons. We aim to use this laboratory setup to study
quantum noise in the context of Raman amplification.
In the sub-systems area, we performed the analysis, comparison and development
of several optical single sideband (OSSB) transmitters for various electrical
signaling formats. The transmitters range from conventional up to an adaptive
91
opto-electrical filter based on a phase modulator for 10 and 40 Gbit/s transmission
systems.
Optical add-drop multiplexers for transparent optical networks, based on arrayed
waveguide gratings (AWG), were optimized taking into account AWG fabrication
errors.
Wavelength conversion devices are becoming a key element especially in complex
networks using architectures with non-blocking nodes. Four-wave mixing (FWM) is
a promising phenomenon to achieve this goal. In this topic, the work focused on
devices specially tailored for systems employing the OSSB format. The study of alloptical wavelength converter based on FWM in dispersion-shifted fibers at 10 Gbit/s
provides guidelines for the utilization of these very promising technologies in the
implementation of the future high bit rate all-optical networks.
4.2.3.2 Optical Communications Systems
Advanced modulation formats were studied from various points of view. This area
of research included investigation of the performance of alternate mark inversionreturn to zero and optically filtered SSB signals in 40 Gbit/s transmission systems.
Also bandwidth-limited duobinary coding formats were optimized for ultra dense
wavelength division multiplexed (WDM) systems and preliminary results were
obtained for a novel signaling format and for bandwidth-limited DPSK formats,
when used in ultra dense WDM systems at 40 Gbit/s per channel.
Various RZ to NRZ conversion schemes based on semiconductor optical amplifiers
(SOA), gain clamped (GC) SOAs and complex structures with saturable absorbers,
were studied. Converters of picosecond pulses to NRZ 10 Gbit/s or even 2.5 Gbit/s
were developed, demonstrating pulse expansion by a factor of more than 50. This
is a very important new feature for very high speed all-optical time domain
multiplexing (OTDM) demultiplexers, rate and format adapters.
The dynamics of SOAs and GC-SOAs has been modeled which allowed the
development of several advanced features exploiting, for example, cross gain
92
modulation (XGM) bandwidth expansion with resort to optical filtering of the blue
components and all-optical double sideband to OSSB format conversion.
Chromatic
dispersion
in
nondispersion-shifted
fibers
significantly
limits
the
transmission distance in optical systems operating at data rates in the range of 10
Gbit/s or higher, per (WDM) channel. Given the large quantity of nondispersionshifted fiber currently installed in telecommunication networks, overcoming this
limitation has become a very important scientific and commercial goal. One of the
most promising techniques to overcome the dispersion limit uses OSSB signals. In
close collaboration with Siemens S.A, we have demonstrated for the first time
OSSB transmission at 40 Gbit/s. A key component to implement the OSSB
transmitter is the Hilbert filter (HF), used to obtain the 90º phase shift of the binary
data spectrum. This has been implemented using a very broadband hybrid coupler,
based on a multi-layer multi-section structure with a -3 dB pass-band from 3 GHz
to 37 GHz, especially designed by Institute of Telecommunications for this type of
application. This was the first time that a hybrid coupler with this bandwidth and
center frequency was produced.
In close collaboration with PT Inovação and Siemens S. A., electrical dispersion
compensation (EDCs) equalizers, with the capacity to mitigate the optical fiber
dispersion and other impairments at 10 Gbit/s and 40 Gbit/s, were investigated.
Novel signal processing circuits in microwave monolithic integrated circuit (MMIC)
technology
performed
were
on
an
investigated
OSSB
and
developed.
transmission
system,
Experimental
measurements
operating
40Gbit/s
at
and
incorporating these EDCs, show considerable receiver tolerance to chromatic
dispersion exceeding 270 ps/nm. Transmission span increase was also obtained for
10 Gbit/s, by using all-optical transparent format converter to optical vestigial side
band (OVSB), based on a SOA.
In the field of chromatic dispersion compensation, we have also studied the
efficiency of two alternative electrical dispersion compensation strategies, at the
transmitter side or at the receiver side, for several coding formats and pulse
shapes, in OSSB systems.
93
A tunable chromatic dispersion compensator based on chirped FBG has been
studied, designed and implemented, to improve the performance of a 10 Gbit/s
optical fiber communication system. The compensation tunability is achieved by
applying
temperature
gradients
along
the
grating
longitudinal
axis.
The
compensator impact on the system performance was experimentally appraised. The
results show a BER improvement of 3 orders of magnitude for a 20 km link.
Further work was done on the subject of performance comparison of optical and
electrical dispersion compensation techniques in terms of timing jitter. A new
expression for timing jitter after the photo-detector was derived, using frequencydomain analysis. It shows that timing jitter depends cubically on link length when
dispersion is compensated in the electrical domain. In contrast, when dispersion is
fully compensated optically, timing jitter depends only linearly on the link length.
The validity of the new expression was validated with simulation results.
Polarization mode dispersion (PMD) can also have a significant impact on the
performance of systems working at rates above 40 Gbit/s per WDM channel. To
help in the evaluation of PMD effects on optical networks, a new scheme for PMD
emulation, based on fiber-coil polarization controllers, was proposed. Simulation
results show that accurate PMD statistics can be obtained with a moderate number
of coils. A new model for first and second order PMD in single mode optical fibers
was also developed.
To mitigate the influence of PMD, we have developed a new technique to induce a
tunable relative group delay between the orthogonal propagation modes. This is
achieved by applying different thermal gradients in an uniform Bragg grating
written in a HiBi fiber. The results show that the method can be used in a tunable
device for PMD mitigation.
In the area of performance evaluation, we have developed a simplified approach for
the assessment of optical communication systems performance with polarization
dependent loss and arbitrary optical filtering. Analysis of intensity-dependent and
data-dependent phase-matching effects on four-wave mixing in multi-span dense
WDM systems, with non-uniform fiber dispersion, was accomplished.
94
Performance monitoring is important for the practical management of optical
systems and networks. In this context, a novel technique to evaluate the optical
signal to noise ratio (OSNR) using asynchronous histograms was developed.
Experimental validation of this technique was realized. Measurement errors lower
than 1 dB were achieved for OSNR values below 32 dB. The proposed technique has
been also validated for cases where the monitored signal presents significant
dispersion-induced distortion, without significant loss of accuracy. The principal
limitations of the proposed technique were also investigated. Future work involves
monitoring of interferometric crosstalk and chromatic dispersion.
4.2.3.3 Optical Networking
Research has been pursued on the topic of PONs. The main objectives of this topic
of research are 1) to contribute for the standardization effort in Ethernet PONs
(EPONs), 2) to produce specifications for the transmission interfaces required to
increase the data rate in EPONs, and 3) to develop new QoS and security
algorithms for EPONs.
In the scope of first objective, it is expected to produce a proposal for a “nextgeneration” or “enhanced” EPON (EEPON), employing a combination of TDM and
CWDM, by exploring the applicability of emerging polymer-based passive and active
photonic devices. Several possible solutions are under evaluation.
The second objective is to specify the physical layer for an EPON operating at 10
Gbit/s. A detailed simulator was developed to assist in the design and specification
of the critical devices and subsystems in the PHY layer.
The third objective is motivated not only by the need to improve QoS and security
in EPONs, but also by the possibility of improving its transmission efficiency. A self
similar traffic generator based on the SAA algorithm has been developed, including
line load control mechanisms. This is used to feed an EPON distributed,
multithreaded and parallelized simulator, targeting realistic simulation of all EPON
layers above PHY, including LinkSec security mechanism, MPCP protocol, etc.
95
Research was also carried out on (1) Node Architectures, (2) Traffic Measures, (3)
Scalability of Switches and (4) Performance assessment for Optical Burst Switching
(OBS) networks.
The objective of the work on (1) was to develop device models and a simulation
methodology for performance evaluation of several architectures proposed in the
literature, in order to choose a particular solution for a demonstrator. Within this
framework, a simulator has been built and is now being used for performance
studies.
Concerning (2), a traffic simulator and a set of measures based on parameters
describing the network topology and type of traffic were developed and examined
for various simulation scenarios (topologies, loads, etc.).
In relation to (3), an analytical rigorous formulation to analyze the impact of
multiple in-band crosstalk in the performance of direct detection DPSK receivers
was developed and used afterwards to compute the scalability of optical burst
switches using DPSK modulated payloads.
Concerning (4), a framework for evaluating the performance of OBS networks,
comprising a network simulator and an analytical treatment was developed.
Exploring work on algorithms for wavelength assignment in OBS networks was also
accomplished.
The problem of topology optimization for multi-layer optical networks can be solved
by using either exact or heuristic algorithms. The first is usually only used for small
networks because the complexity and the demand for computational resources
increase exponentially with the number of nodes in the network. The heuristic
approach does not lead to the optimal solution, but it is usually simpler and faster.
In this context, we have developed semi-analytical tools allowing us to achieve a
balance between the required computational resources and accuracy of the
optimum solution, in the treatment of large network cases. We expect to extend
the formulation and to obtain less time consuming solutions in the near future.
96
A network simulator to evaluate the impact of physical impairments on the blocking
performance of a WDM ring network under dynamic traffic was also designed and
developed.
Studies on optical labeling for IP-over-WDM networks were also performed. A new
spectrally efficient optical label insertion/extraction scheme using the adaptive
OSSB filter was proposed and experimentally demonstrated, and its performance
was assessed in 40 Gbit/s transmission along non-dispersion shifted fiber. Further
studies on the combined ASK/FSK modulation scheme for optical labeling have been
also performed. During 2005, the activities centered on the study and development
of
an
equalization
method,
implemented
with
reshaping
filters.
We
have
experimentally demonstrated a 3 dB improvement on the eye diagram opening for
the ASK signal, by adopting a reshaping filter based on FBGs.
In the area of free space optical transmission the activities focused on the
consolidation of the transmission model to be used in a optical communication
simulator. Preliminary studies have been carried out in order to evaluate the
utilization of atmospheric dispersive UV links, for sensors networks.
Radio over fiber is a re-emerging field, and studies are concentrating on the
transmission of 3G signals over multiple access passive optical networks.
A new polarization assisted method for the implementation of Multiwavelength
Optical Orthogonal Codes for Optical Code Division Multiple Access (OCDMA)
networks has been proposed and studied. This method is based on fiber Bragg
gratings written in highly birefringent fibers. The advantages of the technique
include the reduction of the interference between users and the reduction of the
number of coders and decoders needed.
An important research domain relates to the development of all-optical processing
nodes, which are able to deal with the basic functionalities of routing. Such
functions include all-optical address lookup, all-optical packet switching based on
optical correlation processing, and collision avoidance at the output by activating
97
wavelength conversion or using the optical delay line approach. An all-optical switch
setup, based on XGM and FBGs, has already been implemented and tested for high
data rate packets (40 Gbit/s).
Also, multiple wavelength conversion (1 to many, and many to many) targeting
advanced functionalities in optical nodes like buffering and switching, has been
realized and tested for high speed signals, comparing several techniques, like XGM
and FWM. Good results have been obtained in a 1 to 3 wavelength conversion using
both methodologies.
98
4.2.4
Running Projects
4.2.4.1 Overview
Funding Agency
Number
AdI
3
ESF
1
EU, IST Programme
1
FCT / POCI
1
FCT / POSC
4
FCT / POSI
1
Internal
1
IT / LA
2
PT Inovação
1
SIEMENS SA
1
SIEMENS SA / AdI
3
TOTAL
19
Table 19 - Number of active projects in the Optical Communications Area in 2005
99
Acron / Ref
Title
SUPRESSOR
All Optical Side band SUPRESSOR based on SOA’s to operate at
40GBit/s
Descript.
Demonstration of an active all-optical double side band to single side
band suppression device wavelength transparent.
Acron / Ref
Title
AIPO
Analysis of Intensity-dependent Phase-matching effects on four-wave
mixing in Optical fibre communications
Descript.
1) To assess the validity of a previously proposed expression for the
intensity-dependent phase-matching effects on four-wave mixing in
optical fibre communications under general circumstances (e. g.
arbitrary fibre type and length) 2) To propose alternative expression
for the description of the intensity-dependent phase-matching effects
on four-wave mixing in optical fibre communications.
Acron / Ref
CONPAC / POSC/EEA-CPS/61714/2004
Title
CONtention free all-optical PACket switch (CONPAC)
Descript.
The project focuses on the design, optimization and demonstration of
an all-optical packet switch, with a fixed length routing table (2 ports),
transparent
to
short
packets,
at
high
data
rate
(40Gbit/s),
implementing a simple contention resolution strategy. Its potential
impact on both the present and future networks will also be assessed.
The main driver of the optimization activities will be to achieve the
best
possible
integrability
of
balance
these
between
devices,
simplicity,
since
these
performance
are
critical
and
issues.
100
Specifically, we aim to demonstrate a small packet switch, with a
minimal routing table (2 ports) which is by looking for three main
building blocks: 1. correlator and code; 2. switching device; 3. delay
line or wavelength converter. The starting points: 1. time/wavelength
codes with optical Fiber Bragg Gratings; 2. cross gain modulation of a
SOA; a UNI gate; and a SOA based Mach-Zehnder interferometric
gate. 3. fiber spool, self pumped FWM converter .
Acron / Ref
ROPE
Title
Ethernet Passive Optical Networks
Descript.
Investigation of new mechanisms for enhanced protection, security
and dynamic bandwidth management for the next generation of
EPONs.
Acron / Ref
IP over WDM / POSC/EEA-CPS/59566/2004
Title
Integration Strategies for IP over WDM Networks
Descript.
The main objectives of this project are: -To evaluate different
transport network alternative approaches namely: IP/SDH/WDM,
IP/WDM and IP/OTN. These configurations will be evaluated in terms
of
cost
effectiveness,
management
facility,
reconfigurability,
scalability, QoS performance, and reliability; -To identify fast and
efficient survivability schemes for IP/WDM and IP/OTN networks; -To
investigate
the
impact
of
different
signalling
schemes
on
the
restoration time of IP over WDM networks and how these signalling
schemes fit into the GMPLS and ASON control plane; -To identify
solutions to provide service differentiation on IP optical networking; To define experiments to assess the Project results and design a testbed for future evaluation. To accomplish theses objectives the project
is organized in four tasks: Task 1- Evaluation of backbone architecture
101
for IP optical networking; Task 2- Survibability schemes; Task 3Differentiated QoS; Task 4-Test-bed design.
Acron / Ref
Title
E-Photon I / FP6-001933
Optical
Networks:
Towards
Bandwidth
Manageability
and
Cost
efficiency
Descript.
The proposed Network of Excellence (NoE) aims at integrating and
focusing
the
rich
know-how
available
in
Europe
on
optical
communication and networks, both in universities and in research
centres of major telecom manufacturers and operators. The set of
available expertises ranges from optical technologies, to networking
devices, to network architectures and protocols, to the new services
fostered by photonic technologies. The NoE will contribute to the
Strategic Objective “Broadband for All”, with a particular focus
(quoting from the EC IST 2003-2004 Workprogramme at page 15) on
“low
cost
access
equipment”,
on
“new
concepts
for
network
management, control and protocols”, and on “increasing bandwidth
capacity in the access network as well in the underlying optical
core/metro network (including in particular optical burst and packet
switching)”. The main technical focus of the NoE is to show which are
the potential advantages of optical technologies in telecommunication
networks with respect to electronic technologies. A strong integration
among the participants to the NoE will favour a consensus on the
engineering choices towards the deployment of costeffective optical
technologies in networking that will support the future Internet,
hopefully providing inputs to the standardization bodies and guidelines
to the operators, as well as competitive advantages to European
telecom
equipment
manufacturers.
Integration
will
be
pursued
primarily by establishing long-term collaborations among partners in
terms of research, of infrastructures sharing, and of education and
training. The main instruments to achieve these long- lasting
102
collaborations are the regular exchange of researchers between
partners, and the development of joint teaching programs and events.
Dissemination will be pursued by means of coordinated publication
activities, offerings of training programs, organization of technical
events, and interactions with other consortia in the same technical
area. Research activities will mainly be carried out in research
programs external to the NoE, both at the national and at the
European levels. Well focused technical research programs will be
activated internally to the NoE.
Acron / Ref
ConvOCO
Title
Wavelength Optical Conversion
Descript.
Project in consortium with Siemens SA, which aims to develop
techniques for optical performance monitoring, for each channel of a
multi
wavelength
optical
communications
system,
based
in
measurable physical properties. We intend also to study, simulate and
implement a optical wavelength conversion module. Both physical
functions should be capable to process and analyse optical intensity
modulated signals with a 10 Gbit/s bitrate. Both functions will be
integrated in a late prototype, where the developed functionalities will
be demonstrated. The developed functionalities are in agreement with
the needs of the future photonic networks, where the processing and
analysis of the signals will be realized completely in the optical
domain.
Acron / Ref
OreO / POCI/CTM/59075/2004
Title
Organic/Inorganic hybrids for Integrated Optics
Descript.
a) To investigate sol-gel derived OIH, such as di-ureasils, diurethanesils, di- and mono-amidasils, and aminosils combined with
103
photopolymerizable MAPTMS host as material substrate for production
of IO architectures b) To investigate the influence in the OIH PL
features of chemical factors such as, organic and inorganic precursors,
number and type of linkages and synthesis method c) To investigate
the chemical-physical nature of the RT OIH PL features d) To compare
by waveguide numerical simulation methods the relevant properties
for optical, electrical or thermal actuation (nonlinear refractive index,
thermo-optic and electro-optic coefficients) of the OIH with those
typical of subtract materials used nowadays, silica, silicon, lithium
niobate, polymers, glass or III-IV semiconductors e) Fabrication of
planar waveguides with the proposed OIH f) To implement enabling
solutions for future high debit optical networks, such as narrow band
optical filter and low finesse optical cavities.
Acron / Ref
Title
PMD / POSI/CPS/47389/2002
Polarization Mode Dispersion in High-Speed Optical Communication
Systems
Descript.
The first goal of the project is to identify the modulation schemes
that best tolerate a certain level of PMD at 40 Gbit/s and above. The
second objective is to develop a dynamic PMD compensator.
Polarization-mode dispersion (PMD) is a key limiter in the deployment
of optical systems transmitting at 40 Gbit/s or higher bit rates per
channel. Fiber-based PMD is caused by an asymmetry of the fiber
core, in which light polarized in one axis travels faster than light
polarized in the other orthogonal axis. This asymmetry of the fiber
core can be accidentally introduced in the manufacturing process,
and is a permanent feature of the fiber, or can be due to external
effects as temperature variations or mechanical stress.
104
Acron / Ref
Quantum
Title
Quantum Effects in High Speed Optical Communication Systems
Descript.
The major goal of the Quantum project is to start a systematic
investigation
of
quantum
systems
at
the
Institute
of
Telecommunications. The aim of these studies is to develop accurate
theoretical
models,
which
allow
experimental
manipulation
of
quantum systems. The project is going to focus is research in
quantum
processes
with
likely
great
impact
in
the
field
of
telecommunications, mainly in the area of optical communications.
Acron / Ref
RaTON
Title
Radio Techniques over Optical access Networks
Descript.
- study the advantages and disadvantages of this type of approach
with respect to others like Optical CDMA, traditional Radio Over Fiber,
and simple FTTH direct modulated distribution through ATM or other
time or wavelength multiplexed networks - study the implementation
scenarios for this technology through the determination of its
fundamental limitations in the pursued scenario (namely due to
dispersion and nonlinear effects) - Implementation of a field trial
demo using adapted common terminals based on a radio repeater. Expandability options for having flexible bandwidth through the
choice of codes, expansion of the network through wavelength
division multiplexing or polarization division multiplexing, observation
of new receiver options and techniques adapted to the particular nonlinear transmission medium.
105
Acron / Ref
Raman
Title
Raman Amplification for CWDM Systems
Descript.
Development of an optical amplifier, with very broad bandwidth,
suitable to be used in coarse wavelength division multiplexing
systems (CWDM).
Acron / Ref
SHOTS / POSC/EEA-CPS/56959/2004
Title
Super High-capacity Optical Transmission Systems
Descript.
1) Proposal of a new signalling format for UDWDM systems; 2)
Comprehensive study of optical single sideband formats for UDWDM
systems; 3) Study of differential phase shift keying-based signalling
formats for UDWDM systems; 4) Generalisation of previous analysis
of
cross-phase
modulation
induced
degradation
in
dispersion
compensated intensity modulation – direct detection (IM-DD) DWDM
systems; 5) Extension of a previous analytical theory of four wave
mixing in dispersion compensated IM-DD DWDM systems; 6)
Generalisation of a previous analytical theory of stimulated Raman
scattering in dispersion compensated IM-DD DWDM systems; 7)
Development and application of a general analytical tool to recognise
and minimise the limitations of nonlinear fibre effects in dispersion
compensated DWDM systems with arbitrary parameters and high
(tens) channel count.
Acron / Ref
ARPA / POSC/EEA-CPS/55781/2004
Title
Techniques and Algorithms for Raman Multi-Pump Allocation
Descript.
The project focuses on the feasibility to design low cost, flat gain, as
high spectral wide fiber Raman amplifiers. In the first year of work,
we will develop a first version of an algorithm that enables the
106
optimization of wavelength allocation and output power of the pump
lasers. This task will be finished during the second year of the
project, where a precise and robust allocation algorithm will be
presented. In the second year we will produce two RFA prototypes,
based in resonant Bragg cavities and low cost pump lasers, taking
into account the previously derived optimization results. Such RFA
prototypes will be capable of amplification over at least two spectral
windows (S,C,L). The main goal of the second year is to validate the
developed prototypes (and algorithm) in a high debit optical network
though the prototypes overall performance and capacities. The
validation tests will occur using a burst signal and in an optical
recirculating loop to access the cascability performance
Acron / Ref
ETOBLU
Title
Terminal Equipments for Optical Single Side Band Transmission
Descript.
Develop optical single sidenband (OSSB) transmission and receiver
systems capable to upgrade the capacity of the installed fibre with
transmission rates exciding the 10 Gbit/s.
Acron / Ref
ETOBLU / 80/03
Title
Terminal Optical Equipments for Single Side Band
Descript.
Chromatic
dispersion
in
nondispersion-shifted
fibers,
limits
significantly the transmission distance in optical systems operating at
data rates in the range of 10Gbit/s, or higher, per wavelength division
multiplexing (WDM) channel. This limitation is due to intersymbol
interference
(ISI),
which
leads
to
degradation
on
system
performance. Given the large quantity of nondispersion-shifted fibre
currently installed in telecommunications network, overcoming this
limitation has become a very important scientific and commercial
107
goal. One of the most promising techniques to overcome the
dispersion limit is the transmission of optical single sideband (OSSB)
signals. This project will develop OSSB transmission and receiver
systems capable to upgrade the capacity of the installed fibre with
transmission rates exciding the 10 Gbit/s.
Acron / Ref
COST 291
Title
Towards digital optical communications
Descript.
The primary objective of the COST Action “Towards Digital Optical
Networks” is to focus on novel network concepts and architectures
exploiting the features and properties of photonic technologies, to
enable future telecommunications networks. It is aiming to propose a
new generation of systems and networks that will accommodate the
unpredictable and growing size of data files and messages exchanged
and stored as well as real time services (e.g. voice, video etc) over
global distances requiring an agile Communication Grid supporting
quality of services. These need to provide end-toend bandwidth for
transmission of traffic for applications such as information retrieval,
downloading (often multimedia) web software, exchange of various
type of software (hundreds of Mbytes) and data models (Gbytes) etc
as well as real time multimedia applications. These systems need to
be very flexible and rapidly reactive to efficiently accommodate the
abrupt and unpredictable changes in traffic statistics introduced by
current and future applications with low endto- end latency. They will
enable advanced features such as efficient and simple multicasting
and broadcasting of broadband signals. In general, they need to
support a future proof, flexible, efficient and bandwidth-abundant
fiber-optic network infrastructure capable of supporting ubiquitous
services in a resilient manner offering protection and restoration
capabilities as well as secure services to the users. Transparency to
various digital signals and protocols is required to eliminate the need
108
for multilayer complex network architectures suffering by poor
scalability for data services, high latency, complicated network
management and high cost. This migration can be gradually achieved
by
removing
and/or
integrating
intermediate
layers.
Flat
and
upgradeable network architectures supporting photonic core and
access technologies with intelligent edge nodes at the interfaces will
form
a
universal
supported
by
infrastructure
multiple
offering
operators.
The
a
variety
ease
of
of
services
maintenance,
provisioning and resilient operation required in this type of networks
will
be
achieved
mechanisms,
through
eliminating
advanced
the
routing
requirement
and
for
management
ever
increasing
amounts of complex software raising the cost and limiting the
network
reliability
and
availability.
This
advanced
photonic
infrastructure will employ optical signal processing and dynamic
impairment management to eliminate the limitations of the analogue
nature of traditional optical networks, dense wavelength division
multiplexing technologies for signal transmission and routing, and
optical packet and/or burst switching to provide fine bandwidth
granularity, network efficiency and flexibility.
Acron / Ref
Title
THE MOST
Transimpedance Highly Efficient Micro & millimetrewave Optical Smart
Transceiver
Descript.
To produce a completed smart transceiver module for optical
communications at 10 Gbit/s and 40 Gbit/s
109
4.2.5
Final Year Projects
Supervisor
Paulo Monteiro
Paulo Monteiro
Paulo Monteiro
Student
José Alexandre &
R. S Albergaria
Title
End Date
Circuitos igualização para
sistemas de comunicação por
6/2005
fibra óptica
Nuno M. da Silva
Projecto e implementação de
Ribeiro & Rui Manuel
um emissor Óptico para Banda
Estanqueiro Santos
Lateral Única
Pedro dos Santos &
Simulador de sistemas de
Manuel Fernandes
comunicações ópticas
6/2005
6/2005
Interface para Redes de Bragg
António Teixeira
Dilia & Filipe
sintonizáveis por tensão
7/2005
mecânica
António Teixeira
Joel & Ricardo
António Teixeira
Manuel & Pedro
António Teixeira
Rudolfo & Denis
António Topa
Nuno Rodrigues
Armando Nolasco
André Quinta &
Pinto
António Almeida
Armando Nolasco
Octavio Raio &
Pinto
Fernando Antunes
Jorge Torres Pereira
Hugo Lopes Tavares
Sistea de gestão laboratoria.
Simulador de Sistemas de
Comunicações Ópticas
Monitores ópticos de
oxigenação sanguínea remotos
Bandas de Energia em Lasers
Semicondutores
7/2005
7/2005
7/2005
7/2005
Optical Loop, Development of a
Reconfigurable Controller
7/2005
Board
Video and Audio Wireless
Intercommunicator Based on a
7/2005
GameBoy Console
High-speed photodetectors
7/2005
110
Supervisor
Student
Title
End Date
Cabeças sensoras para
Paulo André
Carla Lima Correia
sistemas de monitorização por
7/2005
fibra óptica
Tolerância térmica de
componentes optoelectrónicos
Paulo André
Paulo Costa Antunes
passivos e activos – linhas de
7/2005
orientação para a transição
DWDM - CWDM
Adolfo Cartaxo
Elói Teixeira Pereira & WDM systems with differential
Pedro da Silva Garcia phase-shift-keying modulation
9/2005
Analysis and Simulation of
Henrique José A. Silva José da Silva Pina
Node Architectures for Optical
9/2005
Burst Switching Networks
João Pires
Paulo André
Armando Nolasco
Pinto
Armando Nolasco
Pinto
Armando Nolasco
Pinto
Armando Nolasco
Pinto
Paulo Monteiro
Benjamim Vieira &
Diogo Conceição
Luís Miguel Branco
Baptista Sá
Bruno Almeida Lopes
Analysis and simulation of an
IP/WDM network with ring
10/2005
topology
Compensação óptica da
dispersão cromática de fibras
12/2005
ópticas
Optical Loop - Hardware
Optimization
6/2006
Wireless Transmission System
Paulo Oliveira Nunes
for Biomedical Applications
6/2006
Based on a Gameboy Console
Pedro Monteiro
Tiago da Silva Brás
Development of a Local
Position System
Optical Loop - Software
Optimization
Luís Amaral &
Emissor Óptico de Alto Débito
Vitor Silva
em Banda Lateral Única
6/2006
6/2006
6/2006
111
Supervisor
Paulo Monteiro
Student
Title
Miguel Pereira &
Simulador de sistemas de
Bruno Santos
comunicações ópticas
End Date
6/2006
Formatação de Sinalização
Paulo Monteiro
Nuno Farinha &
Aplicada a Emissores Ópticos
Francisco Afonso
de Alto Débito em Banda
6/2006
Lateral Única
Bruno Ricardo André
Ivo Domingues &
Coelho
Patrick Santos
Paulo André
Micaela Bernardo
Paulo André
Nuno Fernandes
Adolfo Cartaxo
Adolfo Cartaxo
Adolfo Cartaxo
João Pires
OptiLink
Amplicadores Raman em redes
CWDM
Compensadores de Dispersão
cromática
Sérgio dos Santos &
Design of WDM links limited by
Ana Filipa Guardado
stimulated Raman scattering
Tiago Ferreira Alves & Design of WDM links limited by
Nelson Costa
cross-phase modulation
Tiago Miguel Rosa
Dias
7/2006
7/2006
7/2006
9/2006
9/2006
Ultra-dense WDM systems with
single sideband alternate mark
9/2006
inversion signalling
Analysis and planning of an
João Santos &
Orlando Quadros
access network based on PON
9/2006
technology
Table 20 - List of Final Year Projects running in the Optical Communications Area during
2005
112
MSc Theses
Supervisor
Paulo Monteiro
Student
Luís Miguel Ribeiro
Teixeira
Title
End Date
Circuitos de Igualação para
Elevados Ritmos de
6/2005
Transmissão
Planning and optimisation of a
João Pires
Paulo Sena
WDM transport network with a
9/2005
high degree of survivability
Redes de Bragg
Dinamicamente
Paulo André
Berta Neto
Reconfiguráveis para a
11/2005
Compensação de Dispersão
Cromática
Armando Nolasco
Pinto
Nelson Muga
Henrique José A. Silva Sílvia Vaz Pato
António Teixeira
Paulo André
Manuel Matos
Polarization Mode Dispersion in
Optical Fibers
Evolution of EPONs to Higher
Data Rate
Optimização de redes ópticas
em Operação
3/2006
3/2006
6/2006
Design and analysis of
João Pires
João Galhordas
metropolitan optical networks
in the presence of physical
12/2006
layer impairments
113
Supervisor
Armando Nolasco
Pinto
Student
Title
End Date
Planning and Dimensioning of
Abel Correia
3/2007
Optical Networks Based on
Optical Switching
Sensores ópticos na
Paulo André
Alberto Câmara
monitorização estrutural de
12/2007
edifícios
Table 21 - List of MSc Theses running in the Optical Communications Area during 2005
PhD Theses
Supervisor
Student
José Ferreira da Rocha Rogério Nogueira
Adolfo Cartaxo
João Pires
Carlos Sá da Costa
Paulo Monteiro
José Passos Morgado
Title
Bragg Gratings for Optical
Communications
Direct modulation optical
communication systems
End Date
3/2005
3/2006
Multichannel optical networks
Luís Cancela
based on hierarchical ring
12/2006
topologies
Miguel Madureira
Design of wide-band integrated
optical front-ends
12/2006
Coding formats for dense
Adolfo Cartaxo
Natasa B. Pavlovic
wavelength division
2/2007
multiplexing systems
Optimization of Optical
Armando Nolasco Pinto Meire Fugihara
Telecommunication Systems
Using Distributed Raman
3/2007
Amplification
114
Supervisor
Adolfo Cartaxo
Paulo Monteiro
António Teixeira
Paulo Monteiro
António Teixeira
Henrique José A. Silva
Paulo Monteiro
Adolfo Cartaxo
Paulo Monteiro
Paulo Monteiro
Paulo André
João Pires
Paulo Monteiro
António Teixeira
Paulo André
Student
Daniel Fonseca
Title
End Date
Single side-band optical
5/2007
communication systems
Design and Optimization of
Ruben Soares Luís
6/2007
optical routing techniques and
devices
Sergio Junior
Amplificação de sistemas de
6/2007
comunicação ópticos
Multiplexing and Multiple
Marek Hajduczenia
6/2007
Access Techniques for Passive
Optical Networks
Mário Rui Leiria
Nuno Garcia dos
Santos
Optical communication systems
7/2007
with optical regenerators
Arquitecturas de Redes com
7/2007
Comutação Óptica de
Agregados de Pacotes IPv6
Integrated multi-functional
Lara Pellegrino
photonic devices for optical
10/2007
communication purposes
Optimisation of optical
João Pedro
networks supporting IP/MPLS
12/2007
traffic
Tiago Silveira
Rui Miguel Oliveira
Meleiro
All-optical signal processing
6/2008
Optical processing devices and
9/2008
techniques for next generation
optical networks
Table 22 - List of PhD Theses running in the Optical Communications Area during 2005
115
4.2.6
Publications
4.2.6.1 Optical Communication Systems
Papers in Journals
- Fonseca, D.F.; P. Monteiro; A. Cartaxo; “Adaptive optical single sideband filter
based on a phase modulator”, Electronics Letters, Vol. 41, No. 13, pp. 760 - 761,
June, 2005.
- Rebola, J. L. ; A. Cartaxo; “Analysis and validation of the probability density
function of the output current of optically preamplified receivers with arbitrary
optical filtering through Monte Carlo simulation”, Journal of Optical Comm., Vol. 1,
No. 1, pp. 1 - 2, October, 2005.
- Luis, R.; A. Cartaxo; “Analytical characterization of SPM impact on XPM-induced
degradation in dispersion compensated WDM systems”, IEEE/OSA Journal of
Lightwave Tech., Vol. 23, No. 3, pp. 1503 - 1513, March, 2005.
- Teixeira, A.T.; T. Silveira; P. Monteiro; “Cross-gain modulation bandwidth
enhancement in semiconductor optical amplifiers by means of detuned optical
filter”, Electronics Letters, Vol. 41, No. 13, pp. 53 - 54, June, 2005.
- André, P.S; A.T. Teixeira; P. Monteiro; M. J. N. Lima; R.N. Nogueira; R. F. Rocha;
J. L. Pinto; “Dispersion compensation in IP-over-DWDM networks employing
combined modulation formats”, Journal of High Speed Networks, Vol. 14, No. -, pp.
283 - 292, October, 2005.
- Leiria, M.; A. Cartaxo; “Evaluation of Transparent Optical Network Performance in
Presence of Incoherent Homodyne Crosstalk”, Fiber and Integrated Optics, Vol. 24,
No. 3-4, pp. 315 - 330, May, 2005.
- Moura, L.; P. Monteiro; I. Darwazeh; “Generalized noise analysis technique for
four-port linear networks”, IEEE Trans. on Circuits and Systems I, Vol. 52, No. 3,
pp. 631 - 640, March, 2005.
- Luis, R.; A. Cartaxo; “Impact of dispersion slope on XPM degradation in WDM
systems with high channel count”, IEEE/OSA Journal of Lightwave Tech., Vol. 23,
No. 11, pp. 3764 - 3772, December, 2005.
116
- Fonseca, D.F.; A. Cartaxo; P. Monteiro; “Modeling and Experimental Validation of
an X-Cut 4 Phase-Modulators Structure”, IEE Proceedings, Part J – Optoelectronics,
August, 2005.
- Fonseca, D.F.; A. Cartaxo; “On the transition to pseudo-linear regime in
dispersion managed systems with NRZ, RZ and duobinary signal formats”, IEE
Proceedings, Part J – Optoelectronics, Vol. 152, No. 3, pp. 181 - 187, June, 2005.
- Monteiro, P.; D.F. Fonseca; A. Ferreira; T. Silveira; N. Garcia; M. Hajduczenia; C.
Santiago; J. Pedro; R. Luis; L. Pellegrino; “Optical Communications Research
Activities at COM RD1 Siemens S.A”, Fiber and Integrated Optics, Vol. 24, No. -,
pp. 395 - 410, June, 2005.
- Teixeira, A.T.; R.N. Nogueira; P.S André; M. J. N. Lima; R. F. Rocha; “Optimised
wavelength interleaved radio-over-fibre system based on highly birefringent fibre
Bragg gratings”, Electronics Letters, Vol. 41, No. 1, pp. 30 - 32, January, 2005.
- Charrua, P.; A. Cartaxo; “Optimized filtering for AMI-RZ and DCS-RZ SSB signals
in 40 Gbit/s/ch-based UDWDM systems”, IEEE Photonics Technology Letters, Vol.
17, No. 1, pp. 223 - 225, January, 2005.
- Cartaxo, A.; J. L. Rebola; N.P. Pavlovic; P. Charrua; D.F. Fonseca; Morgado; R.
Luis; M. Leiria; “Overview of DWDM/ODC project”, Fiber and Integrated Optics, Vol.
24, No. 3-4, pp. 331 - 352, April, 2005.
- Charrua, P.; A. Cartaxo; “Performance of DCS-RZ single-sideband signal in 40
Gbit/s Long-Haul transmission systems”, IEE Proceedings, Part J – Optoelectronics,
Vol. 152, No. 1, pp. 33 - 40, February, 2005.
- Ferreira, M.; A. N. Pinto; P.S André; N. Muga; J. Machado; R.N. Nogueira; S.
Latas; M. Sousa; R. F. Rocha; “Polarization Mode Dispersion in High-Speed Optical
Communication Systems”, Fiber and Integrated Optics, Vol. 24, No. 3-4, pp. 261 285, March, 2005.
- Rebola, J. L. ; A. Cartaxo; “Probability density function of the output current of
cascaded multiplexer/demultiplexers in transparent optical networks”, Fiber and
Integrated Optics, Vol. 24, No. 2, pp. 55 - 72, March, 2005.
- André, P.S; X Xiangjun; A.T. Teixeira; P. Monteiro; R. F. Rocha; “Study of Optical
Transmission Performance in IP-Over- WDM Networks Based on FSK/ASK Combined
Modulation Format”, ETRI Transactions, Vol. 27, No. 3, June, 2005.
- André, P.S; X Xiangjun; A.T. Teixeira; A. Ferreira; T. Silveira; P. Monteiro; R. F.
Rocha; J. L. Pinto; “The Influence of Pump Wavelength on the Performance of
117
Wavelength Conversion of 10-GB/S Single-Side-Band Optical Signal Based on FourWave Mixing in Dispersion-Shifted Fiber”, Microwave and Optical Tech. Letters, Vol.
46, No. 5, pp. 493 - 493, September, 2005.
- Luis, R.; A.T. Teixeira; A. Cartaxo; P. Monteiro; “A short theoretical study on the
XPM
frequency
limitations
in
NOLM
based
wavelength
converters”,
Proc
International Conf. on Transparent Networks – ICTON, Barcelona, Spain, Vol. 1, pp.
109 - 112, July, 2005.
- Teixeira, A.T.; G. Tosi-Beleffi; “3R All Optical Regeneration with Re-Timing stage
based on a clock auxiliary carrier”, Proc International Conf. on Transparent
Networks – ICTON, Barcelona, Spain, Vol. 1, June, 2005.
- Fonseca, D.F.; A. Cartaxo; P. Monteiro; T. Silveira; A. Ferreira; M. Violas; “40
Gbit/s OSSB-NRZ transmitter for high capacity systems”, Proc European Conf. on
Optical Communications - ECOC, Glasgow, United Kingdom, Vol. 4, pp. 787 - 788,
September, 2005.
- Montero, P.; M. Violas; R. F. S. Ribeiro; Luís M. R. Teixeira; M. Madureira; R. L.
Aguiar; R. F. Rocha; “Adaptive Electronic Equalizers for Very High Speed Optical
Communication Systems”, Proc Symposium on Enabling Optical Networks - SEON,
Aveiro, Portugal, Vol. 1, pp. 2 - 3, June, 2005.
- Teixeira, A.T.; T. Silveira; A. Ferreira; R.N. Nogueira; P.S André; M. J. N. Lima; P.
Monteiro; R. F. Rocha; “All optical router based on OCDMA codes and SOA based
devices”, Proc International Conf. on Transparent Networks – ICTON, Barcelona,
Spain, Vol. 1, July, 2005.
- Teixeira, A.T.; T. Silveira; P.S André; R.N. Nogueira; P. Monteiro; R. F. Rocha;
“All-Optical Switching with SOA Based Devices”, Proc International Conf. on
Advanced Optoelectronics and Lasers - CAOL, Yalta, Ukraine, Vol. 1, September,
2005.
- Pavlovic, N.P.; A. Cartaxo; “Comparison between several enhanced phase-shaped
binary transmission formats for 40 Gb/s/channel UDWDM systems”, Proc Conf. on
- Fonseca, D.F.; A. Cartaxo; P. Monteiro; “Comparison of Implementations Using
the Phase Shift Technique to Generate OSSB-NRZ and OSSB-RZ Signals”, Proc
118
International Conf. on Transparent Networks – ICTON, Barcelona, Spain, Vol. 2, pp.
197 - 200, July, 2005.
- Cartaxo, A.; R. Luis; “Cross-phase modulation in WDM systems”, Proc Conf. on
- Machado, J.; Luís M. R. Teixeira; M. Madureira; J. M. Santos; P. Monteiro; A. N.
Pinto; M. Violas; “Dynamic Electronic Dispersion Compensation for Efficient Micro &
Millimetre Wave Optical Transceivers”, Proc Photonic Signal Processing for Defence
Applications, Rome, Italy, March, 2005.
- Monteiro, P.; “Electronic Dispersion Equalizers for Very High Speed Optical
Communication Systems”, Proc European Conf. on Optical Communications - ECOC,
Glasgow, United Kingdom, September, 2005.
- Luis, R.; A. Cartaxo; “Equivalent linear model of XPM-induced degradation in
dispersion compensated WDM systems taking into account the SPM-influence”, Proc
Conf. on Telecommunications - ConfTele, Tomar, Portugal, April, 2005.
- Pavlovic, N.P.; A. Cartaxo; “First Results on a Novel Coding Format for Ultra
Dense WDM Systems at 40 Gbit/s/channel”, Proc Symposium on Enabling Optical
Networks - SEON, Aveiro, Portugal, Vol. 1, pp. 99 - 102, June, 2005.
- Fonseca, D.F.; A. Cartaxo; P. Monteiro; “Highly efficient electrical dispersion
compensation scheme for optical single sideband systems”, Proc IEEE Lasers and
Electro Optics Society Annual Meeting - LEOS, Sydney, Australia, Vol. -, pp. 898 899, October, 2005.
- Ferreira, A.P.S.; T. Silveira; R. F. S. Ribeiro; P. Monteiro; M. Violas; A.T. Teixeira;
“Mitigation of Chromatic Dispersion Effects on Optical Single Sideband Signals by
Butterworth Filtering”, Proc International Conf. on Transparent Networks – ICTON,
Barcelona, Spain, Vol. 2, pp. 76 - 79, July, 2005.
- Teixeira, A.T.; R. Luis; A. Cartaxo; P. Monteiro; “Novel Distortion Resilient OSNR
Monitoring Technique Based on Evaluation of Asynchronous Histograms”, Proc
International Conf. on Transparent Networks – ICTON, Barcelona, Spain, Vol. 1,
June, 2005.
- Teixeira, A.T.; T. Silveira; A. Ferreira; P.S André; M. J. N. Lima; R.N. Nogueira; R.
F. Rocha; “OCDMA Headers Properties Impact on an All-Optical Packet Router
Module”, Proc Conf. on Optical Networks Design and Modelling - ONDM, Zagreb,
Croatia, Vol. Contel 1, June, 2005.
119
- Charrua, P.; A. Cartaxo; “On the suitability of some signalling formats for optical
single-sideband transmission”, Proc Winter School on Optical Core Networks,
Aveiro, Portugal, February, 2005.
- Fonseca, D.F.; A. Cartaxo; P. Monteiro; “On the use of transversal filters in optical
single sideband-non return to zero transmission systems”, Proc Symposium on
Enabling Optical Networks - SEON, Aveiro, Portugal, Vol. 1, pp. 18 - 21, June,
2005.
- Teixeira, A.T.; T. Silveira; S. Junior; R.N. Nogueira; G. Tosi-Beleffi; “Optical Gain
Characteristics of Rayleigh Backscattered Lasing in Several Fibre Types”, Proc
European Conf. on Networks and Optical Communications - NOC, London, United
Kingdom, Vol. 1, July, 2005.
- Fonseca, D.F.; P. Monteiro; A. Cartaxo; “Optical single sideband transmitter based
on the Weaver's method”, Proc Conf. on Telecommunications - ConfTele, Tomar,
Portugal, Vol. --, April, 2005.
- Pavlovic, N.P.; A. Cartaxo; “Optimisation of duobinary coding formats for UDWDM
transmission systems”, Proc Winter School on Optical Core Networks, Aveiro,
Portugal, Vol. 1, pp. C5 - C10, February, 2005.
- Morgado, ; A. Cartaxo; “Optimization of a fiber-based dispersion compensation
scheme for long-haul directly-modulated/direct-detection systems”, Proc Conf. on
- Pavlovic, N.P.; A. Cartaxo; “Optimized Bandwidth-Limited Duobinary Coding
Format for Ultra Dense WDM Systems”, Proc International Conf. on Transparent
Networks – ICTON, Barcelona, Spain, Vol. 2, pp. 385 - 388, July, 2005.
- Luis, R.; A.T. Teixeira; P.S André; P. Monteiro; “OSNR monitoring technique
based
on
evaluation
of
asynchronous
histograms”,
Proc
Conf.
on
- Charrua, P.; A. Cartaxo; “Performance Assessment of AMI-RZ and DCS-RZ SSB
Signals in 4×40 Gbit/s/ch UDWDM Systems”, Proc Conf. on Telecommunications ConfTele, Tomar, Portugal, April, 2005.
- Teixeira, A.T.; G. Tosi-Beleffi; R.N. Nogueira; P.S André; “Performance evaluation
of an All-Optical Clock Recovery and data Resampling stage for NRZ Data signals”,
Proc Conf. on Lasers and Electro-optic - CLEO, Baltimore, United States, April,
2005.
120
- Rebola, J. L. ; A. Cartaxo; “Rigorous performance assessment of optically
preamplified receivers with partially polarised noise and arbitrary optical filtering”,
Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. 1, pp. 1 - 2,
April, 2005.
- Ferreira, A.P.S.; T. Silveira; P. Monteiro; R. F. S. Ribeiro; M. Violas; R. F. Rocha;
“Robustness analysis of a 40Gb/s Optical Single Side Band Transmitter with
electrical dispersion compensation”, Proc Conf. on Telecommunications - ConfTele,
Tomar, Portugal, on cd, April, 2005.
- Fugihara, M.; A. N. Pinto; “The Use of Raman Amplification to Increase the Reach
of Short Undersea Optical Systems”, Proc Conf. on Telecommunications - ConfTele,
- Fonseca, D.F.; A. Cartaxo; “Transition to pseudo-linear regime in dispersion
managed systems”, Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal,
April, 2005.
- Fonseca, D.F.; A. Cartaxo; P. Monteiro; “Transmission Improvements Using
Electrical Dispersion Compensation at the Transmitter Side and RZ Pulse Format in
Optical Single Sideband Systems”, Proc International Conf. on Transparent
Networks – ICTON, Barcelona, Spain, Vol. 2, pp. 381 - 384, July, 2005.
4.2.6.2 Optical Components And Sub-Systems
Papers in Journals
- André, P.S; A. N. Pinto; “Chromatic dispersion fluctuations in optical fibers due to
temperature and its eﬀects in high-speed optical communication systems”, Optics
Communications, Vol. 246, pp. 303 - 311, February, 2005.
- Lima, M. J. N.; A.T. Teixeira; P.S André; R. F. Rocha; “Comparison of the
crosstalk characteristics of optical add/drop multiplexers based on Mach-zehnder
Interferometers with FBGs”, Journal of Optical Comm., Vol. 26, No. 5, pp. x - y,
December, 2005.
- Lima, M. J. N.; R.N. Nogueira; A.T. Teixeira; P.S André; R. F. Rocha; H.
Kalinowsky; J. L. Pinto; “Comparison of the temperature dependence of diffrent
121
types of Bragg gratings”, Microwave Optical Tech. Letters, Vol. 45, No. 4, pp. 305 307, May, 2005.
- Morgado, ; A. Cartaxo; “Laser optimisation for dispersion supported transmission
systems”, IEE Proceedings, Part J – Optoelectronics, Vol. 152, No. 1, pp. 49 - 56,
February, 2005.
- Costa, L.; P.S André; “Microwave dielectric properties of glass-reinforced
polymers”, AND-polymers, Vol. 4, January, 2005.
-
Costa,
L.;
P.S
André;
“Microwave
Dielectric
Properties
of
PolybutylenE
Terephtalate (PBT) with Carbon Black Particles”, Microwave and Optical Tech.
Letters, Vol. 46, No. 1, pp. 61 - 63, July, 2005.
- Neto, B.; M. J. N. Lima; A.T. Teixeira; R.N. Nogueira; J. L. Pinto; R. F. Rocha; P.S
André; “Modelização da dispersão de um compensador dinâmico de dispersão
cromática baseado em redes de Bragg de período variável gravadas em fibra
óptica”, Rev. do Dep. de Electrónica and Telecomunicções da Univ. Aveiro, Vol. 4,
No. 4, pp. 531 - 535, April, 2005.
- André, P.S; A.T. Teixeira; J. L. Pinto; “Simplified heat exchange model for
semiconductor laser”, Laser Physics Letters, Vol. 2, No. 11, pp. 525 - 528,
November, 2005.
- André, P.S; A.T. Teixeira; A. Ferreira; T. Silveira; P. Monteiro; R. F. Rocha; J. L.
Pinto; “The improvement of ASK signal quality by employing an effective spectrum
equalization method in a combined ASK/FSK modulation scheme”, Chinese Physics
Letters, Vol. 22, No. 8, pp. 1948 - 1950, August, 2005.
- Lima, M. J. N.; R.N. Nogueira; A.T. Teixeira; P.S André; R. F. Rocha; J. L. Pinto;
“Thermal chirping of type IIA fiber Bragg gratings”, WSEAS Transactions on
Communications, Vol. 4, No. 2, pp. 37 - 39, February, 2005.
- Fernandes, C. F.; “Rendimento de Modo Único em Lasers de Retroacção
Distribuída com Faces Reflectoras”, Proc Congresso de Métodos Numéricos em
Engenharia, Granada, Spain, Vol. 1, pp. 1.1 - 1.11, July, 2005.
- Lima, M. J. N.; R.N. Nogueira; A.T. Teixeira; P.S André; R. F. Rocha; “Abnormal
growth mechanism of fiber Bragg gratings in high-Germanium-doped fibers”, Proc
122
SPIE - Optoelectronics, Photonic Devices, and Optical Networks, Dublin, Ireland,
Vol. 5825, pp. 310 - 315, April, 2005.
- Nogueira, R.N. ; A. N. Pinto; P.S André; A.T. Teixeira; R. F. Rocha; J. L. Pinto;
“All-fiber tunable dispersion and polarization mode dispersion compensator based
on enhanced thermal tuning”, Proc Conf. on Telecommunications - ConfTele,
- Pereira, J. T.; “Análise da resposta em frequência de fotodíodos com estrutura
multicamada”, Proc Congresso de Métodos Numéricos em Engenharia, Granada,
Spain, Vol. 1, pp. 1 - 9, July, 2005.
- Nogueira, R.N. ; A.T. Teixeira; P.S André; R. F. Rocha; J. L. Pinto; “Aplicação das
redes de Bragg nas comunicações ópticas”, Proc Conf. Nacional de Física, Porto,
Portugal, November, 2005.
- Pellegrino, L.; P. Monteiro; A.T. Teixeira; P.S André; “Bragg Grating Fabry-Perot
Cavities at 10 GHz”, Proc Numerical Simulation of Semiconductor Optoelectronic
Device, Berlim, Germany, September, 2005.
- Silva-Carvalho, L.; O. Abe; H. Kalinowsky; R.N. Nogueira; “FBG application in the
determination of setting expansion of dental materials”, Proc Optical Fiber Sensors
Conference, Brugges, Belgium, Vol. P1-25, March, 2005.
- Teixeira, Luís M. R. ; P. Monteiro; M. Violas; “Feasibility of Transversal Filters for
Adaptive Chromatic Dispersion Compensators in Multigigabit Optical Communication
Systems”, Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. 1,
April, 2005.
- Silva-Carvalho, L.; R.N. Nogueira; J. L. Pinto; H. Kalinowsky; J. Simões; “Fibre
Bragg grating sensing and finite element analysis of the biomechanics of the
mandible”, Proc Optical Fiber Sensors Conference, Bruges, Belgium, Vol. paper
We1-3, March, 2005.
- Morgado, ; A. Cartaxo; “Guidelines for laser optimization for dispersion supported
transmission systems”, Proc Conf. on Telecommunications - ConfTele, Tomar,
Portugal, Vol. --, April, 2005.
- André, P.S; A.T. Teixeira; L. Pellegrino; M. J. N. Lima; R.N. Nogueira; P. Monteiro;
“of Laser Parameters for Simulation Purposes”, Proc Numerical Simulation of
Semiconductor Optoelectronic Device, Berlim, Germany, September, 2005.
- André, P.S; A.T. Teixeira; M. J. N. Lima; R.N. Nogueira; S. Junior; R. F. Rocha; J.
L. Pinto; L. Pellegrino; P. Monteiro; “Single Fiber Bragg grating degenerated into
123
optical cavity resonators for clock recovery purposes”, Proc International Conf. on
Transparent Networks – ICTON, Barcelona, Spain, September, 2005.
- André, P.S; A.T. Teixeira; M. J. N. Lima; R.N. Nogueira; S. Junior; R. F. Rocha; J.
L. Pinto; P. Monteiro; “Single Fiber Bragg grating degenerated into optical cavity
resonators for clock recovery purposes”, Proc International Conf. on Transparent
Networks – ICTON, Barcelona, Spain, September, 2005.
- Pellegrino, L.; P. Monteiro; A.T. Teixeira; P.S André; “Study of Bragg grating
Fabry-Perot
Cavities”,
Proc
European
Conf.
on
Networks
and
Optical
Communications - NOC, London, United Kingdom, January, 2005.
- André, P.S; A. N. Pinto; J. L. Pinto; “Temperature dependence of GeO2 doped
Silica absorption bands and its consequence on the characteristics of optical fibres”,
Proc Conf. da Sociedade Portuguesa de Materiais - Materiais, Aveiro, Portugal,
March, 2005.
- André, P.S; A.T. Teixeira; A. N. Pinto; J. L. Pinto; R. F. Rocha; “Temperature
effects on the chromatic dispersion of standard single mode optical fibres”, Proc
European Conf. on Networks and Optical Communications - NOC, London, United
Kingdom, July, 2005.
- André, P.S; P. Antunes; A.T. Teixeira; J. L. Pinto; “Thermodynamic model for low
cost uncooled semiconductor laser”, Proc Avionics fiber optics and photonics
conference, Minneapolis, United States, September, 2005.
- Neto, B.; L. V. Sá; R.N. Nogueira; J. L. Pinto; M. J. N. Lima; R. F. Rocha; A.T.
Teixeira; P.S André; “Thermodynamic model of tunable chromatic dispersion
compensator using chirped fiber Bragg grating”, Proc Conf. on Telecommunications
- ConfTele, Tomar, Portugal, April, 2005.
- Nogueira, R.N. ; A.T. Teixeira; M. J. N. Lima; P.S André; J. L. Pinto; R. F. Rocha;
“Tunable Dispersion Compensator and Tunable Dispersion Slope Compensator
based on Induced Thermal Chirping in Fiber Bragg Gratings”, Proc International
Conf. on Transparent Optical Networks, Barcelona, Spain, June, 2005.
- Nogueira, R.N. ; O. Abe; P.S André; A.T. Teixeira; R. F. Rocha; J. L. Pinto;
“Utilização das redes de Bragg como sensores de elevada resolução em engenharia
and como processadores ópticos nas comunicações ópticas”, Proc Engenharia Jornadas da Universidade da Beira Interior, Covilhã, Portugal, Vol., November,
2005.
124
4.2.6.3 Optical Networking
- Cancela, L. G. C.; J. J. O. Pires; “Application of the Saddle Point Method for the
Evaluation of the Probability Density Function of Pre-Amplified OOK Systems in the
Presence of Intrachannel Crosstalk”, Proc Advanced International Conference on
Telecommunications, Lisbon, Portugal, July, 2005.
- Pedro, J. M.; P. Monteiro; “Burst Loss Reduction in OBS Networks by Minimizing
Network Congestion”, Proc Conf. on Telecommunications - ConfTele, Tomar,
Portugal, April, 2005.
- Cancela, L. G. C.; J. J. O. Pires; “Impact of Intrachannel Crosstalk on the
Performance of Direct-Detection DPSK Optical Systems”, Proc Conf. on Lasers and
Electro-optic - CLEO, Baltimore, United States, May, 2005.
- Sargento, S.; J. Madaleno; A.T. Teixeira; “Integration between TCP/UDP and IP
Packets Error Probabilities and BER”, Proc Symposium on Enabling Optical Networks
- SEON, Aveiro, Portugal, Vol. 1, pp. 1 - 1, June, 2005.
- Hajduczenia, M.; H. J. A. Silva; P. Monteiro; “Inter-packet bursts and their
influence on the self-similarity of the trace”, Proc Conf. on Telecommunications ConfTele, Tomar, Portugal, Vol. 1, pp. 1 - 1, April, 2005.
- Hajduczenia, M.; H. J. A. Silva; P. Monteiro; M. M. Freire; N. Garcia; “Modelling
and Simulation of IPv6 Traffic”, Proc BTech Conference, Barcelona, Spain, Vol.,
June, 2005.
- Cancela, L. G. C.; J. J. O. Pires; “Numerical Study on the Tolerance to
Intrachannel Crosstalk of Direct-Detection DPSK Optical Systems”, Proc European
Conf. on Optical Communications - ECOC, Glasgow, United Kingdom, Vol. *, pp. * *, September, 2005.
- Hajduczenia, M.; H. J. A. Silva; P. Monteiro; “Source aggregation as a solution for
generation of synthetic IP traces”, Proc Conf. on Telecommunications - ConfTele,
Tomar, Portugal, Vol. 1, pp. 1 - 1, April, 2005.
- André, P.S; A.T. Teixeira; X Xiangjun; A. Ferreira; T. Silveira; P. Monteiro; R. F.
Rocha; J. L. Pinto; “Study of Optical Labeling Transmission Performance in IP-overWDM Networks Based on Combined FSK/ASK Modulation Format”, Proc Conf. on
125
- Antunes, P.; A.T. Teixeira; P. Mão-Cheia; J. Osório; J. L. Pinto; P.S André;
“Thermal Tolerances of Optoelectronics Devices and Consequent Implications in
CWDM Networks”, Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal,
April, 2005.
- Pedro, J. M.; P. Monteiro; “Throughput Performance Comparison of the One-Way
and Two-Way Resource Reservation Mechanisms for Optical Burst Switched
Networks”, Proc Symposium on Enabling Optical Networks - SEON, Aveiro,
Portugal, Vol. 1, pp. 22 - 26, June, 2005.
126
4.2.7
Other Achievements
4.2.7.1 Patents
•
Fonseca, D.; A. Cartaxo; P. Monteiro; “Enhanced electrical dispersion
method for optical transmission systems”; European patent application nº
05014381.7; July 2005.
•
Hajduczenia, M.; N. Garcia; H. J .Silva; M. Freire; P. Monteiro; “Real Time
Evaluation of Self-Similarity Degree through Hurst Parameter Estimation
using modified Embedded Branching Process (mEBP) ”, European patent
application nº 05023580.3, October 2005.
•
Silveira, T.; A. Teixeira; P. Monteiro; “Optical Vestigial Sideband converter
Based an a SOA”. European patent application nº 05022460.9, October
2005.
•
Fonseca, D.; A.Cartaxo; P. Monteiro; “Adaptive optical single sideband filter
based on a phase modular”; European patent application nº 05001145.1;
Jannuary 2005.
•
Garcia, N.; J. R. R. Santos; M. Freire; P. Monteiro; “Architecture for Optical
Burst
Switched
Networks:
Common
Control
Channel
OBS-C³-OBS”;
European patent application nº 04031049.2; December 2004.
•
Garcia, N.; M. Hajduczenia; M. Freire; H. J. Silva; P. Monteiro; “IP Packet
Aggregator and Converter (v4/6 to v6/Future) Algorithm and/or Machine
Concept-IP PAC” file invention disclosure as European patent, 2005.
•
Silveira, T.; A. Ferreira; A. Teixeira; R. Ribeiro; P. Monteiro; “Optical
Vestigial Sideband Modulator with a differential filter”, file invention
disclosure as European patent, 2005.
127
4.2.8
Other Contributions
−
13th International Conference on Telecommunications, Technical Programme
Committee, Adolfo Cartaxo, 09-05-2005
−
3rd Symposium on Enabling Optical Networks, Technical Programme
−
Advanced Industrial Conference on Telecommunications [A-ICT 2005].,
Technical Programme Committee, Paulo Monteiro, 17-07-2005
−
CEE05, Scientific Committee, António Teixeira, 14-06-2005
−
Conftele
2005
-
5th
Conference
on
Telecommunications,
Scientific
Telecommunications,
Technical
−
Conftele
2005
-
5th
Conference
on
Programme Committee, Adolfo Cartaxo, 07-04-2005
−
IASTED International Conference on Networks and Communication Systems
(NCS) 2005, Scientific Committee, Adolfo Cartaxo, 18-04-2005
−
ICC, Scientific Committee, António Teixeira, 14-11-2005
−
ICN, Scientific Committee, António Teixeira, 14-10-2005
−
ICTON 05, Scientific Committee, António Teixeira, 09-05-2005
−
International Conference on Service Assurance with Partial and Intermittent
Resources [SAPIR 2005]., Technical Programme Committee, Paulo Monteiro,
21-07-2005
−
M2USIC, Scientific Committee, António Teixeira, 09-08-2005
−
SEON05, Conference Chairman, António Teixeira, 09-05-2005
−
STREON, Scientific Committee, António Teixeira, 09-05-2005
−
WMSCI, Scientific Committee, António Teixeira, 09-05-2005
4.2.8.2 Refereeing
−
3rd International Conference on Education and Information Systems:
Technologies and Applications, Rogério Nunes Nogueira, 01-01-2005
128
−
AICT'06-Advanced International Conference on Telecommunications, Paulo
Monteiro, 09-11-2005
−
Applied Optics, Fernando Tim Tim Janeiro, 22-04-2005
−
Applied Physics B, Carlos Paiva, 16-08-2005
−
Communications and Surveys tutorials, António Teixeira, 14-05-2005
−
Communications Magazine, António Teixeira, 14-01-2005
−
Conferência Iberoamericana em Sistemas, Cibernética and Informática
CISCI 2002, Rogério Nunes Nogueira, 30-07-2005
−
Conftele 2005 - 5th Conference on Telecommunications, Paulo André, 2801-2005
−
Conftele 2005 - 5th Conference on Telecommunications, Rogério Nunes
Nogueira, 03-01-2005
−
Electronics Letters, Adolfo Cartaxo, 13-09-2005
−
Electronics Letters, António Teixeira, 14-05-2005
−
Electronics Letters, Daniel Diogo Trindade Fonseca, 29-12-2005
−
Electronics Letters, Paulo Monteiro, 05-04-2005
−
−
−
Expert for the FP6, António Teixeira, 16-10-2005
−
ICC 2006 Optical Systems and Networks Symposium, Paulo Monteiro, 1111-2005
−
IEE Proc. Optoelectronics, Carlos Paiva, 04-09-2005
−
IEE Proceedings Part J - Optoelectronics, Adolfo Cartaxo, 12-12-2005
−
IEEE / OSA Journal of Lightwave Technology, Adolfo Cartaxo, 27-05-2005
−
IEEE Photonics Technology Letters, Adolfo Cartaxo, 16-02-2005
−
IEEE Photonics Technology Letters, Adolfo Cartaxo, 21-11-2005
−
IEEE/OSA Journal of Lightwave Technology, Paulo Monteiro, 13-06-2005
−
IEEE/OSA Journal of Lightwave Technology, Pedro Ramos, 20-07-2005
−
Journal of Lightwave technology, António Teixeira, 14-06-2005
−
Journal of Non-Crystalline Solids, Paulo André, 20-12-2005
−
Journal of Non-Crystalline Solids, Paulo André, 28-03-2005
−
Journal of the Optical Society of America B, Carlos Paiva, 28-10-2005
−
Optics and Lasers in Engineering, Paulo André, 18-02-2005
−
Optics Communications, António Teixeira, 14-08-2005
129
−
Optics Communications, Paulo André, 15-09-2005
−
Optics Express, Carlos Paiva, 04-09-2005
−
Optics Letters, Carlos Paiva, 19-08-2005
−
SCI 2005 – The 9th World Multiconference on Systemics, Cybernetics and
Informatics, Orlando, Florida, USA, Armando Nolasco Pinto, 18-02-2005
−
Seon 2005, Paulo André, 20-06-2005
−
SEON 2005, Rogério Nunes Nogueira, 19-06-2005
130
ANNUAL REPORT 2005 – NETWORKS & MULTIMEDIA
4.3 Networks and Multimedia
4.3.1
Coordinators
•
Mário Figueiredo
•
Rui Valadas
4.3.2
Human Resources
4.3.2.1 Overview
Degree
Aveiro Coimbra Lisboa
Full Professor
1
1
1
Associate Professor
2
0
4
Assistant Professor
5
10
7
Post. Doc.
0
0
0
0
3
0
Assistant Lecturer
1
8
0
PhD Student
4
7
12
MSc Student
11
4
6
Graduate
22
1
0
TOTAL
46
34
30
Table 23 – Overview of human resources in Networks and Multimedia Area
131
Name
Degree
Position
Group
Luís Borges de Almeida
Agregação
Full Professor
NMMC
Luís Sá
Agregação
Full Professor
SIP- Co
Manuel de Oliveira Duarte
Agregação
Full Professor
NMMC - Av
Fernando Pereira
Agregação
Associate Professor
Image
Mário Figueiredo
Agregação
Assistant Professor
CTPR
Carlos Belo
PhD
Associate Professor
NMMC - Lx
José Brázio
PhD
Associate Professor
NMMC - Lx
José Luís Oliveira
PhD
Associate Professor
NMMC - Lx
Rui Manuel Rocha
PhD
Associate Professor
NMMC - Lx
Rui Valadas
PhD
Associate Professor
NMMC - Av
Abel João Gomes
PhD
Assistant Professor
NMMC - Co
Fernando Lopes
PhD
SIP- Co
Pedro Amado Assunção
PhD
SIP- Co
Sérgio Faria
PhD
SIP- Co
Amaro Sousa
PhD
Assistant Professor
NMMC - Av
Ana Fred
PhD
Assistant Professor
CTPR
António Carlos Almeida
PhD
Assistant Professor
NMMC - Lx
António Nogueira
PhD
Assistant Professor
NMMC - Av
132
Name
Degree
Position
Group
Fernando Perdigão
PhD
Assistant Professor
SIP- Co
João Sobrinho
PhD
Assistant Professor
NMMC - Lx
Luís A. Alexandre
PhD
Assistant Professor
NMMC - Co
Luís Cruz
PhD
Assistant Professor
SIP- Co
Luís Ducla Soares
PhD
Assistant Professor
Image
Maria Manuela C. Pereira de Sousa
PhD
Assistant Professor
NMMC - Co
Maria Paula de Sousa
PhD
Assistant Professor
NMMC - Co
Maria Paula Queluz
PhD
Assistant Professor
Image
Mário Freire
PhD
Assistant Professor
NMMC - Co
Paul Andrew Crocker
PhD
Assistant Professor
NMMC - Co
Paulo Correia
PhD
Assistant Professor
Image
Pedro Araújo
PhD
Assistant Professor
NMMC - Co
Susana Sargento
PhD
Assistant Professor
NMMC - Av
Vitor Silva
PhD
Assistant Professor
SIP- Co
Francisco Fontes
PhD
Assistant Professor
NMMC - Av
Paulo Salvador Ferreira
PhD
Assistant Lecturer
SIP - Co
João Ferreira da Silva
Licenciatura
Graduate
NMMC - Av
Raúl Campos
Licenciatura
Graduate
SIP - Co
Vasco Lagarto
Licenciatura
Graduate
NMMC - Av
Table 24 – Permanent Collaborators working in the Networks and Multimedia Area
133
Name
Degree
Position
Group
José Luís Oliveira
PhD
Associate Professor
NMMC - Av
André Zuquete
PhD
Assistant Professor
NMMC - Av
Marco Gomes
MSc
Assistant Lecturer
SIP- Co
Pedro Daniel Correia
MSc
Assistant Lecturer
SIP - Co
Artur Ferreira
MSc
PhD Student
CTPR
Carla Calado Lopes
MSc
PhD Student
SIP - Co
Carlos Borges Lopes
MSc
PhD Student
NMMC- Av
Daniel Zaragoza
MSc
PhD Student
NMMC - Lx
Frutuoso da Silva
MSc
PhD Student
NMMC - Co
João Ascenso
MSc
PhD Student
Image
Joel Rodrigues
MSc
PhD Student
NMMC - Co
Paulo Nunes
MSc
PhD Student
Image
Carlos Miguel Ribeiro
Licenciatura
Assistant Lecturer
SIP - Co
Hugo Proença
Licenciatura
Assistant Lecturer
NMMC - Co
João Carlos Silvestre
Licenciatura
Assistant Lecturer
SIP- Co
João Paulo Cordeiro
Licenciatura
Assistant Lecturer
NMMC- Co
Paulo Paiva Monteiro
Licenciatura
Assistant Lecturer
SIP- Co
Carlos Jorge Santiago
Licenciatura
PhD Student
NMMC- Av
134
Name
Degree
Position
Group
David Pereira Coutinho
Licenciatura
PhD Student
CTPR
Diogo Gomes
Licenciatura
PhD Student
NMMC - Av
Eduardo Marta
Licenciatura
PhD Student
SIP- Co
Emanuel Martins
Licenciatura
PhD Student
SIP- Co
Hugo Gamboa
Licenciatura
PhD Student
CTPR
João Pedro Oliveira
Licenciatura
PhD Student
CTPR
José Monteiro Morgado
Licenciatura
PhD Student
NMMC - Co
Mariana Almeida
Licenciatura
PhD Student
CTRP
Nuno Rodrigues
Licenciatura
PhD Student
SIP- Co
Rui Costa Cardoso
Licenciatura
PhD Student
NMMC - Co
Sandra V. B. Jardim
Licenciatura
PhD Student
CTPR
Sónia Pelizzari
Licenciatura
PhD Student
CTPR
Vitor Marques
Licenciatura
PhD Student
NMMC - Av
André Lourenço
Licenciatura
MSc Student
CTPR
António Amaral
Licenciatura
MSc Student
NMMC - Av
Catarina Brites
Licenciatura
MSc Student
Image
Duarte Palma
Licenciatura
MSc Student
Image
Fernando Bastos
Licenciatura
MSc Student
NMMC - Av
Helder Vidal
Licenciatura
MSc Student
RCS
135
Name
Degree
Position
Group
Hugo Silva
Licenciatura
MSc Student
CTPR
João Barraca
Licenciatura
MSc Student
NMMC - Av
Jorge Gonçalves
Licenciatura
MSc Student
NMMC - Av
Luís Oliveira
Licenciatura
MSc Student
NMMC - Av
Luisa Caeiro
Licenciatura
MSc Student
RCS
Marco Paulo C. R. Santos
Licenciatura
MSc Student
RMOM- Av
Nuno João Sénica
Licenciatura
MSc Student
NMMC - Av
Nuno Silva
Licenciatura
MSc Student
NMMC - Av
Pedro Alexandre Gonçalves
Licenciatura
MSc Student
NMMC- Av
Pedro Gonçalves
Licenciatura
MSc Student
NMMC- Av
Pedro Naia Neves
Licenciatura
MSc Student
NMMC- Av
Romeu da Silva
Licenciatura
MSc Student
NMMC - Co
Rui Pereira
Licenciatura
MSc Student
NMMC - Co
Rui Pires Fernandes
Licenciatura
MSc Student
SIP- Co
André Miguel Pinto Oliveira
Licenciatura
Graduate
NMMC - Av
António Richard Abreu Silva
Licenciatura
Graduate
RMOM - Av
Délio Filipe Russo Guerra
Licenciatura
Graduate
NMMC - Av
Filipe Cabral Pinto
Licenciatura
Graduate
NMMC - Av
Helder Manuel Lima Veiga
Licenciatura
Graduate
NMMC - Av
136
Name
Degree
Position
Group
Henrique Teixeira de Sousa
Licenciatura
Graduate
NMMC - Av
João Nuno Moreira Rebelo
Licenciatura
Graduate
RMOM- Av
Luís Miguel Silva
Licenciatura
Graduate
NMMC - Av
Nuno Miguel Matos C.M. Inácio
Licenciatura
Graduate
NMMC- Av
Nuno Miguel S. Nunes Roldão
Licenciatura
Graduate
NMMC- Av
Pedro Capão
Licenciatura
Graduate
RMOM- Av
Pedro Salomão Ribeiro Esteves
Licenciatura
Graduate
NMMC- Av
Ricardo Azevedo Guerra Pereira
Licenciatura
Graduate
NMMC- Av
Rui Arnaldo Terra P. N. Costa
Licenciatura
Graduate
NMMC- Av
Rui Filipe Oliveira Teixeira
Licenciatura
Graduate
RMOM- Av
Simão Pedro Silva Torres
Licenciatura
Graduate
RMOM- Av
Vitor António Neves Pinto
Licenciatura
Graduate
NMMC- Av
Vitor Simões Ribeiro
Licenciatura
Graduate
NMMC - Av
Table 25 – Non-permanent Collaborators working in the Neteworks and Multimedia Area
137
4.3.3
The research work, in the area of Networks and Multimedia, performed during the
year of 2005, can be organized in a set of main topics:
-
Architectures and protocols;
-
Traffic engineering;
-
Network operations, Management, and planning;
-
Network Applications and Services
-
Impact of Telecommunications in Society;
-
Processing, analysis and coding of audio and visual information;
-
Pattern recognition and automatic learning;
In the following, we briefly summarize the main achievements in each of these
topics, which are in turn divided into sub-topics.
4.3.3.1 Architectures And Protocols
Routing and abstract algebra - Abstract algebra has been used in many
branches of computer science and electrical engineering, unifying seemingly
unrelated concepts and establishing fundamental results. Continuing the work of
last year, we framed network routing in an abstract algebraic context. The abstract
algebra of network routing has different properties from the conventional algebras
(groups, semirings, rings, etc), and can be regarded as providing a very broad
generalization of shortest-path routing. The concepts of potential---their existence
and uniqueness, forwarding graphs, and convergence of routing protocols are all
encompassed in the new algebra. This algebraic theory found its genesis in trying
to understand and design routing policies for inter-domain routing. And, indeed, the
theory is being used to derive conditions under which competing local routing
policies devised by ISPs guarantee global stability of the Internet.
Metarouting - The abstract algebra framework has also been used to design
computer languages for the specification of routing policies, independently of
138
underlying routing protocols, and which guarantee good Internet behavior. This is a
joint work with Tim Griffin of the University of Cambridge.
Wireless LAN protocols - Research on the channel access mechanisms for
Wireless LANs (WLANs) has led to a better fundamental understanding of the
interaction between data and control packets in systems such as the IEEE 802.11
WLAN and its impact on system performance. More specifically, the interaction
between data packets and MAC acknowledgment packets, on the one hand, and
between data packets and RTS/CTS packets in the RTS/CTS scheme, on the other
hand, were considered. This work led also to an understanding of the suitability of
static parameter multiple access retransmission models for the representation of
the
performance
of
dynamic
retransmission
schemes
such
as
the
Binary
Exponential Backoff used, e.g., in the IEEE 802.11 system.
An allocation problem - We studied the specification and algorithms for the
allocation of teachers to schools according to Portuguese Law. We devised an
efficient algorithm that satisfies the specification implicitly agreed between the
Ministry of Education and the Unions. However, we discovered that that
specification is not optimal and restricts teacher mobility. We proposed a different
specification, still conform to the Law, and devised an efficient algorithm to attain
the
new
specification.
On
the
surface,
this
seems
different
from
a
telecommunications problem. However, diving a bit deeper, we realize that the
mathematical problem at hand is similar to allocation problems found in
telecommunications. This is joint work with Prof. Pedro Aguiar from Instituto de
Sistemas e Robótica.
IPv4-IPv6 transition scenarios - The evolution of IP networks from IPv4 to IPv6
protocol is being addressed by investigating architectures and protocols that can
provide existing and new services in an integrated way and that can work over the
most promising evolution scenarios where both protocols must exist. In this year, a
M.Sc. dissertation was concluded on multicast protocols over IPv4-IPv6 transition
networks. The dissertation examination is to be realized on the first months of
2006.
Heterogeneous
networking
issues
-
Research
has
been
performed
in
heterogeneous networks, focused on the evolution towards fixed and mobile,
convergent, next generation architectures. This work covered areas of: QoS support
139
across different technologies; ad-hoc environments; mixed mobility types and QoS
integration; multicast communications; IP-oriented resource management; grids in
mobile environments; QoS support for WLANs; mobility management in multiaccess environments; wireless sensor networks; fast mobility in IPv6 networks; call
admission control algorithms; active network QoS probing. Complete studies and
prototypes have been performed in order to completely characterise end-to-end
QoS in IP networks, taking into account several important aspects as inter and
intra-domain
mobility,
covering
user,
session
and
terminal
mobility,
user
authentication, etc. In order to control and manage IP network resources, a QoS
control platform has been defined and developed. All the relevant IP network
parameters can be monitored through an IPv6/IPv4 probing system that performs
active network monitoring. A large demonstrator has been setup, covering QoS,
mobility and ad-hoc characteristics, including WiMax, WiFi and DVB technologies.
Work also addressed the network support for grid environments, centered on
concepts for supporting mobile networks.
Multimedia communication architectures and protocols - Work has been
performed on architectures that can be used to control multimedia services (audio,
video and data services) by using SIP (Session Initiation Protocol) and RTSP (Real
Time Streaming Protocol). We have studied the proposed architectures from
standardization bodies like 3GPP IMS TISPAN and 3GPP2 MMD. Migration scenarios
from legacy Intelligent Network to next generation Mobile IN have been defined.
Mobility and quality of service aspects for multimedia services have been deeply
studied and included in the proposed solutions. A multimedia platform has been
specified and implemented, based on SIP and taking into account QoS and network
resource reservations. An IPv6 DiffServ network has been used underneath. The
control and configuration of network reservations can be performed for both SIP
and legacy applications by means of and independent QoS control entities (QoS
Brokers). A prototype has been built, tested and evaluated.
Signalling protocols for optical burst switched mesh networks - We have
presented a performance study of signaling protocols with one-way reservation
schemes in optical burst switched networks. Protocols under study are the
following: Just-in-time (JIT), Just-enough-time, Horizon, JumpStart, and JIT+.
140
Home Networks and Residential Gateways – The technological revolution in
home devices and in home networks in the last years, associated to the delivery of
IP innovative services from the telecommunication’s operators, opens several inhome networking research items. To work these issues the experimentation of
these new technologies and services associated to the development of new features
have been made. Powerline technology, currently the most innovative in-home
network technology, have been tested and integrated in a multi-technological lab
home network with excellent results. The development of a
residential gateway
enabling the integration of the different home technologies and important features
for the future multi-service and multi-provider scenario (e.g. QoS, authentication,
NAPT, DHCP), allows interesting results (e.g. Triple-Play demonstration with QoS)
and a start point for more complex research results in the coming years.
4.3.3.2 Traffic Engineering
Traffic modelling and analysis – We addressed the characterization of general
(non-exponential) ON-OFF sources and their adequacy to model real Internet traffic
data; new results have been obtained on the analysis of the stationary behavior of
queues fed by the superposition of ON-OFF sources. We have explored the use of
traffic models, based on Markov modulated Poisson processes, for short-term
forecasting, with applications in admission control and dynamic bandwidth
allocation. The traffic models under consideration are those for which suitable
parameter fitting procedures where developed in previous years and where seen to
capture self-similarity, long-range dependence and multi-fractality.
Statistical characterization of Internet traffic – We have analysed Internet
traffic using multivariate statistical analysis techniques and neural networks. We
have identified patterns of similar behavior by grouping Internet users according to
measurements carried out in two distinct ISPs. The grouping of the users was
based on their traffic utilization measured every half-hour. Cluster analysis was
used to identify the relevant Internet usage profiles. Using the results of the cluster
analysis,
we
have
addressed
the
classification
of
Internet
users
through
discriminant analysis and neural networks.
141
Congestion control in packet networks – We developed and analyzed new
algorithms
for
feedback
congestion
control
with
applications
to
service
differentiation. We implemented and analyzed congestion control mechanisms for
TCP (alternative TCP procedures for congestion control), subject to rate-based
source notification and rate-based router algorithms. An algorithm has been
devised to implement a weighted max-min fair allocation of bandwidth in the
presence of a minimum (soft-) guaranteed bit rate per source.
Capacity and cross-traffic estimations - The estimation of the link capacity and
its available bandwidth in an end-to-end path is crucial for network management,
admission control and flow control for adaptive applications. This work addresses
the proposal of estimation methodologies able to measure the capacity and the
cross-traffic of all links belonging to the path between a source and a destination
node. The approach resorts to ICMP timestamps and Traceroute concepts, and to
packet pairs and trains dispersions. Through the dispersion values we provide a
methodology to estimate the capacity and cross-traffic in each link. These
mechanisms were evaluated through simulation experiments, and are now being
implemented in a prototype.
Design and traffic engineering of MPLS and MPLS over WDM networks Multiple service network design is being addressed taking particular attention to
both single layer design (MPLS networks) and multi-layer design (MPLS over WDM
networks). On the single layer MPLS case, the network design was studied the
minimum weight routing approach. New integer linear programming models were
proposed that improve the capacity of optimal determination of solutions for
medium sized networks and alternative solving techniques were studied for largescale network design problems. This activity is being done under a Ph.D. workplan
which is planned to be concluded in 2006. On the MPLS over WDM network design
case, problems are being addressed which are a combined WDM lightpath routing,
core LSR placement and LSP routing aiming to determine the least cost network
solution. These problems differ between them on the design requirements spanning
between optical transmission maximum length, LSP maximum number of hops and
fault-tolerance requirements. On the MPLS over WDM case, the traffic engineering
problem is also being addressed where the trade-off between minimization of the
routing
hop-count
vs.
the
maximization
of
network
survivability
is
being
investigated. These activities are been done in collaboration with Prof. Luís Gouveia
142
of Department of Statistics and Operations Research, Faculty of Sciences,
University of Lisbon.
Optimising load balance and resilience of Ethernet networks – In this
activity, we address the problem of how to use the IEEE 802.1S Multiple Spanning
Tree Protocol (MSTP) to improve load balance and resilience of Ethernet carrier
networks. With IEEE 802.1S Multiple Spanning Tree Protocol, an Ethernet operator
can define different network regions. A Common Spanning Tree (CST) is defined in
such a way that a link failure inside a region does not affect the CST outside the
region and additional Spanning Trees inside each region can be configured to
achieve better load balance. MSTP does not define how the network should be
divided in regions, how many Spanning Trees should be created on each region and
how VLANs should be assigned to each Spanning Tree. In fact, one possible option
is to consider the whole network as a single region. There is a trade-off between
the single region case and the multiple regions case. When multiple regions are
defined, the impact of network failures is confined to the regions where they
happened and, therefore, this case is superior in terms of resilience. However,
inside each region, the use of multiple Spanning Trees is confined to the internal
VLANs, which limits the amount of load balancing that can be obtained.
TCP/IP over HF links - Following previous years, a communication platform was
developed for interconnecting two LANs with an HF point-to-point link following the
military standards STANAG 4539 and 5066. The final system is fully operational on
laboratory. It was refined with a few enhancements to be put in operation on the
field. The remaining task is to put it in operation on Navy premises, which was yet
not possible due to outside constraints. This work was supported by Portuguese
Navy.
4.3.3.3 Networks Operations, Management And Planning
Network measurement platforms – We upgraded a Java implementation of the
One-Way Active Measurement Protocol (OWAMP) previously developed. OWAMP is a
recent proposal of the Internet2 group and is currently being standardized by IETF
under the scope of the IPPM group. OWAMP is an architecture to perform active
measurements of one-way delays and losses between hosts. Based on the previous
143
implementation we started the development of the Two-Way Active Measurement
Protocol (TWAMP). We started the development of a distributed traffic monitoring
system with a P2P architecture.
Security on satellite communications – A security architecture was designed for
SaNTA, an architecture designed for accelerating TCP connections through satellite
links. SaNTA uses a split architecture to overcome problems in the TCP congestion
control mechanism when using satellite links. However, such split architecture
cannot easily interoperate with secure communication protocols, that use a end-toend paradigm. The security architecture designed for SaNTA combines in a novel
way several state-of-the-art security solutions: IPSec and SSL/TLS, as well as
packet-filtering firewalls and NAT gateway mechanisms. This security architecture
allows SaNTA to deal properly with end-to-end secure communication protocols,
though not accelerating them, and to properly protect all traffic managed by
SaNTA.
Security in LAN environments – A LAN is not usually considered a dangerous
computing environment, instead it is regarded as a trusted network environment.
Therefore, all management and configuration activities occurring between hosts in a
LAN are not authenticated at all. The result is that the management of LAN is highly
sensitive to several local attacks using origin spoofing techniques. We initiated
research activities for designing a security architecture for cabled LANs capable of
providing a flexible set of security attributes for local communications within the
LAN. The secure architecture should not impose a single protection model for LAN
hosts. Instead, should provide basic services for local authentication and secret key
distribution. This service will then be used to build a flexible set of secure
communication mechanisms within the LAN. Namely, each host uses the keys
distributed to enforce a set of security requirements towards other local hosts. LAN
hosts can even use differentiated policies for dealing with different LAN interactions.
Network security using software agents - We are developing an agent-based
approach for detection and notification of security vulnerabilities in TCP/IP
networked systems. The software agents under development are FIPA-compliant
and allow an intelligent and dynamic detection of security vulnerabilities.
Techno-Economic analysis of networks and services - This thematic area of
research is devoted to the study of the technological, economic and financial
144
aspects associated with the provision of telecommunications networks and services.
The research has encompassed a variety of issues that include socio-territorial
factors
(regional
topology,
demography,
socio-economic
patterns,
available
networks and other infrastructures), technological issues (candidate network
solutions, candidate service offers), regulatory framework and business models.
4.3.3.4 Networks Aplications And Services
Application Servers for Next Generations Networks (NGN) – Study of Service
Delivery Platforms (SDP) on NGN environments, in particular, for SIP and IMS
networks. The JLSEE “mobicents” Application Server was used as a SIP/IMS
Application Server, hosting the next generation applications. A prototype of a
subscriber and administrator portals was implemented, for the purpose of
configuring services running on the SIP/IMS Application Server.
Service Orchestration and Messaging in Service Oriented Architectures
(SOA) – Using the latest orchestration and composition techniques (BPEL4WS) a
prototype has been built, addressing Service Provisioning on ADSL networks. In
particular, the experimentations used the JBoss J2EE container with the jBPM tool,
as well as the Oracle BPEL Process Manager tool. Service Activation EJBs
(Enterprise Java Beans) have been exposed has Web Services, in accordance to the
J2EE 1.4 standard. The latest messaging technology (JMS – Java Message Service)
has been studied and tested, serving as a software backbone to plug-in
services/components in a loosely coupled manner. The TMForum SID model was
used as the information model on the JMS bus, and a set of adapters have been
built to connect the different systems to the JMS bus.
Semantic Web editor - Semantic Web is a new architecture for the Web,
proposed by Tim Berners Lee and W3C Consortium. We are developing an editor
that has as principal goal the creation of web pages for Semantic Web by users that
don’t know the specifications of Semantic Web Architecture. The editor is being
developed as a plug-in for the Eclipse Open Platform (Windows/Linux). The Eclipse
Open Platform is designed for building integrated development environments that
can be used to create applications as diverse as web sites, embedded Java
programs, C++ programs, and Enterprise JavaBeans.
145
4.3.3.5 Impact of Telecommunications In Society
Telecommunications and Society - This area of research is devoted to the study
of the effects of emergent information and communication technologies and
services (in particular telematic services such as Internet) upon different sectors of
human and organizational activity. In addition, the role of telematic services and
networks as basic preconditions for the efficiency of modern productive systems
and catalizers of social and economic development is also addressed.
Good Practices Information and Communication in Society - This area of
research is devoted to the Analysis of the Social Nets as promotion agents of good
practices of the Information and Communication Society. This can be provided by
put into operation an Observatory of Good Practice for the Information Society as
an instrument that allows obtaining, analyzing and distributing information about
the level of use and development of Information, Communication and Technology in
different regions in a systematic way.
4.3.3.6 Processing, Analysis And Coding Of Audio And
Visual Information
Distributed video coding - Distributed source coding (DSC) is an emerging
coding paradigm based on two major Information Theory results: Slepian-Wolf and
Wyner-Ziv theorems. DSC theory relies on the coding of two or more dependent
random sequences in an independent way, i.e. associating an independent encoder
to each sequence, while decoding is jointly performed. Based on the DSC
independent encoding-joint decoding configuration, a new video coding paradigm,
called distributed video coding (DVC), allowing to flexibly allocate complexity
between the encoder and the decoder has emerged. Typically, this is difficult to
achieve with current hybrid video coding where encoders are rigidly more complex,
and thus should facilitate a whole new set of applications. In 2005, the Image
Group continued research on improving the DVC coding efficiency, notably through
better frame interpolation, correlation models, and intra block coding insertion,
both in the pixel and transform domains. During 2005, by developing one of the
best performing DVC codecs available, the IT Image Group conquered a top rank
146
place within research groups working on DVC which is currently the hottest video
coding topic.
Object-based rate control – This area of research activity continued to address
the problem of rate and distortion modeling for “intra” and “inter” coding in the
context of object-based MPEG-4 video encoding.
Object-based error resilience – This activity continued to address the problem of
maximizing the video quality when transmitting object-based video data through
error prone channels. During 2005, the major achievement has been the
development of an adaptive spatio-temporal shape and texture error concealment
scheme. Also scene level concealment for segmented video has been addressed for
the first time. In addition, work on scene level error concealment has started. This
new type of error conceament represents a significant advance with respect to
traditional object-based error concealment techniques, where video objects are
treated independently. In scene level error concealment, however, the whole scene
is considered and video objects are concealed while taking into account the context
in which they are inserted.
Adaptation by transmoding - The growing heterogeneity of networks, terminals
and users and the increasing availability and usage of multimedia content have
been raising the relevance of content adaptation technologies able to fulfill the
needs associated to different usage conditions. During 2005, an application
performing image to video transmoding to increase the user satisfaction by creating
a video following an attention driven approach which browses the image in question
starting from the areas with more interesting objects and thus where the user is
expected to concentrate his/her attention first. This approach considers both a low
level bottom up approach, e.g. based on colour contrast, as well as a high level
approach based on semantics, e.g. faces and text.
Multimedia copyrigth protection - Digital watermarking has been proposed for
multimedia copyright protection or authentication verification; most of the studies
in the IT Image Group, related with the watermarking subject, have also been
concerned with this application field. However, digital watermarking may be useful
in many other application scenarios, not related with rights management. For
instance, in video communication services, since the embedded watermark and the
video data follow the same communications links, the quality of the extracted
147
watermark may allow to dynamically evaluate the effective (i.e., perceived) quality
of
the
provided
video
services.
During
2005,
we
have
investigated
how
watermarking could be used in automatic (still) images quality assessment, when
these images are subject of compression (JPEG and JPEG2000). This study can be
considered has a “proof of concept” on using watermarks has a pilot signal for
quality measurement; it can also be considered as research of foundational nature
since little has been published on the topic. Concerning our participation in the BBone project, during 2005 we have analysed the UMTS and DVB-H trade-off, as
well as the content adaptation requirements and video coding standard(s) to be
considered in an extension of UMTS to MBMS services.
Video segmentation – Work on video segmentation has continued throughout
2005. In particular, our work has focused on the development of segmentation
solutions to be used for biometric recognition applications. Objective video
segmentation quality evaluation continues to be a topic of work.
Biometrics - There has been activity on the recognition of people using biometrics.
A system that recognizes people based on gait, or posture, as they walk, is being
developed, showing promising initial recognition results. A test database for gait
has been created, including 22 test subjects. Work on the recognition of human
activities from video sequences, based on hidden Markov models (aiming at
surveillance applications) has been developed in cooperation with Dr. Jacinto
Nascimento and Prof. Jorge Marques, from Instituto de Sistemas e Robótica.
Image restoration – During 2006, research on image restoration has focused on
methods based on total-variation regularization. We have developed algorithms, of
the majorization-minimization family, to handle denoising, as well as deconvolution,
problems. We have also performed extensive comparisons between wavelet-based
methods and total-variation-based methods for these two types of image
restoration problems. The main conclusions, which are novel, are that waveletbased methods outperform total-variation-based ones in image denoising, while the
opposite is true for image deconvolution problems. We have also developed
algorithms of the same family for adaptive versions of the algorithms, which avoid
the issue of having to adjust the regularization constant. All this work will appear in
top international conferences during the year of 2006 (ICASSP, ICIP, EUSIPCO).
148
Image segmentation – We have continued our work on image segmentation
using spatial priors for continuous fields, which was already mentioned in the
previous annual report. We have extended this approach to use Gaussian field
priors, which allow a very fast implementation via fast Fourier transforms; as far as
we know, this is the first segmentation algorithm working in the Fourier domain,
thus very fast. We have also shown that this approach is an instance of a semisupervised clustering method mentioned below under the topic “Semi-supervised
learning”.
4.3.3.7 Pattern Recognition And Automatic Learning
Clustering and unsupervised learning – In this research area, our work has
concentrated on ensemble methods for clustering, namely exploiting the concept of
“evidence accumulation”. A toolbox of clustering methods, which is an essential
block for research on combination methods, is being developed. The organization of
workshops was another of the activies in this context. Prof. Ana Fred, in
cooperation with Prof. James T. Kwok (Hong Kong University) will co-chair the 11th
International Workshop on Structural and Syntactic Pattern Recognition, which will
be held in Hong Kong, in August 2006. Another scientific meeting which began
preparation during 2005 is the Sixth International Workshop on Pattern Recognition
in Information Systems, which will take place in Paphos, Cyprus, in May de 2006;
Prof. Ana Fred will co-chair this workshop.
Semi-supervised learning – Several research directions in semi-supervised
learning (SSL) were explored during 2005. Most approaches to SSL see the problem
from one of two (dual) perspectives: supervised learning (classification) with
missing
labels;
unsupervised
learning
(namely,
clustering)
with
additional
information. We have obtained research results in both perspectives.
For semi-
supervised learning of classifiers, we have extended our previous
work on non-
transductive SSL to perform active selection of both new labels and new features.
For semi-supervised clustering, we have developed a new mixture-based semisupervised method, which is able to incorporate pair-wise prior information. The
unifying theme is that both methods are built upon logistic regression formulations
and,
from
an
algorithmic
point
of
view,
both
methods
use
expectation-
maximization-type algorithms.
149
Dissimilarity measures for symbolic sequences – In this research front, we
have continued our work on the development of information-theoretic techniques to
measure dissimilarity between symbolic sequences (e.g., text). Informationtheoretic dissimilarity measures are “agnostic” in the sense that they do not
assume any specific generative model, nor do they require estimation of such
models. During 2005, we have completed and published an implementation of the
Ziv-Merhav distance, based on modified Ziv-Lempel parsing schemes, which has
achieved state-of-the-art performance on authorship attribution experiments. We
have also addressed the problem of efficient implementation of these parsing
techniques based on the use of “tries”.
150
4.3.4
Running Projects
4.3.4.1 Overview
Funding Agency
Number
ESF
1
EU
1
EU,IST Programme
5
FCT/POSC
5
FCT/POSI
1
INSTICC
1
Internal
6
INTERREG III-B
1
IT/LA
3
PT Inovação
2
SUDoE INTERREG III-B
1
TOTAL
27
Table 26 – Number of active projects in the Networks and Multimedia Area during 2005
151
Acron / Ref
Akogrimo / FP6/2002/4293
Title
Access to Knowledge through the Grid in a mobile World
Descript.
Mobility has become a central aspect of life of citizens in business,
education,
and
leisure.
Related
mobility-enabled
3G
network
infrastructures and user communities have surpassed corresponding
Internet figures. Independent of this development, Grid technology is
evolving from a niche market solely addressing the HPC domain towards
a framework useable within a broad business context. However, while
affecting largely identical complex applications, user and provider
domains, the Grid community has been basically Mobility-unaware.
Taking this into account, Akogrimo - by leveraging the large base of
mobile users - is aiming to radically advance the pervasiveness of Grid
computing across Europe. In order to achieve this goal, in addition to
embracing layers and technologies which are supposed to make up the
so-called Next Generation Grids such as e.g. knowledge-related and
semantics-driven Web services, Akogrimo will archi-tect and prototype a
blueprint of an NGG which exploits and closely co-operates with evolving
Mobile IP(v6) infra-structures. Politically, these infrastructures are
considered as the Beyond-3G enabler. From a technically point of view,
Akogrimo will especially leverage mobility, QoS, AAA and security
functionalities provided by corresponding net-work-related middleware
systems of such infrastructures. From a user’s point of view, Akogrimo
will provide the technologies and concepts to establish “virtual home”,
mo-nadic and mobile environments for complex problem solving across
network technology and provider domains. In generalizing the core Grid
concept – namely the resource-sharing concept - Akogrimo will pattern
these environments as “Mobile Dynamic Virtual Organizations“. The
MDVO concept will incorporate network-identity-based concepts of
personalization,
profiling,
privacy,
security
and
trust.
From
152
the
provider’s point of view, an Akogrimo world will provide new business
models and opportunities eventually making commercially viable NGGs a
reality.
Acron / Ref
AcuRec
Title
Acoustic Modelling for Speech Recognition
Descript.
The main objective of this project is the automatic training of the
acoustic model in a speech recognition system. The approach to follow
consists in the reliable detection of acoustic events that identify anchor
points and short segments for which phonetic labels will be estimated.
This will be done in an iterative manner using previous phone models
and confidence measures of its correct classification. The spectral
analysis system will also include features with perceptual significance
with integration periods higher and lower than the normally used ones.
In order to increase the segmentation accuracy we intend to also use
speaker normalization and adaptation techniques.
Acron / Ref
Title
COST 279
Analysis and Design of Advanced Multiservice Networks supporting
Mobility, Multimedia and Internetworking
Descript.
The main objective of the Action is to develop techniques for the
analysis,
design
and
control
of
advanced
multiservice
networks
supporting mobility, multimedia and interworking, by means of the
development and application of new and better analytical techniques for
the mathematical understanding and optimisation of the behaviour of
communications equipment, protocols, and network topologies and
architectures, and of economic aspects such as pricing principles and
network cost estimation.
153
Acron / Ref
Title
AtlantisBPnet
AtlantisBPnet - Observatory of Information Society in the Atlantique
Space
Descript.
Analyse and share the information about the development degree and
use of the Information and Communication Technologies in the Atlantic
Space.
Acron / Ref
CYBERAL
Title
CYBERAL - Broadband in Rural Zones
Descript.
Decreasing the dificulties that some rural and peripherical regions of the
countries of the european SouthWest handle, related to the access to
the Information Society, particulary the Internet.
Acron / Ref
Title
Euro-NGI
Design and Engineering of the Next Generation Internet, Towards
Convergent Multi-Service Networks
Descript.
Euro-NGI is a Network of Excellence from the Sixth Framework
Programme, Priority 2, Information Society Technologies (IST), of the
European Community. The main objective of the Euro NGI network is to
create and maintain the most prominent European center of excellence
in
Next
Generation
Internet
design
and
engineering,
acting
as
a”Collective Intelligence Think Tank”, representing a major support for
the European Information Society industry and leading towards a
European leadership in this domain. The recent technological advances
will lead to exploitable innovative services once the integration of these
technologies through innovative architectures is achieved. The Next
Generation Internet (NGI) will offer view multi-service/multimedia,
mobility, convergence (services and fixed-mobile), Quality-of-Service
and variable connectivity as the norm. On one hand, future high-speed
154
wire-line
and
wireless
access
technologies
provide
instant
high
bandwidth connectivity, which makes difficult to forecast traffic and thus
to apply existing traffic engineering methods. On the other hand, the
technology diversity explodes and mastering such a heterogeneous
environment becomes essential to the network designer. This requires
investigation into new multi-technology architectures. It is understood
today that new design, planning, dimensioning and management
principles are needed. In this context, the main topics addressed by the
NoE are: - Mastering the technology diversity (vertical and horizontal
integration) for the design of efficient and flexible NGI architectures. Providing required innovative traffic engineering architectures adapted
to the new requirements and developing the corresponding appropriate
quantitative
methods.
The
network
experts
bring
the
required
competences on the various technologies that will be integrated. They
also bring a worldwide recognize expertise on the various topics that
composes the traffic engineering and optimal dimensioning domain. Due
to the wealth of technologies and tools, achieving the above cited
objectives requires the integration of European research capacities to
reach a critical mass.
Acron / Ref
Title
Daidalos / IST-2002-506997
Designing Advanced Interfaces for the Delivery and Administration of
Location independent Optimised personal Services
Descript.
The objective of Daidalos is to develop and demonstrate an open
architecture based on a common network protocol (IPv6), that becomes
a significant step towards approaching the Daidalos vision. The overall
Daidalos objectives are to: • Design, prototype and validate the
necessary infrastructure and components for efficient distribution of
services over diverse network technologies beyond 3G, • Integrate
complementary network technologies to provide pervasive and usercentred access to these services, • Develop an optimised signalling
system for communication and management support in these networks,
155
• Demonstrate the results of the work through strong focus on usercentered and scenario-based development of technology.
Acron / Ref
Title
Descript.
DISCOVER / FP6/2002/15314
Distributed coding for video services
Over the past decade several video coding technologies have emerged to
achieve great commercial success and it is widely expected that digital
video systems will completely replace all existing traditional analogue
based video systems during the next decade. DISCOVER will address the
development of several advanced digital video coding technologies which
are very likely to represent a breakthrough in new video coding
application
scenarios.
Until
now
video
coding
research
and
standardization have been adopting a video coding paradigm where it is
the task of the encoder to explore the source statistics, leading to a
complexity balance where complex encoders interact with simpler
decoders. This paradigm is strongly dominated and determined by
applications
such
as
broadcasting,
video
on
demand,
and
video
streaming. Distributed Video Coding (DVC) adopts a completely different
coding paradigm by giving the decoder the task to exploit - partly or
wholly - the source statistics to achieve efficient compression. This
change of paradigm also moves the encoder-decoder complexity balance,
allowing the provision of efficient compression solutions with simple
encoders and complex decoders. This new coding paradigm, never
considered by any video coding standard, is particularly adequate to
emerging applications such as wireless video cameras and wireless
lowpower surveillance networks, disposable video cameras, certain
medical applications, sensor networks, multi-view image acquisition,
networked camcorders, etc., where low complexity encoders are a must
because memory, computational power, and energy are scarce. The
objective of DISCOVER is to explore and propose new video coding
schemes and tools in the area of Distributed Video Coding with a strong
potential for new applications, targeting new advances in coding
156
efficiency, error resiliency, scalability, and model based-video coding thus
paving the way for a breakthrough regarding the next video coding
generation.
Acron / Ref
DMeSTrES / IT/LA/306/2005
Title
Distributed Measurement System with Traffic Engineering Support
Descript.
The main objective of this project is to develop a software prototype of a
traffic engineering tool, integrating traffic measurements and traffic
analysis. The traffic measurement platform will be based on a novel
peer-to-peer (P2P) architecture recently proposed by the research team
in [Sal05a]. This work will rely on previous experience of the research
team in the development of traffic measurement tools (see, for
example,
http://www.av.it.pt/jowamp).
Traffic
analysis
will
be
performed in the peer elements of the measurement platform in a
distributed way. Again, this work will rely on previous experience of the
research
team
in
the
areas
of
traffic
modelling
and
statistical
characterization. Such a distributed architecture brings the benefit of
allowing easy and flexible integration of new traffic analysis modules.
The tool is expected to attract attention of the research community
working in this area. One of the goals of traffic measurements is to
support timely and efficient traffic engineering tasks, which requires
sophisticated traffic analysis methodologies. As referred above, the
research team has been much involved in this field. However, one of the
main weaknesses in this field is the lack of software applications that
integrate the developed methodologies in a way that is easy to use by
non-specialists. This project will try to overcome this problem.
157
Acron / Ref
EMUSuL / POSC/EEA-SRI/61924/2004
Title
Ensemble Methods in Unsupervised and Semi-Supervised Learning
Descript.
This is a fundamental research project in the area of machine learning.
Accordingly, the goals are of methodological, theoretical and algorithmic
nature. More specifically, the project aims at: - developing cluster
combination techniques, in which partitions, clusters and even samples
can assume different weights in the combination strategies. - integrating
common and state-of-the-art clustering algorithms in the combination
process - creating a theoretical framework for the analysis of clustering
combination techniques and cluster validity - extending combination
techniques used in supervised and unsupervised learning to the semisupervised
scenario.
-
applying
the
developed
methodologies
to
challenging learning problems (both unsupervised and semi-supervised),
such as document classification, web page classification, and geneexpression data analysis.
Acron / Ref
Title
ESTIP
ESTudo, desenvolvimento e experimentação de soluções inovadoras em
redes IP
Descript.
Actividades de estudo, implementação e experimentação nas áreas de:
• Gestão de recursos de rede e de recursos multimédia em redes IP
heterogéneas • Redes de acesso e residenciais all-IP O trabalho a
desenvolver
neste
projecto
deverá
consolidar
conhecimentos
em
aquisição e complementar actividades desenvolvidas pela PT Inovação
em áreas tecnológicas inovadoras e de aplicabilidade no curto/médio
prazo. As diversas áreas técnicas serão abordadas de uma forma
integrada, envolvendo-se nas várias fases do projecto componentes de
rede, serviços e aplicações.
158
Acron / Ref
Title
ESTIP (II)
ESTudo, desenvolvimento e experimentação de soluções inovadoras em
redes IP (II)
Descript.
Actividades de estudo, implementação e experimentação nas áreas de:
• Gestão de recursos de rede e de recursos multimédia em redes IP
heterogéneas • Redes de acesso e residenciais all-IP O trabalho a
desenvolver
neste
projecto
deverá
consolidar
conhecimentos
em
aquisição e complementar actividades desenvolvidas pela PT Inovação
em áreas tecnológicas inovadoras e de aplicabilidade no curto/médio
prazo. As diversas áreas técnicas serão abordadas de uma forma
integrada, envolvendo-se nas várias fases do projecto componentes de
rede, serviços e aplicações.
Acron / Ref
STEINER / POSC/EIA/63046/2004
Title
Geometric engine of inhomogeneous implicit surfaces with singularities
Descript.
Habitualmente, a representação de superfícies implícitas não ultrapassa
o
domínio
de
superfícies
homogéneas,
não
sendo possível
pois
representar singularidades de dimensão inferior tais como pontos
isolados, curvas remanentes e auto-intersecções. Sendo assim, os
objectivos essenciais deste trabalho são os seguintes: -Desenvolver
algoritmos de renderização de superfícies implíctas não-homogéneas e
com preservação topológica. - Aplicar o conhecimento adquirido em
aplicações biomédicas, mais concretamente, na representação de orgãos
humanos: veias, esqueleto, etc.
Acron / Ref
H2M / IT/LA/320/2005
Title
H.264 to MPEG-2 Video Transcoder for Digital TV
Descript.
The main goal of this project is to develop a real-time H.264 to MPEG-2
software transcoder for video adaptation in Digital Television (DTV)
159
services. On the one hand, the latest international video coding
standard, ITU.T H.264, achieves high coding efficiency by employing
advanced techniques such as variable block size motion estimation,
optimised R-D mode decision, intra prediction, and multiple reference
frames. On the other hand, MPEG-2 is the most common video standard
adopted by the multimedia industry, where it finds a broad range of
applications in digital TV, DVD, etc. Due to the higher coding efficiency
of H.264, it is expected that this new standard will replace MPEG-2
compression in digital video systems. However, the complete migration
will take several years, given the wide scale use of MPEG-2 based
equipments in the market place today. Also, the MPEG-2 technology is
widely spread and its cost is unbeatable.
Acron / Ref
Title
HCI
Reconhecimento de Padrões Cognitivos e Afectivos na Interacção
Pessoa-Computador
Descript.
The main objectives
are the design and implementation of an
experimental setup and a coherent methodological, algorithmic and
computational tool set to acquire and process emotion-related signals
during computer assisted problem solving. The signals monitored and
analised consist of electro-physiological data and computer interaction
data. This setup is twofold: to assess such emotional states under
rigorous and controlled experiments; to test the ability of the several
types of data for authentication purposes.
Acron / Ref
HAN-4G / IT/LA/300/2005
Title
Integration of Heterogeneous Access Networks in a 4G Architecture
Descript.
The project aims to address issues on heteregenous integrated
networks: (1) integration between infrastructure and ad-hoc networks;
(2) integration between 802.16 networks and fixed wired (Ethernet) and
160
wireless
networks
(802.11
in
managed
and
ad-hoc
mode);
(3)
integration of unidirectional broadcast networks in operator networks;
(4) seamless and fast mobility with QoS support between each access
technology.
Acron / Ref
SCALE III / POSC/EIA/60061/2004
Title
Internet Traffic Measurements, Modelling and Statistical Analysis
Descript.
This project aims at making a significant contribution in the area of
Internet traffic engineering by addressing important issues concerned
with advanced traffic measurements schemes and statistical analysis,
and traffic modelling and control. It gives continuity to the research that
this interdisciplinary team has been carrying out since 2000 within the
scope
of
projects
SCALE
POSI/CPS/34826
and
PERMNET
(POSI/CPS/42069). The project is expected to have a strong impact on
the network dimensioning and resource management of the future
Internet. Its workplan comprises the following five tasks: Task 1
addresses the statistical analysis of Internet traffic. Following work
started in project PERMNET, special attention will be given to the use of
multivariate statistical analysis techniques to characterize the behaviour
of Internet users and the dependencies between user behaviour, user
location and network performance. The task will also address the
characterization of traffic burstiness, given the lack of simple insightful
procedures to reach, in practice, conclusions about traffic processes
from burstiness descriptors. In Task 2 we will continue work started in
project PERMNET involving fast parameter fitting procedures for traffic
models capable of capturing the scaling behaviour observed in Internet
traffic. Besides improving the previously developed fitting procedures,
we will focus on the derivation of fast online parameter updating
algorithms and short-term model-based forecasting procedures for
admission control and resource allocation. Task 3 deals with traffic
measurements
and
utilizes
results
from
Tasks
1
and
2.
Most
measurement systems can be characterized by having minimal storage
161
and processing at the measurement probes, which may result in large
volumes of data being transferred to the collector. We will research two
alternative solutions for this problem: the use of sampling techniques
and system architectures where the probes provide a comprehensive
description of the traffic (via a traffic model or a set of traffic
descriptors). A system with these characteristics will be specified and
developed. In Task 4 we will address the impact of the high variability of
Internet traffic due to unresponsive traffic on the throughput of long TCP
flows. This is an important question for network operators, in particular
to charge their heavy users and to regulate the traffic. We will derive
formulas and qualitative results for the performance of long flows. Task
5 will study bounds and approximations for IP traffic processes and
performance measures. Following work started in project PERMNET, we
will address the approximation of IP traffic through packet level ON-OFF
models, by combining information on the packet size distribution and
packet interarrival process. In addition, we will derive stochastic bounds
for performance measures of Internet networks with non-Poissonian
interarrival times, emphasizing the sample-path approach, which is
useful when comparing, via simulation, performance measures of the
involved processes.
Acron / Ref
Title
CONDENSA / POSC/EIA/CPS/60247/2004
IPv4/IPv6-Compliant Optical Burst Switching Network Design with
Enhanced Signaling Architectures
Descript.
Up to now, research work on optical burst switching (OBS) networks has
been concentrated on packets of version 4 of Internet Protocol (IPv4),
called IPv4 datagrams. However, due the exhaustion of the IPv4
addressing space, it is expected that a transition from IPv4 to IPv6
(Internet Protocol version 6) will occur before the maturity of a scalable
optical packet switching technology. This project addresses several
issues of OBS networks in a transition scenario from IPv4 to IPv6. This
project is organized into four tasks addressing: 1) new burst assembly
162
algorithms for edge routers to natively support IPv4/IPv6 datagrams
and IPv6 jumbograms; 2) the specification of an enhanced version of
the Just-in-Time (EJIT) signalling protocol for core routers; 3) IPv4/IPv6
- compliant QoS Support using prioritized burst segmentation and
composite burst-assembly techniques 4) the development of a testbed
of an IPv4/IPv6- compliant OBS network.
Acron / Ref
MPEG
Title
ISO MPEG standardization
Descript.
Specification of audiovisual representation standards (MPEG-4, MPEG-7
and MPEG-21).
Acron / Ref
ITAPSN
Title
Issues in Transport Architectures and Protocols for Satellite Networks
Descript.
The objective of this project is to continue the study of issues on
transport architectures and protocols for satellite networks left open at
the end of the TPSAT project. These issues include (i) the study of
alternative
possessing
the
same
funcionality
as
the
architecture
developed in the TPSAT proejct, but without the extra connecting layer,
(ii) the systematic study of control mechanisms for a transport protocol
for the satellite link segment in a split architecture, and (iii) the
integration of the architecture developed with the bandwidth-on-demand
mechanisms to be available in the next-generation DVB-RCS satellites.
Acron / Ref
MROUTE
Title
Metarouting
Descript.
Internet routing protocols evolved in an ad hoc manner as the Internet
grew in importance and dimension. They are divided into Exterior
163
Gateway Protocols (EGP), of which there is only BGP, and Interior
Gateway Protocols, which abound. BGP is flexible, allowing for the
realization of complex routing policies that reflect the commercial
relationships Internet domains establish between themselves. However,
these routing policies may conflict leading to BGP instability. In addition,
BGP has slow convergence properties, even when the routing policies
lead to convergence. IGPs, on the other hand, lack flexibility, as
witnessed by BGP being pressed into operation as an IGP. In this work,
we develop a broad and unifying theory of dynamic network routing.
The goals of this theory are (i) to develop a framework for the design
and specification of routing policies, independently of the underlying
routing protocol; (ii) to derive general results (theorems) on the
convergence properties of routing policies and see them applied on
specific routing protocols; (iii) to extract a meta-language for routing
with automatic validation of convergence properties. The theory is based
on non-classical algebraic concepts.
Acron / Ref
MA-LAN
Title
Multiple Access for Wireless and Ad-Hoc Networks
Descript.
Even though the IEEE 802.11 family of wireless LANs has been in use
for a long time, some aspects of the operation of their basic channel
access mechanisms, CSMA and RTS-CTS, are nonetheless not well
enough understood, namely the interaction between acknowledgment
and data packets in topologies with interfering cells. This project
continues the studies performed so far at IT on this topic, in particular
with the objective of understanding the fundamental limitations to the
throughput obtained in typical environments, both with application to
wireless LANs and to ad-hoc networks.
164
Acron / Ref
VISNET / Proposal/Contract No: 506946
Title
Networked audiovisual media technologies
Descript.
VISNET aims to create a sustainable world force of leading research
groups in the field of networked audiovisual (AV) media technologies
applied to home platforms. The member institutions have grouped
together to set up a network of excellence with a clear vision for
integration, research and dissemination plans. The research activities
within VISNET will cover several disciplines related to networked AV
systems and home platforms.
Acron / Ref
Title
NSCBRRI / POSC/EEA-CPS/61271/2004
Novel Statistical Criteria for Blind Restoration and Reconstruction of
Images
Descript.
This project will address new, statistically based methods for image
restoration and reconstruction. The fundamental approach consists of
using representations of natural images yielding sparse and nearindependent coefficients. This goal will be pursued along two main lines:
1. Methods relying on a fixed, wavelet-based representation. The project
shall extend existing methods of denoising, and of deblurring using a
known blur operator, to the blind deblurring / denoising situation. The
main approach will consist of taking the blur operator as an additional
unknown in a Bayesian formulation of the problem. 2. Methods relying on
a learned, ICA-based, spatially invariant representation. The project shall
address new image models, consisting of an i.i.d. source followed by a
learned, linear or nonlinear, spatially invariant filter, and their application
to the blind deblurring problem. Besides blurred natural images, the
project will also address the reconstruction of other classes of images,
namely those formed through tomographic methods.
165
Acron / Ref
COST 292
Title
COST 292 - Semantic Multimodal Analysis of Digital Media
Descript.
The main objective of this action is to push forward the frontiers of
current research on semantic analysis, inference and conceptualisation
for high-level annotation and retrieval of digital audiovisual content. The
action includes 6 Working Groups: - WG1: Focused on providing common
testing data and frameworks; - WG2: Comparison and evaluation of
different methods and unification towards a common framework; - WG3:
Work towards better representations, reduction of the dimension of the
feature space and multimodal feature fusion; - WG4: Collaborative
research on automatic paradigms for semantic annotation focusing on
video scene analysis and data and rule mining; - WG5: Collaborative
research on semi-automatic paradigms for semantic annotation focusing
on user’s relevance feedback and intelligent and evolutionary learning; WG6: Collaborative research to evaluate and use the developed
framework in real world applications.
Acron / Ref
SDWN
Title
Service Differentiation in Wireless Networks
Descript.
The ''last frontier'' of the Internet is the wireless interface that provides
connectivity to users of mobile or wireless services. Given its limitations
on bandwidth and channel characteristics, the wireless interface is seen
as the weakest link in the provision of end-to-end Internet services. The
main objective of this project is the analytical study of mechanisms to
support service differentiation at the wireless interface. Included in the
objectives is also the study of the characteristics (in particular, long
range dependence) of the offered traffic generated by random access
multiple access schemes.
166
Acron / Ref
SCALE II / POSI/42069/CPS/2001
Title
Trafic Modelling and Performance Evaluation of Multiservice Networks
Descript.
This project aims at proposing the adoption of traffic models based on
real traffic traces to support the design and management of the future
Internet. The project will initially extend the work initiated in the SCALE
project to develop fitting procedures for MMPPs, through the proposal
and implementation of procedures to fit Batch Markovian Arrival
Processes and Markov Modulated Compound Poisson Processes. These
processes are able to reproduce accurately the first-order statistics and
the autocovariance structure for the time scales of interest, so as to
describe appropriately the long-range dependence characteristics that
are common in observed traffic. Other processes exhibiting these
properties will also be explored, and.g., the autoregressive process with
Markov regime. Overall, the model fitting activities will be constrained
by the need to match the traffic characteristics that have more impact in
network performance, within the time scales of interest. The impact of
splitting the traffic in classes according to its statistical properties is also
investigated by extracting models for each individual class from the
aggragate traffic data and studying their interdependencies.
167
4.3.5
Final Year Projects
Supervisor
Amaro Sousa
Francisco Fontes
Student
Rui Fernandes &
Tiago Costa
Title
End Date
Development of a Network
Laboratory Platform for IP
6/2005
Multicast Services
Gonçalo de Lemos Gestor de recursos de rede IP de
& Pedro Franco
B3G
Francisco Fontes
Justino Santos
Mobilidade em novas redes IP
Luís Ducla Soares
André da Silva
Internet Service Provider for
Television
6/2005
6/2005
6/2005
Ana Rita Morgado
Paulo Nunes
& Carina Ramos & Mobile Insurance Selling Solution
6/2005
Pedro Filipe Silva
Aníbal Manuel de
Carlos Guerra &
Oliveira Duarte
Jorge Oliveira
Aníbal Manuel de
Oliveira Duarte
Interactive System for the
Inovation and Technological
7/2005
Transfer
Telematic Platform for Processing
Rui Santos
Management and Workflow for
7/2005
Aveiro Norte Program
Logistic Systems for the
Aníbal Manuel de
Oliveira Duarte
Tiago Sousa
Identification and Management
of Material Flows in Industrial
7/2005
Environament
João Nuno Matos
Vitor Canhão &
Alexandre Carreira
Home Networks
7/2005
168
Supervisor
Susana Sargento
Susana Sargento
Susana Sargento
Susana Sargento
Student
Title
Joaquim Silva &
Qualidade de Serviço para
Paulo R. Silva
Aplicações Multimédia
Paulo Renato Silva
& Nuno Silva
End Date
7/2005
Arquitectura de Qualidade de
Serviço para Suporte de Serviços
7/2005
e Aplicações Multimédia
Rafael Sarrô &
Integração de Redes Móveis Ad-
Davide Moreira
Hoc com Redes Fixas
Renato Gaio &
Sistema de Avaliação do Estado
Valter Matos
das Redes IP
7/2005
7/2005
Logistic Systems for the
Aníbal Manuel de
Oliveira Duarte
Rui Marques
Identification and Management
of Material Flows in Industrial
9/2005
Environament
Fernando Perdigão
Paulo Campos &
Viseme modeling for face
Helder Louro
animation from the speech signal
9/2005
Desnvolvimento de uma
Luís Cruz
Catarina Francisco plataforma de comunicação de
9/2005
vídeo H.264
Luís Cruz
Marco Gomes
Marco Gomes
Paulo Correia
Fernando Pereira
Nuno Sequeira
Rodrigues
João Gonçalves
Ricardo Marques &
Cláudio Neves
David dos Santos
& Jorge Fazenda
Pedro Pinho &
Joel Baltazar
Desenvolvimento de uma
plataforma de comunicação de
9/2005
vídeo H.264
Verilog/VHDL model for LDPC
Decoding
LDPC decoding on DSP
9/2005
9/2005
Detecção e reconhecimento de
pessoas com base em
9/2005
informação vídeo
Attention based image to video
transmoding
10/2005
169
Supervisor
Amaro Sousa
Amaro Sousa
Student
Title
Álvaro Afreixo &
Network Laboratory Platform for
Vitor Branca
IP Convergence
Gil Sousa Soares
Performance Optimisation of
Ethernet Networks
End Date
6/2006
6/2006
Identificação, implementação e
Francisco Fontes
Jorge Costa Loura
teste de cenários e algoritmos de
controlo de admissão em redes
6/2006
IP
Francisco Fontes
José Nogueira &
Pedro Paupérrio
Serviços e redes residenciais:
interfaces e infra-estrutura de
6/2006
suporte para Operadores e ISP
Construção de protótipo de
Francisco Fontes
Nuno Marques
ferramenta para diagnóstico de
6/2006
redes IP
Luís Ducla Soares
José Nunes Pedro
Improved Video Coding Based on
Perceptual Models
6/2006
José Simões &
Audio Conferencing over VoIP
Ravic Costa
Systems
Carlos Sá da Costa
Rui Carreiro
Billing System
7/2006
Carlos Sá da Costa
Tiago Martins
Invoice System
7/2006
Bruno Andrade &
DVB streaming em modo
Alberto Neves
multicast
Paulo Nunes
Fernando Lopes
6/2006
7/2006
Avaliação da qualidade de
Maria Paula Queluz
Pedro Sesinando & serviço em comunicação de
João Pedreiro
imagem, baseada em técnicas de
7/2006
marca-de-água.
Paulo Correia
Fernando Pereira
Tiago Sanches &
Reconhecimento de Pessoas
João Antunes
Usando Múltiplas Biométricas
Armando Godinho Image clustering and
Dâmaso
classification in a photo album
7/2006
9/2006
170
Supervisor
Fernando Pereira
Marco Gomes
Student
Title
Ricardo José
Low complexity MPEG-4 AVC
Cipriano Almeida
encoding
Alexandre Sengo & DVB-S2 FEC Decoder on FPGA
Vitor Sengo
XLINX
End Date
9/2006
9/2006
Table 27 – List of Final Year Projects running in the Networks and Multimedia Area During
2005
MSc Theses
Supervisor
Susana Sargento
Student
Pedro Vieira
Title
Sistemas de Gestão e Recolha de
Informação Médica
Arlindo Oliveira
Confidence Measures for Speech
Veiga
Recognition and OOV Detection
Susana Sargento
Filipe Cunha
Simulação de Redes em ns-2
Susana Sargento
Romeu Silva
Fernando Perdigão
Encriptação em Cenários de Voz
sobre IP
End Date
2/2005
3/2005
4/2005
4/2005
Intercalibration of NOAA and
Maria Paula Queluz
Carla Sofia Barroso
METEOSAT Window Channel
Brightness Temperatures (in
5/2005
portuguese)
Ana Fred
Aníbal Manuel de
Oliveira Duarte
André Lourenço
Unsupervised Learning Methods
and Combination Strategies
7/2005
E-learning Strategies in PostSara da Silva Petiz Secondary Education in the north
7/2005
region of Aveiro
171
Supervisor
Aníbal Manuel de
Oliveira Duarte
Aníbal Manuel de
Oliveira Duarte
Student
Title
End Date
Integrated Networks with QoS:
João Pais da Rocha Broadband in Rural and
9/2005
Peripheral Areas
Integrated Networks with QoS:
José Pedro Borrego Dimensioning and Techno-
9/2005
Economic Analysis
Rui Valadas
Cristiano Pereira
Rui Manuel Rocha
Hélder Tomé Vidal
Carlos Sá da Costa
Reme Almeida
Fernando Pereira
Catarina Brites
Security in IEEE 802.11 Wireless
Local Area Networks
Mobility Management in Multi
Access Environments
Estudo da Latencia em Cluster
Linux
Advances in distributed video
coding
10/2005
11/2005
12/2005
12/2005
Triangulação de Superfícies
Abel João Gomes
Adriano Raposo
Implícitas Degeneradas através
de Amostragem baseada num
1/2006
Corrector de Newton
Susana Sargento
Paulo Fonseca
Amaro Sousa
António Amaral
Simulação de uma rede de
telecomunicações de 4ª geração
Multicast Routing on IP Networks
1/2006
2/2006
An analytical study on Resource
Francisco Fontes
Ricardo Pereira
Management entity in future
2/2006
networks
Amaro Sousa
Daniel Martins
Amaro Sousa
Emanuel Moreira
QoS Network Design: a Decision
Supporting System
Survivable Routing on GMPLS
over SDH Networks
3/2006
3/2006
172
Supervisor
Student
Title
End Date
Mecanismos de Facturação
Rui L. Aguiar
João Paulo Barraca Segura em Redes Auto-
3/2006
Organizadas
Rui L. Aguiar
João Plácido
Qualidade de Serviço sobre
Santos
Redes Móveis Heterogéneas
Rui L. Aguiar
Vítor Jesus Silva
Rui L. Aguiar
José Rui Nunes
Rui L. Aguiar
Susana Sargento
Nuno Sénica
António Teixeira
João Paulo
Susana Sargento
Madaleno
Contributos para a Qualidade de
Serviço em Redes Móveis Ad-Hoc
Novas sinalizações de Qualidade
de Serviço para Redes Móveis
Fast-Mobility mechanisms on
QoS-enabled networks
3/2006
3/2006
5/2006
5/2006
Transporte de informação
directamente sobre sistemas de
6/2006
comunicação ópticos
Qualidade de Serviço em Redes
Susana Sargento
Pedro Neves
de Acesso IEEE 802.16 –
Integração em Cenários de
6/2006
Redes Heterogéneas
Susana Sargento
Sílvia Rocha
QoS and Routing in SelfOrganized Networks
6/2006
Selecção de Características em
Ana Fred
Hugo Silva
Sistemas de Reconhecimento de
8/2006
Padrões
Carlos Almeida
Fernando Pereira
Rui L. Aguiar
Jorge Borreicho
TCP with Rate-Based Congestion
Control
Joel Morais da
Multiview distributed video
Costa Rego
coding
Vitor Pinto
Pedro Amado Assunção Lino Ferreira
Plataformas de serviços
residenciais
Motion estimation for low delay
MCTF scalable video coders
9/2006
9/2006
10/2006
11/2006
173
Supervisor
Student
Title
End Date
G-Cyber: Ambiente Web Virtual
Abel João Gomes
Rui Sérgio Viegas
Distribuído de Objectos
Rodrigues
Geométricos de Resolução
12/2006
Variável
Pedro Amado Assunção Paulo Cordeiro
Rui Valadas
Carla Ribeiro
Rui Valadas
Filipe Cunha
Rui Valadas
Valter Bouça
Sérgio Faria
IPTV rate-distortion optimised
streaming
QoS in IP Access Networks
Simulation of Communication
Networks using NS-2
Traffic Engineering Tool for
Telecommunications Networks
Rui V. P.
Error Concealment for Video
Fernandes
Applications
12/2006
12/2006
12/2006
12/2006
12/2006
Table 28 - List of MSc. Theses running in the Networks and Multimedia Area During 2005
PhD Theses
Supervisor
Student
Title
End Date
Statistical Characterization and
Rui Valadas
António Nogueira
Traffic Modelling for
3/2005
Communications Networks
Traffic Modelling in IP Networks:
Rui Valadas
Paulo Salvador
Markovian Models and Models
4/2005
based on Lindenmayer Systems
Aníbal Manuel de
Oliveira Duarte
Fernando Oliveira
Bibliographic Archive for the
Scientific Production
9/2005
174
Supervisor
Student
Aníbal Manuel de
Fernando Valente
Oliveira Duarte
Ramos
Title
Internet Pricing
End Date
9/2005
Poligonização de Curvas e
Abel João Gomes
José Morgado
Superfícies Implícitas NãoHomogéneas com Preservação
11/2005
Topológica
Arquitecturas Escaláveis de
Susana Sargento
Rui Prior
Redes com Suporte de Qualidade
12/2005
de Serviço
Estruturas Poligonais
Abel João Gomes
Frutuoso da Silva
Deformáveis com Resolução
1/2006
Variável
Dimensioning and Resource
Amaro Sousa
Carlos Lopes
Management of Multi-Service
3/2006
Networks
Aníbal Manuel de
Oliveira Duarte
Techno-economic Analysis of
Ricardo Ferreira
Telecommunications Networks
7/2006
and Services
Fernando Pereira
Paulo Nunes
Mário Freire
Joel Rodrigues
Rate control for object-based
video coding architectures
Sinaling Protocols for Optical
Burst Switched Mesh Networks
7/2006
7/2006
Information Extraction in
Mário Freire
Rui Costa Cardoso Distributed Environments Using
7/2006
Agents Technology
Carlos Belo
Daniel Zaragoza
Ana Fred
Hugo Gamboa
ON-OFF Traffic in Packet
Networks
Models in Learning Systems: a
Bayesian Approach
10/2006
12/2006
175
Supervisor
Fernando Perdigão
Student
Carla Calado Lopes
Title
Automatic processing techniques
for speech recognition
End Date
12/2007
Capacity Enhancement of
Maria Paula Queluz
Pedro Vieira
Wireless Communications
12/2007
Systems using MIMO Techniques
Mário Figueiredo
Artur Ferreira
Mário Figueiredo
David Coutinho
Mário Figueiredo
João Pedro Oliveira
Hybrid generative/discriminative
supervised learning
Data retrieval and classification
using information distances
Wavelet-based image
reconstruction and restoration
12/2007
12/2007
12/2007
Sinalização de QoS em Redes de
Rui L. Aguiar
Diogo Gomes
4ª Geração com suporte de
12/2007
difusão
Codificação de dados utilizando
Sérgio Faria
Nuno Rodrigues
correspondência aproximada de
2/2008
padrões multiescala recorrentes
Fernando Pereira
Catarina Brites
Fernando Pereira
João Ascenso
Distributed video coding:
improving the RD performance
Rate control for distributed video
coding systems
6/2008
6/2008
Quality-of-service in video
Maria Paula Queluz
Tomás Brandão
communications, based on
6/2008
watermarking.
Kernel based methods for text
Mário Figueiredo
André T. Martins
retrieval and semantic
12/2008
desambiguation
Mário Figueiredo
Sandra Jardim
Analysis of microrray gene
expression data
12/2008
176
Supervisor
Student
Title
Luís Henrique Martins
Mariana Leite de
Separation of nonlinear mixtures
Borges de Almeida
Almeida
of signals
Abel João Gomes
Hugo Filipe
Avaliação Automática em
Sistemas de e-Learning
End Date
11/2009
12/2009
Table 29 - List of PhD Theses running in the Networks and Multimedia Area During 2005
177
4.3.6
Publications
4.3.6.1 Architectures And Protocols
Book Chapters
- Freire, M. M.; P.P. Monteiro; H. J. A. Silva; “Ethernet Passive Optical Networks: A
High-Speed and Low-Cost Solution for Residential Access”- Chapter in Encyclopedia
of Multimedia Technology and Networking, Margherita Pagani, Idea-Group Inc.,
2005.
- Rodrigues, J.; M. M. Freire; P. Monteiro; P. Lorenz; “Optical Burst Switching: A
New Switching Paradigm for High-Speed Internet”- Chapter in Encyclopedia of
Multimedia Technology and Networking, Margherita Pagani, Idea-Group Inc., 2005
Papers in Journals
- Sobrinho, J. L. S.; “An Algebraic Theory of Dynamic Network Routing”, IEEE/ACM
Trans. on Networking, Vol. 13, No. 5, pp. 1160 - 1173, October, 2005.
- Aguiar, R. L.; V. Marques; M. Liebsch; A. M. O. Duarte; “Evaluation of a Mobile
IPv6-based Architecture Supporting User Mobility, Quality of Service and AAAC in
Heterogeneous Networks”, IEEE Journal on Selected Areas in Comm., Vol. 23, No.
11, pp. 2138 - 2155, November, 2005.
- Sargento, S.; “Secure Routing in Ad Hoc Networks”, Journal of Communications
Technology and Electronics, Vol. 1, No. 4, pp. 277 - 300, October, 2005.
- Cuevas Casado, A. C.; J. Moreno; R. L. Aguiar; “Usability and Evaluation of a
Deployed 4G Network Prototype”, Journal of Communications and Networks, pp.
222 - 230, June, 2005.
- Aguiar, R. L.; J.P.B. Barraca; S. Sargento; “A Lightweight and Secure SessionAware Ad-Hoc Charging Protocol”, Proc International Conf. on Telecommunications
- ConTEL, Cape Town, South Africa, May, 2005.
178
- Aguiar, R. L.; D. Gomes; S. Sargento; “A Next-Generation IPv6 QoS Architecture
Integrating Heterogeneous Multicast and Broadcast Networks”, Proc International
Conf. on Telecommunications - ConTEL, Cape Town, South Africa, May, 2005.
- Aguiar, R. L.; D. Gomes; S. Sargento; “A Next-Generation IPv6 QoS Architecture
Integrating Heterogeneous Multicast and Broadcast Networks – Part II”, Proc
International Conf. on Telecommunications - ConTEL, Cape Town, South Africa,
May, 2005.
- Aguiar, R. L.; P. Neves; S. Sargento; “Implementation Of QoS Support in IEEE
802.16 Access Networks”, Proc Conf. on Telecommunications - ConfTele, Tomar,
Portugal, May, 2005.
- Griffin, T.; J. L. S. Sobrinho; “Metarouting”, Proc ACM SIGCOMM, Philadelphia,
United States, Vol., pp. 1 - 12, August, 2005.
- Kristiansen, AND.; A. Nunes; J. Brázio; A. Zuquete; “Satellite Network Transport
Architecture (SaNTA)”, Proc AIAA International Communications Satellite Systems
Conference - ICSSC, Rome, Italy, Vol. 1, pp. I000037-01 - I000037-10,
September, 2005.
- Aguiar, R. L.; J.P.B. Barraca; S. Sargento; “The Polynomial-Assisted Ad-hoc
Charging
Protocol”,
Proc
IEEE
International
Symp.
on
Computers
and
Communications - ISCC, Cartagena, Spain, Vol. 0, pp. 0 - 0, June, 2005.
- Sobrinho, J. L. S.; R. de Haan; J. Brázio; “Why RTS-CTS is not your ideal wireless
LAN multiple access protocol”, Proc IEEE Wireless Communications and Networking
Conference - WCNC, New Orleans, United States, Vol., March, 2005.
4.3.6.2 Network Applications and Services
Book Chapters
- Cardoso, R.; M. M. Freire; “Detection of Security Vulnerabilities and Exposures in
Internet Systems and Services”- Chapter in Encyclopedia of Multimedia Technology
and Networking, Margherita Pagani, Idea-Group Inc., 2005.
179
- Freire, M. M.; R. Pereira; “Semantic Web: The Next Generation World Wide Web”Chapter in Encyclopedia of Multimedia Technology and Networking, Margherita
Pagani, Idea-Group Inc., 2005.
Papers in Journals
- Velez, F. J.; C. Franco; J. Ferreira; R. Rei ; “Classificação de Aplicações and
Cenários de Operação em UMTS melhorado”, COMUNICAÇÕES – Revista da
Associação Portuguesa para o Desenvolvimento das Comunicações, Vol. 19, No.
158, March, 2005.
-
Ferreira,
J.;
F.
J.
Velez;
“Enhanced
UMTS
Services
and
Applications
Characterisation”, Telektronikk – Strategies in Telecommunications, Vol. 101, No.
1, pp. 113 - 131, March, 2005.
- Sargento, S.; J.P.B. Barraca; R. L. Aguiar; “A Lightweight and Secure SessionAware Ad-Hoc Charging Protocol”, Proc IEEE International Symp. on Computers and
Communications - ISCC, Cape Town, South Africa, Vol. 1, pp. 1 - 1, May, 2005.
- Lopes, F.; “A Low-Cost System for Remote Fetal Cardiotocography”, Proc
International Conference on Electrical Engineering - CEE'05, Coimbra, Portugal, Vol.
I, pp. 63 -, October, 2005.
- Ribeiro, N.; J. Brázio; “A platform for Universal Access to Applications”, Proc
International Workshop on Ubiquitous Computing - IWUC, Miami, FL, United States,
Vol. W04, pp. 60 - 66, May, 2005.
- Crisostomo, S.; S. Sargento; “A QoS Architecture Integrating Mobile Ad-Hoc and
Infrastructure Networks”, Proc IEEE International Symp. on Computers and
Communications - ISCC, a, Egypt, Vol. 1, pp. 1 - 1, January, 2005.
- Sargento, S.; D. Gomes; R. L. Aguiar; “A QoS Next-Generation IPv6 Architecture
Integrating Heterogeneous Multicast and Broadcast Networks – Part 1”, Proc IEEE
International Symp. on Computers and Communications - ISCC, Cape Town, South
Africa, Vol. 1, pp. 1 - 1, May, 2005.
- Sargento, S.; D. Gomes; R. L. Aguiar; “A QoS Next-Generation IPv6 Architecture
Integrating Heterogeneous Multicast and Broadcast Networks – Part 2”, Proc IEEE
180
International Symp. on Computers and Communications - ISCC, Cape Town, South
Africa, Vol. 1, pp. 1 - 1, May, 2005.
- Almeida, A. C. M.; C. Belo; “Analysis and Implementation of a Stateless
Congestion Control Algorithm”, Proc International Symp. on Performance Evaluation
of Computers and Telecommunications Systems - SPECTS, Philadelphia, United
States, Vol. ISBN 1-56555-300-4, pp. 180 - 192, July, 2005.
- Sargento, S.; “Avaliação do Desempenho de Sistemas de Segurança com Suporte
de WPA”, Proc Conf. sobre Redes de Computadores - CRC, Portalegre, Portugal,
Vol. 1, pp. 1 - 1, September, 2005.
- Sargento, S.; “Comparação do Desempenho entre Sistemas de Segurança com
Suporte de WPA and IPSec”, Proc Simpósio de Electrónica das Telecomunicações,
Covilhã, Portugal, Vol. 1, pp. 1 - 1, November, 2005.
- Sargento, S.; R. Prior; D. Gomes; “End-to-end QoS Architecture for 4G
Scenarios”, Proc IST Mobile Wireless Summit, Dresden, Germany, Vol. 1, pp. 1 - 1,
June, 2005.
- Sargento, S.; J.P.B. Barraca; R. L. Aguiar; “Evaluation of MANET charging
protocols in hotspots scenarios”, Proc Conf. sobre Redes de Computadores - CRC,
Portalegre, Portugal, Vol. 1, pp. 1 - 1, September, 2005.
- Prior, R.; S. Sargento; D. Gomes; R. L. Aguiar; “Heterogeneous Signaling
Framework for End-to-end QoS support in Next Generation networks”, Proc
International Conf. on System Sciences, Hawaii, United States, Vol. 1, pp. 1 - 1,
January, 2005.
- Neves, P.; S. Sargento; R. L. Aguiar; “Implementation of QoS Support in IEEE
802.16 Access Networks”, Proc Conf. on Telecommunications - ConfTele, Tomar,
Portugal, Vol. 1, pp. 1 - 1, April, 2005.
- Neves, P.; S. Sargento; R. L. Aguiar; S. Crisostomo ; “Integration of Ad Hoc
Networks
with
Infrastructure
Networks
-
a
QoS
Perspective”,
Proc
IEEE
International Symp. on Computers and Communications - ISCC, Stocolm, Sweden,
Vol. 1, pp. 1 - 1, May, 2005.
- Almeida, A. C. M.; C. Belo; “Mechanisms for Stateless Service Differentiation in
Best-Effort Networks”, Proc IASTED - International Conference on Computer
Systems and Applications, Banff, Alberta, Canada, Vol. 1, pp. 182 - 189, July,
2005.
181
- Sargento, S.; J.P.B. Barraca; S. Crisostomo ; “Mobile Ad-Hoc Networks
Integration in the Daidalos Architecture”, Proc IST Mobile Wireless Summit,
Dresden, Germany, Vol. 1, pp. 1 - 1, June, 2005.
- Prior, R.; S. Sargento; R. L. Aguiar; “Providing End-to-End QoS in 4G Networks”,
Proc IASTED International Conf. on Communication Systems and Networks - CSN,
Marina del Rey (CA), United States, Vol. 1, pp. 1 - 1, October, 2005.
- Prior, R.; S. Sargento; “QoS and Session Signalling in a 4G Network”, Proc IEEE
International Conf. on Networks, Kuala Lumpur, Malaysia, Vol. 1, pp. 1 - 1,
November, 2005.
- Cardoso, R.; M. M. Freire; “SAPA: Software Agents for Prevention and Auditing of
Security Faults in Networked Systems”, Proc International Conf. on Information
Networking - ICOIN, Jeju, Korea, South, Vol. 3391, pp. 80 - 88, February, 2005.
- Silva, R.; S. Sargento; “Segurança do H.323 - a Norma H.235”, Proc Conf. sobre
Redes de Computadores - CRC, Partalegre, Portugal, Vol. 1, pp. 173 - 182,
September, 2005.
- Sargento, S.; “Segurança do H.323 - a norma H.235”, Proc Conf. sobre Redes de
Computadores - CRC, Portalegre, Portugal, Vol. 1, pp. 1 - 1, September, 2005.
-
Sargento,
S.;
“Segurança
no
SIP”,
Proc
Simpósio
de
Electrónica
das
Telecomunicações, Covilhã, Portugal, Vol. 1, pp. 1 - 1, November, 2005.
- Sargento, S.; P. Neves; R. L. Aguiar; “Supporting Multicast in Ad-Hoc networks in
a
Hotspot
Context”,
Proc
IEEE
International
Symp.
on
Computers
and
Communications - ISCC, Ile de Peroquiles, France, Vol. 1, pp. 1 - 1, June, 2005.
- Neves, P.; S. Sargento; “The DAIDALOS Architecture for QoS over Heterogeneous
Wireless Networks”, Proc IST Mobile Communications Summit, Dresden, Germany,
Vol. 1, pp. 1 - 1, June, 2005.
- Sargento, S.; J.P.B. Barraca; R. L. Aguiar; “The Polynomial-Assisted Ad-hoc
Charging
Protocol”,
Proc
IEEE
International
Symp.
on
Computers
and
Communications - ISCC, Cartagena, Spain, Vol. 1, pp. 1 - 1, June, 2005.
182
Project Reports
- Queluz, M.P.; “Analysis of UMTS FDD/TDD, WLAN, DVB-H and Satellite
Technologies Solutions for Broadcast and Multicast Services”, IST-IT, IST-2003507607, March, 2005.
- Sargento, S.; “Detailed Specifications including complete Interface Specifications”,
UC3M, IST-2202-506997, January, 2005.
- Queluz, M.P.; “Final Report on Broadcasting and Cellular System Requirements
and Content Adaptation”, IST-IT, IST-2003-507607, November, 2005.
4.3.6.3 Network Operations, Management and Planning
Papers in Journals
- Aguiar, R. L.; V. Marques; M. Wetterwald; AND. Melin; J. Moreno; A. C. Cuevas
Casado; M. Liebsch; R. Schmitz; P. Pacyna; “Moby Dick: A Pure-IP 4G
Architecture”, Computer Communications Journal, Vol. 0, No. 0, pp. 0 - 0, March,
2005.
- Lopes, C. B.; A. F. Sousa; L. Gouveia; “Combined Link Dimensioning and Weight
Assignment of Minimum Weight Routing Networks”, Proc International Conf. on
Next Generation Internet Networks - NGI, Rome, Italy, Vol. 1, pp. 1 - 1, April,
2005.
- Cabral, O. Cabral; F. J. Velez; V. Vassiliou ; G. Hadjipollas; M. Stylianou; J.
Antoniou; A. Pitsillides; “Enhanced UMTS Cost/revenue Optimisation in office
scenarios”, Proc IEE 3G Conf., London, United Kingdom, Vol. 1, pp. 523 - 527,
November, 2005.
- Zaragoza, D.; C. Belo; “Experimental Validation of the ON-OFF Packet-Level Model
for IP Traffic”, Proc International Symp. on Performance Evaluation of Computers
183
and Telecommunications Systems - SPECTS, Philadelphia, United States, Vol. ISBN
1-56555-300-4, pp. 772 - 782, July, 2005.
- Lopes, C. B.; A. F. Sousa; “Heuristics for the MPLS Network Design with Single
Path Minimum Weight Routing”, Proc International Working Conf. on Performance
Modeling and Evaluation of Heterogeneuous Networks - HET-NETs, Ilkley, United
Kingdom, Vol. 1, pp. 48.1 - 48.10, July, 2005.
- Sebastião, D.M.; J. Cardeiro; L. M. Correia; “Optimisation of Base Stations
Placement on an Existing UMTS-FDD Radio Network”, Proc International Symp. on
Wireless
Personal
Multimedia
Communications
WPMC,
Aalborg,
Denmark,
September, 2005.
- Cardoso, R.; M. M. Freire; “Towards Autonomic Minimization of Security
Vulnerabilities
Exploitation
in
Hybrid
Network
Environments”,
Proc
Joint
International Conf. on Autonomic and Autonomous Systems and International Conf.
on Networking and Services - ICAS-ICNS, Papeete, French Polynesia, Vol., pp. 80 88, October, 2005.
4.3.6.4 Network Performance Evaluation and Design
Books
- Brázio, J.; S. Wittevrongel; K. Tutschku; P. Olivier; M. Menth; AND. Karasan; M.
Fiedler; W. Burakowski; A. Beben; N. Akar; P. Tran-Gia; Analysis and Design of
Advanced
Multiservice
Networks
Supporting
Mobility,
Multimedia,
and
Internetworking, José Brázio, Springer-Verlag, Dordrecht, The Netherlands, 2005.
Papers in Journals
- Sargento, S.; A. Brodgesell; “QoS-aware Fast Handover Optimization Supported
by Multicast Networks”, Rev. do Dep. de Electrónica and Telecomunicções da Univ.
Aveiro, Vol. 4, No. 3, pp. 1 - 1, March, 2005.
184
- Rodrigues, C.; L. M. Correia; “Analysis of the influence of multiservice users’
mobility on UMTS-FDD performance”, Proc IEEE International Symp. on Personal,
Indoor and Mobile Radio Commun - PIMRC, Berlin, Germany, Vol., September,
2005.
- Fernandes, P.; L. M. Correia; “Capacity Increase in Converging Mobile
Communication Systems Through the Use of MIMO”, Proc IEEE Vehicular
Technology Conf., Dallas, United States, Vol., September, 2005.
- Correia, L. M.; “Some results of the research activities of GROW (A Group for
Research On Wireless)”, Proc Conf. on Telecommunications - ConfTele, Tomar,
Portugal, Vol., April, 2005.
- Santo, L.; L. M. Correia; “UMTS Performance in Multi-Service Non-Uniform Traffic
Networks”, Proc International Conf. on Telecommunications - ConTEL, Cape Town,
South Africa, Vol., May, 2005.
4.3.6.5 Pattern Recognition and Automatic Learning
Books
- Gamboa, H.; A. L. N. Fred; Pattern Recognition in Information Systems, Hugo
Gamboa and Ana Fred, INSTICC PRESS, Lisbon, 2005.
Book Chapters
- Krishnapuram, B.; D. Williams; Y.X. Xue; A. Hartemink; L. Carin; M. A. T.
Figueiredo; “On semi-supervised classification”- Chapter in Neural Information
Processing Systems 17, L. Saul, Y. Weiss, L. Bottou, MIT Press, Cambridge, MA,
2005.
185
Papers in Journals
- Fred, A. L. N.; A. K. Jain; “Combining Multiple Clusterings using Evidence
Accumulation”, IEEE Trans. on Pattern Analysis and Machine Intelligence, Vol. 27,
No. 6, pp. 835 - 850, June, 2005.
- Nascimento, J. M. P.; J. Dias; “Does Independent Component Analysis Play a Role
in Unmixing Hyperspectral Data?”, IEEE Trans. on Geoscience and Remote Sensing,
Vol. 43, No. 1, pp. 175 - 187, January, 2005.
- Krishnapuram, B.; L. Carin; M. A. T. Figueiredo; A. Hartemink; “Learning sparse
Bayesian classifiers: multi-class formulation, fast algorithms, and generalization
bounds”, IEEE Trans. on Pattern Analysis and Machine Intelligence, Vol. 27, No. 6,
pp. 957 - 968, June, 2005.
- Martins, A.; P. Aguiar; M. A. T. Figueiredo; “Orientation in Manhattan:
equiprojective classes and sequential estimation”, IEEE Trans. on Pattern Analysis
and Machine Intelligence, Vol. 27, No. 5, pp. 822 - 826, May, 2005.
- Almeida, L.B.A.; “Separating a Real-Life Nonlinear Image Mixture”, Journal of
Machine Learning Research, Vol. 6, No. 1, pp. 1199 - 1232, July, 2005.
- Nascimento, J. M. P.; J. Dias; “Vertex Component Analisys: A Fast Algorithm to
Unmix Hyperspectral Data”, IEEE Trans. on Geoscience and Remote Sensing, Vol.
43, No. 4, pp. 898 - 910, April, 2005.
- Krishnapuram, B.; D. Williams; Y.X. Xue; M. A. T. Figueiredo; A. Hartemink;
“Active Learning of Features and Labels”, Proc Workshop on Learning with Multiple
Views - ICML, Bonn, Germany, Vol., pp. 43 - 50, August, 2005.
- Santos, J.; J. Sá; L. Alexandre; “Batch-Sequential Algorithm for Neural Networks
Trained with Entropic Criteria”, Proc International Conf. on Artificial Neural
Networks - ICANN, Warsaw, Poland, Vol. LNCS 3697, pp. 91 - 96, September,
2005.
- Lourenço, A.; A. L. N. Fred; “Ensemble Methods in the Clustering of String
Patterns”, Proc IEEE Workshop on Applications of Computer Vision, Colorado,
United States, January, 2005.
186
- Nascimento, J. M. P.; J. Dias; “Estimação do Subespaço de Sinal em Dados
Hiperespectrais”,
Proc
Jornadas
Científico-Pedagógicas
em
Engenharia
Electrotécnica and Electrónica, Lisbon, Portugal, Vol. to appear, November, 2005.
- Horta, N.H.; D. Simões ; “Evolving Standards in AND-Learning: A Case-Study”,
Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol., April, 2005.
- Coutinho, D.; M. A. T. Figueiredo; “Information theoretic text classification using
the Ziv-Merhav method”, Proc Iberian Conf. on Pattern Recognition and Image
Analysis, Estoril, Portugal, Vol. II, pp. 355 - 362, June, 2005.
- Nascimento, J. M. P.; J. Dias; “Mixture of Dirichlet sources applied to
hyperspectral unmixing”, Proc EARSEL Symposium, Oporto, Portugal, Vol. -, pp. 0 0, June, 2005.
- Silva, L.; J. Sá; L. Alexandre; “Neural Network Classification using Shannon's
Entropy”, Proc European Symposium on Artificial Neural Networks - ESANN, Bruges,
Belgium, Vol. 1, pp. 217 - 222, April, 2005.
- Silva, L.; L. Alexandre; J. Sá; “Neural Network Classification: Maximizing ZeroError Density”, Proc International Conf. on Advances in Pattern Recognition ICAPR, Bath, United Kingdom, Vol. LNCS3686, pp. 127 - 135, August, 2005.
- Santos, J.; J. Sá; L. Alexandre; “Neural Networks Trained with the EEM Algorithm:
Tuning the Smoothing Parameter”, Proc WSEAS Int. Conference on Neural
Networks, Lisboa, Portugal, Vol. 4, pp. 295 - 300, June, 2005.
- Nascimento, J. M. P.; J. Dias; “Signal Subspace Identification in Hyperspectral
Linear Mixtures”, Proc Iberian Conf. on Pattern Recognition and Image Analysis,
Estoril, Portugal, Vol. LNCS - 3523, pp. 207 - 214, June, 2005.
- Proença, H.; L. Alexandre; “UBIRIS: A noisy iris image database”, Proc
International Conf. on Image Analysis and Processing - ICIAP, Cagliari, Italy, Vol. 1,
pp. 970 - 977, September, 2005.
187
4.3.6.6 Processing, Analysis, and Coding of Audio and
Visual Information
Book Chapters
- Figueiredo, M. A. T.; “Bayesian Image Segmentation Using Gaussian Field Priors”Chapter
in
Energy
Minimization
Methods
in
Computer
Vision
and
Pattern
Recognition, A. Rangarajan, B. Vemuri, and A. Yuille, Springer-Verlag, Berlin, 2005.
- Pereira, F.; “MPEG: Context, Goals, and Working Methodologies”- Chapter in The
MPEG-21 Book, I. Burnett, F. Pereira, R. van de Walle, R. Koenen, John Wiley &
Sons, London, 2005.
- Pereira, F.; “Multimedia Content Description in MPEG-7 and MPEG-21”- Chapter in
Multimedia Content and Semantic Web: Methods, Standards and Tools, Giorgos
Stamou and Stefanos Kollias, John Wiley & Sons, 2005.
Papers in Journals
- Jardim, S. V. B.; M. A. T. Figueiredo; “Automatic segmentation of fetal ultrasound
images”, Ultrasound in Medicine and Biology, Vol. 31, No. 2, pp. 243 - 250,
February, 2005.
- Barroso, C.; I. Trigo; C. Dacamara; M.P. Queluz; “Intercalibration of NOAA and
Meteosat window channel brightness temperatures”, International Journal of
Remote Sensing, Vol. 26, No. 17, pp. 3717 - 3733, September, 2005.
- Diepold, K.; F. Pereira; W. Chang; “MPEG-A: multimedia application formats”,
IEEE Multimedia, Vol. 12, No. 4, pp. 34 - 45, October, 2005.
- Figueiredo, M. A. T.; R. Nowak; “A Bound Optimization Approach to WaveletBased Image Deconvolution”, Proc IEEE International Conf. on Image Processing ICIP, Genoa, Italy, Vol. 2, pp. 782 - 785, September, 2005.
188
- Pereira, F.; “A triple user characterization model for video adaptation and quality
of experience evaluation”, Proc IEEE Workshop on MultiMedia Signal Processing MMSP, Xangai, China, October, 2005.
- Natário, L. P.; F. Pereira; “Adaptive GOP Size in the MPEG-4 Scalable Video
Coding”, Proc Conf. on Speech and Image Processing, Multimedia Communications
and Services - EURASIP, Smolenice, Slovakia, July, 2005.
- Figueiredo, M. A. T.; “Bayesian image segmentation using wavelet-based priors”,
Proc IEEE Conf. on Computer Vision and Pattern Recognition - CVPR, San Diego,
United States, Vol. 1, pp. 437 - 443, June, 2005.
- Pietrowcew, A.; P. Nunes; A. Buchowicz; W. Skarbek; “Bitrate Control Techniques
for
Video
Coding
with
Region
of
Interest”,
Proc
National
Conference
on
Radiocommunications and Broadcasting, Krakow, Poland, Vol. 1, pp. 73 - 82, June,
2005.
- Brites, C.; F. Pereira; “Distributed Video Coding: Bringing New Applications to
Life”, Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, April, 2005.
- Trapanese, A.; M. Tagliasacchi; S. Tubaro; J. Ascenso; C. Brites ; F. Pereira;
“Embedding a Block-based Intra Mode in Frame-based Pixel Domain Wyner-Ziv
Video Coding”, Proc International Workshop on Very Low Bitrate Video, Sardinia,
Italy, September, 2005.
- Faria, S.F.; N.R. Rodrigues; V. Silva; “H.264/AVC Based Video Coding Using”,
Proc International Workshop on Very Low Bitrate Video, Sardinia, Italy, Vol. *, pp.
* - *, September, 2005.
- Latorre, P.; G. Peris-Fajarnes; M. A. T. Figueiredo; “Image segmentation for the
application of the Neugebauer color prediction model for inket printed ceramic
tiles”, Proc International Conf. on Image Analysis and Recognition, Toronto,
Canada, Vol. 1, pp. 9 - 16, September, 2005.
- Pietrowcew, A.; A. Buchowicz; W. Skarbek; P. Nunes; “Improved ROI Dependent
Bit Allocation for Video Coding”, Proc Workshop On Immersive Communication And
Broadcast Systems, Berlin, Germany, October, 2005.
- Trapanese, A.; M. Tagliasacchi; S. Tubaro; J. Ascenso; C. Brites ; F. Pereira;
“Improved Correlation Noise Statistics Modeling in Frame-based Pixel Domain
Wyner-Ziv Video Coding”, Proc International Workshop on Very Low Bitrate Video,
Sardinia, Italy, September, 2005.
189
- Ascenso, J.; C. Brites ; F. Pereira; “Improving Frame Interpolation with Spatial
Motion Smoothing for Pixel Domain Distributed Video Coding”, Proc Conf. on
Speech and Image Processing, Multimedia Communications and Services EURASIP, Smolenice, Slovakia, July, 2005.
- Ascenso, J.; C. Brites ; F. Pereira; “Motion Compensated Refinement for Low
Complexity Pixel Based Distributed Video Coding”, Proc IEEE International Conf. on
Advanced Video and Signal Based Surveillance, Sardinia, Italy, September, 2005.
- Silva, F. S.; A. Gomes; “Oversimplified Euler Operators for a Non-Oriented, Nonmanifold B-Rep Data Structure”, Proc International Symp. on Visual Computing IVC, Lake Tahoe, Nevada, United States, Vol. LNCS 3804, pp. 25 - 34, December,
2005.
- Valadão, G. ; J. Dias; “Phase Unwrapping Via Graph Cuts”, Proc EARSEL
Symposium, Porto, Portugal, Vol. 1, pp. 222 - 242, June, 2005.
- Amado, T.; L. Crespo; R.F.S. Caldeirinha; P.A. Assunção; “Radio Planning of
WLANs
for
Broadband
Multimedia
Streaming
Applications”,
Proc
Conf.
on
Telecommunications - ConfTele, Tomar, Portugal, Vol. 1, pp. * - *, April, 2005.
- Nascimento, J.; M. A. T. Figueiredo; J. S. Marques; “Recognition of human
activities
using
space
dependent
switched
dynamical
models”,
Proc
IEEE
International Conf. on Image Processing - ICIP, Genoa, Italy, Vol. 3, pp. 852 - 855,
September, 2005.
- Pereira, F.; “Sensations, perceptions and emotions: towards quality of experience
evaluation
for
consumer
electronics
video
adaptations”,
Proc
International
Workshop on Video Processing and Quality Metrics for Consumer Electronics,
Scottsdale, United States, January, 2005.
- Natário, L. P.; C. Brites ; J. Ascenso; F. Pereira; “Side Information Extrapolation
for Low-Delay Pixel-Domain Distributed Video Coding”, Proc International Workshop
on Very Low Bitrate Video, Sardignia, Italy, September, 2005.
- Soares, L. D.; F. Pereira; “Spatial Texture Error Concealment for Object-based
Image and Video Coding”, Proc Conf. on Speech and Image Processing, Multimedia
Communications and Services - EURASIP, Smolenice, Slovakia, June, 2005.
- Assunção, P.A.; L.F. Ferreira; “Spatiotemporal Scalability Based on Nonscalable
H.264/AVC Codecs”, Proc Conf. on Telecommunications - ConfTele, Tomar,
Portugal, Vol. 1, pp. * - *, April, 2005.
190
- Valadão, G. ; J. Matos; C. Oliveira; J. Fonseca; M. Santos; F. Novali ;
“Subsidências Para a Região de Lisboa por PSInSAR: Análise Preliminar de
Resultados”, Proc Conf. Nacional de Cartografia and Geodesia, Lisboa, Portugal, Vol.
1, pp. 378 - 383, April, 2005.
- Faria, S.F.; N.R. Rodrigues; V. Silva; “Universal Image Coding Using Multiscale”,
Proc IEEE International Conf. on Image Processing - ICIP, Genova, Italy, Vol. II, pp.
245 - 248, September, 2005.
- Santos, D.; J. Fazenda; P.L. Correia; “Using Gait to Recognize People”, Proc
EUROCON - The International Conference on”Computer as a tool", Belgrado, Serbia
& Montenegro, Vol.., pp.. -., November, 2005.
-
Correia,
P.L.;
F.
Pereira;
“Visual
Technologies
for
Advanced
Applications:Contributions by the IST-IT Image Group”, Proc International Conf. on
Telecommunications - ConTEL, Tomar, Portugal, April, 2005.
Project Reports
- Pereira, F.; “MPEG-7: a contribution to understand the present and plan the
future”, ISO/IEC/JTC1/SC29/WG11, April, 2005.
4.3.6.7 Traffic Engineering
- Reis, C.; L. M. Correia; “An analytical traffic model for the UMTS-FDD radio
interface”, Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol.,
April, 2005.
- Monteiro, V.M.; R. L. Aguiar; A. Gameiro; “An IP Interface for Simulation of
Packet Data Performance in Cellular Networks”, Proc Conf. on Telecommunications ConfTele, Tomar, Portugal, Vol. 0, pp. 0 - 0, April, 2005.
- Nogueira, A. N.; R. Oliveira; P. S. Ferreira; R. Valadas; A. Pacheco; “Classification
of Internet users using discriminant analysis and neural networks”, Proc Conf. on
Computer Networks, Rome, Italy, Vol. 1, pp. 1 - 1, April, 2005.
191
- Gouveia, L.; P. Patrício; A. F. Sousa; “Hop-Constrained Node Survivable Network
Design:
an
Application
to
MPLS
over
WDM”,
Proc
International
Network
Optimization Conference - INOC, Lisbon, Portugal, Vol. 3, pp. 710 - 717, March,
2005.
- Nogueira, A. N.; P. S. Ferreira; R. Valadas; A. Pacheco; “Multilayer Markov
modulated Poisson process for modeling self-similar traffic”, Proc International
Conf. on Telecommunications - ConTEL, Tomar, Portugal, Vol. 1, pp. 1 - 1, April,
2005.
- Pedro, J. M.; A.T. Teixeira; P. Monteiro; J. J. O. Pires; “On a Portuguese Backbone
Network of Reference”, Proc Symposium on Enabling Optical Networks - SEON,
Aveiro, Portugal, Vol. 1, pp. 80 - 84, June, 2005.
- Ferreira, J.; F. J. Velez; “Source Traffic Modelling for Enhanced UMTS Simulation”,
Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. 1, April, 2005.
- Valero, J.; R. R. P. Paulo; F. J. Velez; “Tele-Traffic Simulation for Mobile
Communication Systems Beyond 3G”, Proc Conf. da Engenharia - UBIEngenharias,
Covilhã, Portugal, Vol. 1, November, 2005.
- Paulo, R. R. P.; “Tele-Traffic Simulation for Mobile Communication Systems
Beyond 3G”, Proc Conf. da Engenharia - UBIEngenharias, Covilhã, Portugal, Vol. 1,
November, 2005.
- Paulo, R. R. P.; F. J. Velez; “Tráfego Multi-Serviço de Elevada Capacidade em
UMTS
Melhorado:
Um
Passo
Rumo
à
4G”,
Proc
Conf.
da
Engenharia
-
UBIEngenharias, Covilhã, Portugal, Vol. 1, November, 2005.
- Dias, C.; L. M. Correia; “Traffic Analysis at the Radio Interface in UMTS FDD”, Proc
Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol., April, 2005.
192
4.3.7
Other Achievements
4.3.7.1 Patents
- Hajduczenia, M.; H. J. A. Silva; P. Monteiro; “A method, communication system
and central communication unit for controlling accesses to a shared medium”,
05026647.7, December, 2005.
- Hajduczenia, M.; H. J. A. Silva; P. Monteiro; “A method, communication system,
central communication unit and a peripheral communication unit for controlling
accesses to a shared medium”, 05024740.2, November, 2005.
- Figueiredo, M. A. T.; “Invited Talks”, Recent advances in wavelet-based image
restoration”, 5th Conference on Telecommunications - ConfTele'2005, 18-11-2005.
- Queluz, M.P.; “Technical Audit”, Evaluator for Proposals to the Open Domain of
IST ´s Future and Emerging Technologies”, 15-11-2005.
- Pereira, F.; “PhD Thesis Jury”, Adaptation de contenu multimédia avec MPEG-21:
conversion de ressources et adaptation sémantique de scènes”, Eng. Mariam
Kimiaei Asadi, at École Nationale Supérieure des Télécommunications, Paris France, in June 2005, 05-11-2005.
-
Pereira,
F.;
“Invited
Talks”,
Bringing
emotions
to
adapted
multimedia
experiences”, Univ. Surrey, UK, 05-11-2005.
- Pereira, F.; “MSc Thesis Jury”, Codificação de vídeo para sistemas de comunicação
móveis”, Eng. Pedro Jorge de Oliveira Sá Vinhas, at Univ. of Aveiro, in March 2005,
05-11-2005.
- Pereira, F.; “Invited Talks”, Content adaptation: a metadata challenge”, Invited
talk as IEEE Distinguished Lecturer at IEEE Workshop on Multimedia Compression,
Bangalore – India, October 2005, 05-11-2005.
- Pereira, F.; “Invited Talks”, Content and context: two worlds to bridge”, Keynote
talk at Fourth International Workshop on Content-Based Multimedia Indexing
(CBMI’2005), Riga- Latvia, June 2005, 05-11-2005.
193
- Pereira, F.; “Invited Talks”, From coding to personalization using MPEG
standards”, Invited talk as IEEE Distinguished Lecturer at 12th IEEE Technical
Exchange Meeting (TEM), Dahran – Saudi Arabia, May 2005, 05-11-2005.
- Pereira, F.; “Tutorial”, MPEG visual representation standards”, Tutorial as IEEE
Distinguished Lecturer at IEEE Workshop on Multimedia Compression, Bangalore –
India, October 2005, 05-11-2005.
- Pereira, F.; “Invited Talks”, MPEG-21 standard: defining an open multimedia
framework”, Plenary talk at 47th International Symposium ELMAR-2005 focused on
Multimedia Systems and Applications, Zadar – Croatia, June 2005, 05-11-2005.
- Pereira, F.; “Invited Talks”, Multimedia representation technologies: from coding
to personalization”, Plenary talk at 5th Conference on Telecommunications, Tomar
– Portugal, April 2005, 05-11-2005.
- Pereira, F.; “Invited Talks”, Processing challenges in intelligent video adaptation”,
Plenary talk at Advanced Concepts for Intelligent Vision Systems (ACIVS’2005),
Antwerp – Belgium, September 2005, 05-11-2005.
- Pereira, F.; “Invited Talks”, Visual representation for advanced applications:
trends and challenges”, as IEEE Distinguished Lecturer, at Sharjah Univ. – United
Arab Emirates, in May 2005, 05-11-2005.
- Pereira, F.; “Guest Editor”, Analysis and Understanding for Video Adaptation”,
Special Issue of IEEE Transactions on Circuits and Systems for Video Technology,
01-10-2005.
- Pereira, F.; “Guest Editor”, European Projects on Visual Representation Systems
and Services”, Special Issue of Signal Processing: Image Communication, 01-102005.
- Figueiredo, M. A. T.; “Invited Talks”, Image segmentation under wavelet-based
(and other) priors”, ECE Department, University of Wisconsin, 28-08-2005.
- Pereira, F.; “Guest Editor”, Image and Video Processing Technologies”, Special
Issue of IEE Proceedings on Vision, Image and Signal Processing, 01-06-2005.
- Pereira, F.; “Guest Editor”, The MPEG-21 Standard”, Special Issue of IEEE
Transactions on Multimedia, 01-06-2005.
- Figueiredo, M. A. T.; “Invited Talks”, Image segmentation under wavelet-based
(and other) priors”, CSE Department, Michigan State University, 18-05-2005.
- Correia, P.L.; “MSc Thesis Jury”, Analysis of the influence of multiservice users’
mobility on UMTS performance”, 01-04-2005.
194
- Pereira, F.; “Member of Advisory Committee”, IEEE Distinguished Lecturer”, 1102-2005.
- Queluz, M.P.; “Technical Audit”, Reviewer of FP6 projects in Networked AudioVisual Systems and Home Platforms”, 02-02-2005.
- Fred, A. L. N.; “Invited Talks”, Combination of Clustering Ensembles using
Evidence Accumulation (EAC)”, Delft University of Technology, 17-01-2005.
195
4.3.8
Other Contributions
−
12th International Workshop on Systems, Signals and Image Processing
(IWSSIP’05), Technical Programme Committee, Fernando Pereira, 01-092005
−
13º Encontro Português de Computação Gráfica, Scientific Committee, Abel
João Gomes, 15-11-2005
−
19th International Telettrafic Congress (ITC 19), Technical Programme
Committee, José Brázio, 29-08-2005
−
1ª Conferência Nacional sobre Segurança Informática nas Organizações,
Technical Programme Committee, Susana Sargento, 11-11-2005
−
2nd Iberian Conference on Pattern Recognition and Image Analysis - IbPRIA
2005, Technical Programme Committee, Ana Fred, 07-06-2005
−
2nd Iberian Conference on Pattern Recognition and Image Analysis IbPRIA'2005, Technical Programme Committee, Mário Figueiredo, 06-062005
−
2nd International Conference on AND-business and Telecommunication
Networks, Technical Programme Committee, Sérgio Faria, 03-10-2005
−
2nd International Conference on AND-Business and Telecommunication
Networks, Scientific Committee, Pedro Amado Assunção, 03-10-2005
−
5th International Conference on Information, Communications & Signal
Processing
(ICICS’2005),
Technical
Programme
Committee,
Fernando
Pereira, 01-12-2005
−
5th International Workshop on Pattern Recognition in Information Systems PRIS 2005, Technical Programme Committee, Ana Fred, 24-05-2005
−
7th International Conference on Enterprise Information Systems - ICEIS
2005, Technical Programme Committee, Ana Fred, 24-05-2005
−
7th Symposium on Advanced Concepts for Intelligent Vision Systems
(ACIVS’2005), Technical Programme Committee, Fernando Pereira, 01-092005
196
−
CEE'05 - International Conference on Electrical Engineering, Scientific
Committee, Pedro Amado Assunção, 10-10-2005
−
Conferência Cientifica and Técnica, Scientific Committee, Rui L. Aguiar, 0101-2005
−
ConfTele05
-
Conference
on
Telecommunications
2005,
Technical
2005,
Technical
Programme Committee, Maria Paula Queluz, 08-04-2005
−
ConfTele05
-
Conference
on
Telecommunications
Programme Committee, Sérgio Faria, 06-04-2005
−
COST 279 Final Seminar, Conference Chairman, José Brázio, 27-06-2005
−
Eigth International Symposium on Signal Processing and its Applications
(ISSPA’2005), Technical Programme Committee, Fernando Pereira, 01-082005
−
Eurescom Summit 2005 - Ubiquitous Services and Applications, Technical
Programme Committee, Rui L. Aguiar, 01-04-2005
−
Fifth International Workshop on Energy Minimization Methods in Computer
Vision and Pattern Recognition - EMMCVPR'2005, Technical Programme
Committee, Mário Figueiredo, 09-11-2005
−
Global Business and Technology Association (GBATA 2005), Conference
Chairman, Sérgio Faria, 12-07-2005
−
IASTED International Conference on Internet and Multimedia Systems and
Applications (EuroIMSA 2005), Technical Programme Committee, Fernando
Pereira, 01-02-2005
−
ICETE
2005
-
International
Conference
on
AND-business
and
Telecommunication Networks, Technical Programme Committee, Rui L.
Aguiar, 01-10-2005
−
IEEE Conference on Computer Vision and Pattern Recognition - CVPR'2005,
Technical Programme Committee, Mário Figueiredo, 05-07-2005
−
IEEE International Conference on Acoustics, Speech and Signal Processing ICASSP'2005, Technical Programme Committee, Mário Figueiredo, 11-032005
−
IEEE International Conference on Acoustics, Speech, and Signal Processing ICASSP'2006, Technical Programme Committee, Mário Figueiredo, 15-052005
197
−
IEEE International Conference on Multimedia and Expo (ICME 05), Technical
Programme Committee, Maria Paula Queluz, 02-07-2005
−
IEEE International Conference on Multimedia and Expo (ICME’2005),
Organizing Committee, Fernando Pereira, 01-07-2005
−
International Conference on AND-Business and Telecommunication Networks
(ICETE´05), Technical Programme Committee, Maria Paula Queluz, 03-102005
−
International Conference on Image Analysis and Recognition - ICIAR 2005,
Technical Programme Chairman, Ana Fred, 28-09-2005
−
International Conference on Image Analysis and Recognition - ICIAR'2005,
−
International Conference on Image Analysis and Recognition (ICIAR’2005),
Technical Programme Committee, Fernando Pereira, 01-09-2005
−
International Conference on Image Processing - ICIP'2005, Technical
Programme Committee, Mário Figueiredo, 11-09-2005
−
International
Conference
on
Image
Processing
(ICIP’2005),
Technical
Programme Committee, Fernando Pereira, 05-09-2005
−
International
Conference
on
Multimedia
Services
Access
Networks
(MSAN’2005), Technical Programme Committee, Fernando Pereira, 01-062005
−
International Conference on Networking and Services, Technical Programme
Committee, Rui L. Aguiar, 01-09-2005
−
International
Conference
on
Visual
Information
Systems
(VIS’2005),
−
International Joint Conference on Neural Networks - IJCNN'2005, Technical
Programme Committee, Mário Figueiredo, 30-07-2005
−
International Network Optimisation Conference (INOC'2005), Scientific
Committee, Amaro Sousa, 20-03-2005
−
International Workshop on Content-Based Multimedia Indexing (CBMI’2005),
−
International Workshop on Very Low Bitrate Video Coding (VLVB’2005),
Technical Programme Chairman, Fernando Pereira, 15-09-2005
−
Interspeech 2005, Organizing Committee, Fernando Perdigão, 04-09-2005
−
IPC 2005, Technical Programme Committee, Ana Fred, 22-08-2005
198
−
Neural Information Processing Systems: Natural and Synthetic - NIPS'2005,
−
SINO'2005 1ª Conferência Nacional sobre Segurança Informática nas
Organizações, Organizing Committee, Rui Costa Cardoso, 07-11-2005
−
Organizações, Technical Programme Committee, Rui Costa Cardoso, 07-112005
−
Visual
Communications
and
Image
Processing
(VCIP’2005), Technical
Programme Chairman, Fernando Pereira, 15-07-2005
−
Workshop
da
Rede
Temática
de
Comunicações
Móveis,
Multimedia
Interactive
Organizing
Committee, Rui L. Aguiar, 18-02-2005
−
Workshop
on
Image
Analysis
for
Services
(WIAMIS’2005), Technical Programme Committee, Fernando Pereira, 01-042005
4.3.8.2 Editorial Committees
−
IEEE Transactions on Pattern Analysis and Machine Intelligence, IEEE, Mário
Figueiredo, Associate Editor, 01-09-2005 to
−
Segurança Informática nas Organizações, UBI Press, Rui Costa Cardoso,
Conference Proceedings, 07-11-2005 to 08-11-2005
−
Segurança
Informática
nas
Organizações,
UBI
Press,
Mário
Freire,
Conference Proceddings, 07-11-2005 to 08-11-2005
−
Signal Processing, EURASIP, Mário Figueiredo, Associate Editor, 01-09-2005
−
Signal Processing, Elsevier, Paulo Correia, Member of Editorial Board, 09-062005 to 31-12-2008
199
4.3.8.3 Refereeing
−
13º Encontro Português de Computação Gráfica, Abel João Gomes, 15-112005
−
13th European Signal Processing Conference - EUSIPCO 2005, Paulo Correia,
10-03-2005
−
Advances in Image and Video Segmentation - 2 book chapters, Paulo
Correia, 22-04-2005
−
APCC 2005 - 11th Asia-Pacific Conference on Communications, Perth,
Western Australia, Oct. 2005., Fernando J. Velez, 03-10-2005
−
Computer Methods and Programs in Biomedicine (Elsevier), Paulo Correia,
11-10-2005
−
Conferência sobre Redes de Comunicações 2004, Susana Sargento, 11-022005
−
ConfTele05 - Conference on Telecommunications 2005, João Ascenso, 1102-2005
−
ConfTele05 - Conference on Telecommunications 2005, Sérgio Faria, 06-042005
−
ConfTele05 - Conference on Telecommunications 2005, Susana Sargento,
21-01-2005
−
EEE Transaction on Image Processing, Sérgio Faria, 14-11-2005
−
Electronics Letters, Fernando Lopes, 17-10-2005
−
EUROCON 2005, António Alves Moreira, 24-11-2005
−
Euro-Par 2005, Paulo Correia, 11-03-2005
−
IEE Proceedings on Vision, Image & Signal Processing, João Ascenso, 11-022005
−
IEEE Communications Magazine 2005, Susana Sargento, 11-02-2005
−
IEEE Communications Magazine, Carlos Sá da Costa, 05-06-2005
−
IEEE GLOBECOM 2005, Susana Sargento, 11-02-2005
−
IEEE International Conference on Image Processing - ICIP 2005, Paulo
Correia, 13-02-2005
−
IEEE International Conference on Image Processing, Luís Ducla Soares, 1303-2005
200
−
IEEE Transactions on Circuits and Systems for Video Technology, Paulo
Nunes, 26-05-2005
−
IEEE Transactions on Circuits and Systems for Video Technology, Pedro
Amado Assunção, 31-12-2005
−
IEEE Transactions on Circuits and Systems, Sérgio Faria, 14-11-2005
−
IEEE Transactions on Education, Pedro Amado Assunção, 15-11-2005
−
IEEE Transactions on Education special issue on”Mobile Technology in
Education", Rafael Caldeirinha, 01-01-2005
−
IEEE Transactions on Image Processing, Paulo Correia, 15-04-2005
−
IEEE Transactions on Image Processing, Paulo Correia, 20-06-2005
−
IEEE Transactions on Image Processing, Pedro Amado Assunção, 31-122005
−
IEEE Transactions on Multimedia, Pedro Amado Assunção, 14-02-2005
−
IEEE Transactions on Multimedia, Paulo Correia, 18-10-2005
−
IEEE WCNC'2006 Wireless Communications and Networking Conference, Rui
Costa Cardoso, 30-10-2005
−
IEEE Wireless Communications and Networking Conference 2005, Susana
Sargento, 15-01-2005
−
IEEE/ACM Transactions on Networking, João Sobrinho, 10-06-2005
−
IEEE/ACM Transactions on Networking, João Sobrinho, 09-12-2005
−
Image Science Journal, Paulo Correia, 04-07-2005
−
Int. Symposium on Signal Processing and its Applications - ISSPA 2005,
Paulo Correia, 18-04-2005
−
International Workshop on Image Analysis for Multimedia Interactive
Services, Luís Ducla Soares, 17-01-2005
−
IST/FP6 Project - Expert reviewer, Pedro Amado Assunção, 28-11-2005
−
IST/FP6 Project - Expert reviewer, Pedro Amado Assunção, 15-09-2005
−
IST/FP6 Project - Expert Reviewer, Pedro Amado Assunção, 20-02-2005
−
RMCI'05 Symposium on Risk Management and Cyber-Informatics, Rui Costa
Cardoso, 03-05-2005
−
Signal Processing, Paulo Correia, 22-07-2005
−
Signal Processing, Paulo Correia, 20-12-2005
−
Organizações, Rui Costa Cardoso, 15-10-2005
201
−
WMSCI'2005 The 9th World Multi-Conference on Systemics, Cybernetics and
Informatics, Rui Costa Cardoso, 29-03-2005
202
ANNUAL REPORT 2005 – BASIC SCIENCES & ENABLING TECHNOLOGIES
4.4 Basic Sciences and Enabling Technologies
4.4.1
Coordinators
•
Pedro Girão
•
Luís Alcácer
4.4.2
Human Resources
4.4.2.1 Overview
Degree
Aveiro Coimbra Lisboa
Full Professor
1
2
2
Associate Professor
0
4
3
Assistant Professor
2
3
10
Post-Doc
0
0
2
0
1
2
Assistant Lecturer
0
4
0
PhD Student
4
4
10
MSc Student
2
6
12
Graduate
1
0
0
10
24
41
TOTAL
Table 30 – Overview of the human resources in the Basic Sciences ans Enabling Technologies
Area
203
Name
Degree
Position
Group
António Cruz Serra
Agregação
Full Professor
IM
Dinis Magalhães Santos
Agregação
Full Professor
ICS - Av
Eduardo de Sousa Saraiva
Agregação
Full Professor
PSys
Joaquim Júdice
Agregação
Full Professor
AMath
Luís Alcácer
Agregação
Full Professor
TM
Jorge Morgado
Agregação
Associate Professor
TM
Pedro Silva Girão
Agregação
Associate Professor
IM
António Cardoso
PhD
Associate Professor
PSys
José Carlos Teixeira
PhD
Associate Professor
AMath
Maria Celeste Gouveia
PhD
Associate Professor
AMath
Maria Madalena Martins
PhD
Associate Professor
AMath
Rui Teives Henriques
PhD
Associate Professor
TM
Adérito Neto Alcaso
PhD
Assistant Professor
PSys
André Mendes
PhD
Assistant Professor
PSys
António Victor Anunciada
PhD
Assistant Professor
PE
Beatriz Borges
PhD
Assistant Professor
PE
Fernando Tim Tim Janeiro
PhD
Assistant Professor
IM
Francisco Alegria
PhD
Assistant Professor
IM
Helena Ramos
PhD
Assistant Professor
IM
Jorge M. Correia Guilherme
PhD
Assistant Professor
ICS - Lx
José Cura
PhD
Assistant Professor
ICS - Av
Manuel Fonseca da Silva
PhD
Assistant Professor
IM
204
Name
Degree
Position
Group
Nuno Horta
PhD
Assistant Professor
ICS - Lx
Pedro Ramos
PhD
Assistant Professor
IM
Raúl Martins
PhD
Assistant Professor
IM
Rui L. Aguiar
PhD
Assistant Professor
NMMC- Av
Sérgio Cruz
PhD
Assistant Professor
PSys
José Dias Pereira
PhD
IM
Luís Merca Fernandes
PhD
AMath
Manuel Matos
PhD
TM
Ana Charas
PhD
Post. Doc.
TM
Octavian Postolache
PhD
Post. Doc.
IM
Table 31 – Permanent Collaborators working in the Basic Sciences and Enabling Technologies
Area
Name
Degree
Position
Group
Ana Carla Vicente Vieira
MSc
Assistant Lecturer
PSys
Luís M. Oliveira
MSc
Assistant Lecturer
PSys
Marina Perdigão
MSc
Assistant Lecturer
PSys
Natália Gameiro
MSc
Assistant Lecturer
PSys
Paulo Santos
MSc
Assistant Lecturer
IM
Acácio Manuel Amaral
MSc
PhD Student
PSys
Domingos da Silva Barbosa
MSc
PhD Student
ICS - Av
Luis Nero Alves
MSc
PhD Student
ICS - Av
Ricardo Queirós
MSc
PhD Student
IM
205
Name
Degree
Position
Group
MSc
PhD Student
IM
Hugo Marques
Licenciatura
PhD Student
PE
João Manuel Patrício
Licenciatura
PhD Student
AMath
M´hamed Drif
Licenciatura
PhD Student
PSys
Manuel Fernando Barros
Licenciatura
PhD Student
ICS - Lx
Mónica Figueiredo
Licenciatura
PhD Student
ICS - Av
Nuno Gonçalo Bandeira Brás
Licenciatura
PhD Student
IM
Paulo Jorge Maia dos Santos
Licenciatura
PhD Student
IM
Raúl Domingos Monteiro
Licenciatura
PhD Student
PE
Stanimir Valtchev
Licenciatura
PhD Student
PE
Teresa G. Ferreira Gaspar
Licenciatura
PhD Student
AMath
Victor Costa
Licenciatura
PhD Student
PE
Américo C. Mendes
Licenciatura
MSc Student
ICS - Av
Carlos Ferreira
Licenciatura
MSc Student
PE
Carlos Manuel Duarte
Licenciatura
MSc Student
PSys
David Simões
Licenciatura
MSc Student
ICS - Lx
Eliseu Alberto Lobato Macedo
Licenciatura
MSc Student
ICS - Av
Francisco Nunes
Licenciatura
MSc Student
PE
Gonçalo Neves
Licenciatura
MSc Student
ICS - Lx
Hugo Ribeiro
Licenciatura
MSc Student
PE
João Costa
Licenciatura
MSc Student
PE
João Lima
Licenciatura
MSc Student
ICS - Lx
João Redol
Licenciatura
MSc Student
ICS - Lx
José Luís Silva
Licenciatura
MSc Student
PSys
Vitor Viegas
206
Name
Degree
Position
Group
Luís Carlos Maria
Licenciatura
MSc Student
PSys
Manuel Ferreira
Licenciatura
MSc Student
PE
Manuel Pires Abraços
Licenciatura
MSc Student
PE
Nuno Calado Lourenço
Licenciatura
MSc Student
ICS - Lx
Nuno M. Lucas Vieira Lopes
Licenciatura
MSc Student
PSys
Rui Vaz Luis
Licenciatura
MSc Student
ICS - Lx
Sérgio Lopes dos Santos
Licenciatura
MSc Student
PSys
Ticiana Viseu
Licenciatura
MSc Student
PSys
José Miguel Bergano
Licenciatura
Graduate
ICS - Av
Table 32 – Non-permanent Collaborators working in the Basic Sciences and Enabling
Technologies Area
207
4.4.3
The multidisciplinary area falling under the general heading of Basic Sciences and
Enabling Technologies comprises five main lines of research:
- Technology and Materials
- Integrated Circuits and Systems
- Instrumentation and Measurement
- Power Electronics
- Applied Mathematics
4.4.3.1 Technology and Materials
The scientific activities in technology and materials dealt mainly with organic
electronics. This is a multidisciplinary area of science and technology related to a
class of organic materials, both single molecules and polymers, which are emerging
as the basis for a new technological paradigm, which aims at ultralow-cost,
lightweight and flexible electronic devices for displays, circuits and systems that can
be printed on anything and placed anywhere.
Three main topics were addressed, in 2005:
i) Organic materials for light emitting diodes (LEDs), thin film transistors (TFTs),
plastic integrated circuits and photovoltaic cells.
ii) Fabrication of fully patterned all plastic integrated circuits
iii) Fundamental studies of molecule based conductors.
Within the first topic, three new electroluminescent photopatternable polyfluorenes,
which emit in the blue, green and orange, were developed and characterized. Light
Emitting Diodes, (LEDs) were fabricated with such polymers. TEM (Transmission
Electron Miscroscope) grids were used as masks to demonstrate the principle of
photopatterning, and nanopatterning has been done in collaboration with the
University Colledge London. Electroluminescent polymers mixed with an europium
salt (which emits in the red) were also studied, in order to evaluate the importance
of energy transfer processes and charge retention in working LEDs. In addition, the
preparation of organic polymers for the fabrication of photovoltaic cells based on
organic materials was started.
208
In relation with the second topic, a demonstration project, in collaboration with the
IC Design AUtomation Group, was started, aiming at the fabrication of fully
patterned all plastic integrated circuits. The design and analysis of new organic
circuits is being supported by the development of accurate SPICE models for the
implemented organic TFTs and by using a SPICE-like simulator to estimate their
performance.
In
particular,
the
fabrication
conditions
of
cross-linked
polyvinylphenol (PVP) dielectric materials was optimized for use in pentacene thin
film transitors, which are now being used in the fabrication of pentacene inverters.
In which concerns the third topic, progress was made in the study of molecular
conductors exhibiting an insulating Charge Density Wave (CDW) ground state under
ambient pressure and Earth magnetic field. The study of these conductors under
high magnetic fields and/or moderate pressures (up to 12 kbar) proceeded through
international collaborations with the National High Magnetic Field Laboratory of
Talahassee, Florida and with Hokkaido University, Japan. The synthesis and
characterization of organometallic complexes suitable as building blocks for new
series of molecular conductors was continued in close collaboration with ITN
(Instituto Tecnológico Nuclear, Portugal).
In addition to the above topics, advanced electrochemical methods such as square
wave anodic stripping voltammetry (SWASV) were applied to the determination of
heavy metals in soils and in vegetable bioindicator species for on-line operation and
monitorization.
4.4.3.2 Integrated Circuits and Systems
There were two distinct lines of work in this sub-area:
i) Design Automation
ii) Electronic Systems Design
Within the sub-area of Design Automation the two following topics have been
addressed:
•
development of design automation tools for “System-on-Chip” applications
•
development
of
E-Design/E-Learning
environments
to
support
collaborative design activities
The research activities on the design automation domain included: (1) circuit and
system optimization techniques, particularly, the use of modified genetic algorithms
209
applied to a broad range of circuits and systems; (2) automatic circuit and systems
topology search based on evolutionary computation methodologies; (3) symbolic
analysis and synthesis for analog and mixed signal systems.
The development of E-Design/E-Learning environments to support collaborative
design activities include the research on areas such as web/data mining techniques,
as well as partnerships with distance learning research teams.
The activity being pursued in the field of Electronic Systems has been focused on
the development of low-noise electronics for the detection of polarized emission
from our galaxy. In fact, in the line of the long tradition of interaction between the
fields of Physics and Astronomy, a new line of work in radioastronomy, which
formally began within the Integrated Circuits and Systems Group at Aveiro, has
started in the beginning of 2005. This work is, by and large, supported by the GEM
(Galactic Emission Mapping) project (see above). This initiative, although still based
on a small number of collaborators (2 Ph. D.'s, one Ph. D. student and a grantee,
along with a few consultants) promises to grow quite fast and involve other groups
at IT-Aveiro and elsewhere. A similar effort is being carried out in other parts of the
world, and among its partners is the Lawrence Berkeley National Laboratory.
4.4.3.3 Instrumentation and Measurement
The Instrumentation and Measurement Group developed in 2005 work that can be
further subdivided in the following topics:
•
Analogue-to-digital conversion;
•
Measurement of electrical quantities;
•
Sensors and transducers;
•
Signal acquisition and automated and telemetric measuring systems;
•
Signal processing applied to sensors and instrumentation.
Analogue-to-digital conversion involved not only the characterization and test of
Analogue-to-Digital Converters (ADCs) and of data acquisition systems but also the
implementation of systems using frequency-to-code converters.
ADCs were studied to estimate the uncertainty of gain and offset errors when using
the Histogram Method. This method was also examined from the point of view of
210
overdrive used in testing. The uncertainty of ADC random noise estimates obtained
using
the
methods
described
in
the
IEEE
1057-2000
standard
was
also
investigated.
In collaboration with the Physics Department of Faculdade de Ciências e
Tecnologia/ Universidade de Coimbra data acquisition modules used in particle
detectors were tested.
The work on the new quasi static method for ADC testing based on the use of small
triangular waves was concluded. The method was included in new 2005 IEC
standard 62008 and will be included in the revision of IEEE 1057 standard.
In what the measurement of electrical quantities is concerned, it should be
emphasized the measurement of impedance, admittance and transfer functions of
100 kVA and 630 kVA power distribution transformers in collaboration with EDP,
through LABELEC – Estudos Desenvolvimento e Actividades Laboratoriais, S.A.
R&D in sensors and transducers was mainly conducted in the context of
environmental and biomedical applications, two domains the Instrumentation and
Measurement Group gives higher priority. Thus, new sensing structures, namely for
conductivity measurement to be used for in-situ estuarine water quality monitoring,
were designed and implemented and the static and dynamic characterization of
sensors and measurement systems (polography, heavy metals detectors, turbidity,
pH and conductivity sensors) was performed.
Ultrasound
sensing
was
investigated for
non-destructive
testing
of
human
prosthesis. This type of sensors was also tested not only under a collaboration
program with the Mechanical Engineering Department of Instituto Superior Técnico
but also in the context of a PhD. thesis on the use of ultrasonic sensors for ranging
and image applications. This last work produced a new method for ultrasonic
ranging already reported to the scientific community.
All Instrumentation and Measurement Group members have experience and
competence on signal acquisition and automated and telemetric measuring
systems. The Group is a partner of National Instruments and the expertise of its
members has been used either within the context of R&D projects or within
211
collaborations with external entities. Examples of the first are the implementation
of:
• signal acquisition systems, namely using NI cRIO technology, for environmental
monitoring applications,
• PDA based instrumentation for medical applications,
• a 1451 standard general purpose multi-sensor data acquisition module with
broadcasting capabilities Smart Transducer Interface Model (STIM) based on a
Field Programmable Logic Array (FPGA),
• remote transmission solutions based on 802.11 protocol and GPRS technologies
for WQMN (Water Quality Monitoring Networks),
• systems based on Foundation Fieldbus and HART instrumentation.
In 2005, the following services to external entities were rendered:
• optimization of data acquisition systems used in ocean bottom seismometers, in
collaboration with Centro Tecnológico de Vilanova i la Geltru of Universidade
Politécnica da Catalunha, Barcelona, Spain;
• automation of a 2MeV linear particle accelerator for Instituto Tecnológico e
Nuclear (ITN);
• design and specification of an VLF system for time dissemination in Portugal for
Instituto Português da Qualidade;
• design, specification and test of an integrated remotely accessible system to
monitor and control the radiofrequency spectrum in Azores for Autoridade
Nacional de Comunicações (ANACOM);
Signal processing is constantly present in modern instrumentation and measuring
systems. As in the past, techniques such as neural networks, self-organizing maps,
fuzzy logic, wavelets, genetic algorithms and data fusion have been used to digitally
process sensors’ output data for accuracy improvement, data representation
classification
and
forecasting
purposes.
Particular
mention
is
due
to
the
improvement of a new multi harmonic sine fitting algorithm used for impedance
measurement and power quality analysis.
Finally, it is worth mentioning that in 2005 the Instrumentation and Measurement
Group started the final stage of an FCT funded re-equipment project and the
installation of a laboratory of its own.
212
4.4.3.4 Power Electronics
The activities in this area included:
- High Frequency Converters, soft and hard switching topologies and control techniques.
- Power Quality and Active Power Filters
- Power Electronics for vehicular applications, focused on energy storage
HIGH FREQUENCY CONVERTERS
Study, development, theoretical analysis and simulation of zero voltage switching
DC-DC converters. Simulation of alternative energy storage topologies. Study of
alternative converter topologies. Additional studies on applications on those
topology developments, namely application in switching audio amplifiers and power
active filters.
Concluded the study of the half-bridge topology, hard switched, for power audio
applications. MSc Thesis concluded: Switch mode audio amplifier at 433 kHz with a
resonant ripple filter at the output. Author: Carlos Ferreira (in cooperation with IT
Coimbra)
Development, Design and Construction of a 50W switched audio power amplifier
with one cycle control.
Development of a new pulse width modulator, named One Cycle Charge Control.
Theoretical analysis of controllability, design principles and experimental results
with a simple buck converter already accomplished. The main achievement of this
PWM circuit is the increase of
the converter frequency response, that is
independent of the frequency poles of the output filter (small signal analysis). The
new concept permits important achievements in the design of audio amplifiers,
multi-phase DC-DC converters and high power, low noise, supply of nuclear fusion
magnets. Patent application prepared.
Research, development and practical implementation of new circuits for high
performance DC-DC power conversion in CMOS technology based in soft switching
converters.
Development, complete design and full integration in CMOS technology of a boost
converter for powering LCD displays for portable equipment.
Contactless energy transmission: theoretical analysis, simulation and design
optimisation of Resonant Converters working as interfaces for inductive coupling in
order to be used as a contact-less power interface. The main objective of this work
213
is to show the performance of the power stages when operating with a non-ideal
transformer, identifying the most important changes in converter characteristics
due to the nonidealities. Construction of a modular resonant converter for testing
different converter topologies. PhD thesis concluded. Author: Stanimir Stoyanov
Valtchev
POWER QUALITY AND ACTIVE POWER FILTERS
A new topology of active power filters obtained. The topology is based on the
association of a passive LC parallel passive filter, tuned to the mains frequency, and
a full-bridge current controlled, power converter. The main achievement is the
reduction of the nominal power at the converter (less than 20% of the system
output power).
Studies on the RF noise emitted by power converters connected to mains supply
are concluded and the study of soft switching techniques to high power converters
connected to mains supply is still active (PhD Thesis, Raul Monteiro).
The characterization and modelling of typical voltage harmonic distortion in the
networks of urban residential areas is completed (MSc Thesis, Rui Alcobia)
Study of the typical behaviour of SMPS under power quality disturbances
conditions, concluded. The study includes an extensive analysis of power supply
topologies, including parasitic parameters, and the measurement of parameters in
several commercial equipments. Obtained a frame of parameters ( voltages, time
derivatives, high frequency disturbances, fast transients) related with SMPS
operation and reliability. (MSc thesis, Hugo Ribeiro). The results obtained are being
used to develop a proposal of a new power quality standard related with electronic
equipment requirements, following the quality principles of EN 29000 general
purpose quality standards for services. (MSc thesis, Manuel Abraços)
Performance evaluation of large generator sets supplying high power 3-phase
rectifiers, usual in large telecom plants with high power rectifiers or UPSs. Design
rules for passive filters. Experimental results in a 300KVA radar station (Lisbon
Airport). MSc thesis concluded (Manuel Ferreira).
ENERGY STORAGE
Optimization of the charge process in ultracapacitors. Development of a new active
equalizing circuit, that interacts with the power converter charging the capacitor.
214
Obtained a new low cost equalizing topology, optically coupled to the power
converter control. The circuit maximizes the overall stored energy and reduces
charging times. Patent application prepared.
4.4.3.5 Applied Mathematics
The activities in applied mathematics were focused in three main lines of research:
i) Optimization
ii) Numerical Linear Algebra
iii) Partial Differential Equations
Apart from some more theoretical oriented studies, research has mainly been
focused in the design, convergence analysis, implementation and testing of
algorithms for the solution of many important problems related to the above lines
of research. The most relevant topics addressed are presented below:
1. Numerical Linear Algebra: Preconditioning and convergence of iterative methods
for the solution of linear systems of equations.
2. Complementarity Problems: design, implementation, convergence analyses and
testing of interior-point algorithms, active-set methods, sequential quadratic
algorithms and enumerative methods.
3. Global Optimization: complementarity algorithms, positive semi-definite and
reformulation-linearization techniques for bilevel programming, quadratic and
bilinear
programming
and
mathematical
programs
with
complementarity
constraints.
4. Discrete Optimization: global optimization algorithms for linear, nonlinear and
complementarity problems with integer variables.
5. Solution
of
Structured
Optimization
Models,
namely
network
models,
eigencomplementarity problems and other engineering models.
6. Solution of Partial Differential Equations associated with contact problems and
other variational models in engineering.
7. Design and solution of models of filtering and other areas in telecommunications.
215
4.4.4
Running Projects
4.4.4.1 Overview
Funding Agency
Number
DSIC
1
EU/TEMPUS
1
FCT/PNAT
1
FCT/POCI
4
FCT/POCTI
5
FCT/POSC
3
FCT/POSI
1
ICP/ANACOM
1
Infineon Technologies
1
Internal
3
IPQ
1
IT/LA
5
TOTAL
27
Table 33 – Number of active projects running in the Basic Sciences and Enabling
Technologies Area
216
4.4.4.2 Activity in projects
Acron / Ref
ORAL / POCI/MAT/56727/2004
Title
Alocação Óptima de Recursos
Descript.
This project intends to optimize several video encoding parameters.
Although we focus on ITU-T H.264/MPEG-4 AVC standard as a
reference to formulate the problems, all the optimization solutions
to be investigated have a more general application. As it is well
known, a standard like H.264 is a compilation of the most
sophisticated algorithms. Despite each of them by itself is qualified
as of a high performance, their combination may result in a poor
system. For instance, a standard could provide either less or better
performance in some circumstances like constant/variable bit rate
(BR),
low/high
BR,
low/high
resolution,
low/high
scalability,
good/bad channel, low/high delay, etc. Therefore, parameter tuning
is of crucial importance to adapt the standard to any of those
conditions. Moreover, in general, when a new standard is issued, it
provides a worse performance than any previous one since it lacks
optimization. This is the case of H.264, a recent ITU/MPEG standard
with some profiles still to be approved. As the history showed, we
then expect, in the ORAL framework, to contribute to improve
H.264 performance significantly. The main motivation to embrace
this proposed research is to join, in a fruitful manner, scientists
from mathematics and communications to solve multidimensional
telecom problems. The optimization problems to be processed are
large-scale and involve constraints. Furthermore, interpolation,
stability, existence, achievability and convergence rate are critical
mathematical concepts that are fundamental in this research. Let
Xijk be a random process defining an original sample (image pixel)
at spatio-temporal position i,j,k of video sequence length T and
image resolution NxM. We intend to propose new mathematical
217
methods for those specific problems in order to achieve optimal and
sub-optimal solutions with as low computational complexity as
possible. These new methodologies are to be compared with other
solution methods that have been published in the literature.
Acron / Ref
Title
DICSAP/WCA / IT/LA/298/2005
Design,
Implementation
and
Characterization
of
Stand-Alone
Prototypes for Water Conductivity Assessment
Descript.
The target of the present project is to develop, implement and
characterize two stand-alone prototypes for conductivity monitoring
of water mainly in estuary rivers. As multipoint network is of
paramount importance in water quality assessment and the sensor
plays a very important role in the measurement system, the goal of
this work is focused in low-cost effective solutions instead of
commercially available conductivity sensors. One of the prototypes
is based on a four-electrode conductivity sensor and the other on
an inductive conductivity sensor.
Acron / Ref
HORA
Title
Disseminação horária
Descript.
Disseminação horária em VLF em Portugal continental and ilhas
Acron / Ref
Title
Fault Diagnosis / POSI/EEI/14151/2001
DSP-Based Winding Fault Diagnosis in Operating Three-Phase Power
Transformers
Descript.
The major aim of the project basically comprises the development of
218
a prototype, able to provide a complete and reliable diagnosis of the
operating condition of three-phase power transformers, particularly
regarding the occurrence of winding faults.
Acron / Ref
Conjugated polymers and copolymers /
POCI/QUI/58291/2004
Title
End-capped
conjugated
polymers
and
copolymers
for
device
applications
Descript.
The objectives are to synthesise and fully characterise in terms of
photophysical properties and chemical stability a series of
polyfluorenes, poly(p-phenylene vinylenes) and related copolymers
with hole trapping or blocking, electron trapping and luminescent
end-groups for potential applications in LEDs. The best candidates will
be used for device fabrication and the current-voltage and luminancevoltage characteristics studied.
Acron / Ref
Title
PLEDs / POCTI/CTM/40063/2001
Energy transfer from electroluminescent polymers to
phosphorescent dopants
Descript.
1. Obtaining saturated green and red emission from light-emitting
devices (LEDs) prepared from electroluminescent polymers doped
with phosphorescent lanthanide complexes, and harvesting of the
energy of the triplet excitations generated by charge injection. 2.
Evaluate the feasibility of an ideal spin-polarised charge injection
device, allowing for the selective generation of only singlets or
triplets, via the use of the spintronics concept.
219
Acron / Ref
EUPAS
Title
EUropean Project for ADC-based devices Standardization
Descript.
European Network including 10 Universities and Research centres
and 5 Industrial partners. Description: The aim of this project is to
contribute to the improvement of the European rules concerning the
test methods for analog-to-digital converters and sample-and-hold
circuits, with emphasis on their dynamic behavior. During 2003,
new test methods to circumvent the limits of the measurement
instrumentation, to measure particular parameters required for
specific applications and to diagnose problems in new converter
designs will be investigated and proposed.
Acron / Ref
Title
EVOLUTION / POSC/EEA/60225/2004
Exploring Evolutionary Computation to Enhance Analog IC Design
Automation Methodologies
Descript.
The main objective of EVOLUTION project proposal consists of
applying evolutionary computation techniques to achieve the
optimal analog circuit and system design solution. In order to fulfill
the main objective two other goals should be accomplished, first,
the evolutionary computation features should be used to develop an
autonomous mechanism capable of conducting the search for the
optimal solution, second, new modeling techniques should be
investigated to generate adaptive circuit and system models to both
reduce the cost function evaluation and, also, to allow different
levels
of
accuracy,
during
the
optimization
process.
The
achievement of these goals should allow an enhancement on the
design cycle automation. The resulting design automation system
and the expected improvement in design productivity will be
demonstrated for both circuit and system designs.
220
Acron / Ref
Title
Powerquality / POSC/EEA-ESE/57708/2004
Fast and accurate power quality measurements using analog to
digital converters and digital signal processing techniques
Descript.
The objective of this project is: (i) to study and develop new digital
signal processing algorithms for power quality analyzers; (ii) to
develop the interface to the ADCs with signal conditioning electronic
circuitry. All system components will be metrologically characterized
with special emphasis on the ADCs. Development and testing of the
algorithms will be implemented on PCs. Afterward a analysis will be
performed as to their adaptability to fit the limitations of a DSP
based portable instrument.
Acron / Ref
PLASTIC / IT/LA/297/2005
Title
Fully Patterned all Plastic Integrated Circuits
Descript.
Demonstration of the possibility of fully pattern all components of
all polymeric integrated circuits, namely source, drain and gate
contacts, dielectric and polymer channel of individual transistors. At
the end of the project a fully patterned inverter, on a flexible
substrate, will be delivered as a demonstrator.
Acron / Ref
GEM / POCI/CTE-AST/57209/2004
Title
Galactic Emission Mapping
Descript.
Mapping and characterization of galactic emission in the range 510GHz
221
Acron / Ref
AQA / POCTI/ PNAT / EEI / 15052 / 1999
Title
Global Monitoring Based on Smart Sensors for Environment Quality
Descript.
The main objective and original contribution of this project is the
study,
design
and
implementation
of
intelligent
automated
measurement systems for the continuous monitoring of parameters
considered important for the environment quality. These systems
include smart cells (i.and. smart sensors or smart actuators) for
some physical quantities with digital processing structures with
prediction capabilities. As new intelligent techniques that will be
developed within the project it should be underlined: ·The sensor
fusion and integration that combine the information in a way that
removes inconsistencies and presents clearly the best interpretation
of readings input from many individual sources. ·Neural and neurofuzzy information processing that includes linearisation, prediction
and the correction of sensor characteristics. Another direction of
work will be the establishment of a client-server architecture linked
through a computer network for distributed measurement systems.
The client performs the continuous monitoring of the electrical
signals related to the quantities to be measured and their
transmission to the server database. For the water quantities the
transmission
is
via
the
Global
Standard
for
Mobile
telecommunication (GSM) and a Global Position Sensor (GPS) is
used for sensors position detection.
Acron / Ref
Hi-Fixx2
Title
Hi-Fixx2
Descript.
To support testing of high speed memories
222
Acron / Ref
IMPCLOCK / POCTI/ESE/48329/2002
Title
Implementation of feedback-based clock distribution systems
Descript.
In this context, the project has two principal objectives: i) to
analyze
feedback-based
CD
mechanisms
for
CMOS
systems,
developing formal models for these techniques. These models
should provide indication on performance bounds of given clock
distribution architectures, given technology characteristics, clock
network elements, and global circuit characteristics. ii) to develop
new clock network devices (e.g. DLLs, repeaters), based on
concepts of high speed distributed filtering and amplifications. This
will achieved by expanding concepts already developed by this
team both in this and in other fields of application. After successful
conclusion the project should have demonstrated (inside the
existing development constraints, i.e., non-commercial circuits) the
validity and limitations of the clock distribution models, specially
associated with the novel devices developed in the project. For that,
the project will develop a clock distribution system with novel
systems for discrete-time control of clock phase and novel clock
repeater strategies. The experimental circuits developed will be
implemented through the Europractice program.
Acron / Ref
Title
NORIT / CTM2005-02034/MAR
Incidence of Norway lobster emergence activity rythms on its
populations assessment
Descript.
The final objectiveof this project is to measure, and to quantify, the
emergence rhythms of the Norway lobster (Nephrops norvegicus L.)
for the different parts of its population, in response to different
environemental variables, and thus obtaining a database for a more
precise evaluation of this resource.
223
Acron / Ref
Title
ADCPN / IT/LA/295/2005
Influence
of
Phase
Noise
and
Jitter
in
the
testing
of
telecommunication ADCs
Descript.
Today’s telecommunications are essentially digital because of its
advantages in term of speed, versatility and robustness. To
implement a digital communication channel is fundamental the use
of analog to digital and digital to analog converters. The main goal
is to have higher bandwidths necessary, for instance, to have faster
computer networks or new services in mobile phones, like video or
broadband internet. To achieve this, analog to digital converters
(ADCs) are constantly being improved and their capacity pushed to
the limit. One factor that affects ADC performance is the presence
of phase noise in the analog signals being converted, due, for
instance, to the use of higher frequency local oscillators, and the
presence of jitter in the sampling of the analog signal required to
convert it to digital. Both of theses phenomena, which generally can
be studied together, affect the behavior of the ADC. In this project
we propose to study the influence of phase noise and jitter in the
results of ADC testing. It’s influence on those results depends on
the test method chosen. Two of the methods we propose to study
are the Histogram Method and the DFT Method. The first one is
used to determine the ADC transfer function, integral non linearity
(INL), differential nonlinearity (DNL), gain error and offset error.
The second one, the DFT Method, is used to determine ADC signal
to noise and distortion ratio (SINAD), total harmonic distortion
(THD), noise and effective number of bits (ENOB).
224
Acron / Ref
Title
TIM / POSC/EEA-ESE/60397/2004
Magnetic
Induction
instrumentation
and
Tomography
measuring
-
Development
methods
of
for
the
biomedical
applications.
Descript.
The aim of the project is to assess the use of Magnetic Induction
Tomography (MIT) as a means to measure relevant biomedical
information, and specifically to evaluate its applicability in the
measurement of impedance plethysmography (change of tissue
volumes
in
the
body),
cardiac
activity
through
impedance
cardiology (ICG) and spatial localization of malignant tumors. To
this end our intent is to develop new approaches to the solution of
the direct and inverse problems, design a multifrequency and
multisensor MIT device, evaluate the optimal excitation pattern,
develop new image reconstruction algorithms, evaluate the safety
operation constraints regarding the use of a MIT device on living
tissue and experimentally assess the viability of the MIT technology
for impedance plethysmography, ICG and tumor location.
Acron / Ref
OFETs / POCTI/CTM/41117/2001
Title
Materials For Organic Electronics
Descript.
This project foccus on the investigation of promising organic
materials,
in
particular,
perylene,
its
derivatives,
and
phthalocyanines, using both high purity single crystals and high
quality thin films, in field effect transistor structures.
225
Acron / Ref
Title
NECTDiMe / POCTI/ESE/46995/2002
New error correction techniques for digital measurement
instruments
Descript.
Nowadays nearly all measurements of every quantity are carried out
through digital measuring systems. These are usually composed by
one or more sensors, signal conditioning circuits, analog to digital
converters (ADCs) and computers or microprocessors, where digital
signal processing is performed to extract the relevant information
from the ADC output codes. The accuracy of these measurement
instruments is strongly dependent on the quality of calibration
techniques and signal processing algorithms. When the systematic
errors are time invariant, they can be characterized during a
calibration
process
and
mathematically
removed
during
the
measurement procedure. One of the key components in modern
measuring
systems
is
the
Analog-to-Digital
Converter.
Their
performance has a determinant impact on the performance of digital
instruments, and on the quality of the measurement systems.
Traditionally, digital instruments are designed by considering ADCs
as ideal components affected only by sampling and quantization
errors. Unfortunately, actual errors in ADCs transfer function,
strongly affect the overall accuracy and bandwidth of the systems
where
they
are
included.
To
implement
powerful
calibration
techniques the behavior of ADCs has to be well described. Dynamic
characterization of ADCs is usually performed by the code density
histogram, DFT or sine-fitting tests, in which the participants in this
project have ample knowledge and internationally published work.
In this project, we propose to apply our experience on ADC testing
and use signal processing techniques to built high accuracy digital
measurement systems. We will demonstrate these techniques by
implementing
an
impedance
meter
and
by
performing
error
correction in the results of an electrocardiograph. Simultaneously
high frequency ADC testing techniques will be improved. The
226
impedance measurement system will be based on the use of ADCs
included in general-purpose digitizers and sine-fitting techniques.
The system will perform from DC to tens of MHz. Calibration
techniques will remove the influence of systematic errors. They will
be based on a complete characterization of the digitizing channels
and implementation of the corresponding error correction. The
unavoidable influence of noise in any experimental setup will be
reduced by the use of sine-fitting techniques. This will allow the
construction of high accuracy, but not expensive instruments.
Preliminary results already obtained by using a medium cost 12 bit
PC data acquisition boards show that the technique is very powerful
and can lead to measurement accuracy comparable with that
obtained by sophisticated very high cost dedicated impedance
measurement equipment. The first results for impedances with
magnitudes and phases near 300ohm and 45º shown standard
deviations close to 0.01ohm and 0.01º. Similar techniques will be
used to remove the power-line interference in electrocardiogram
results. Sine-fitting or frequency domain techniques (IpDFT) will be
used.
Acron / Ref
OCAP / POCTI/ESE/41554/2001
Title
Optimization of Circuit topologies for Active Power filters
Descript.
Active Power Filters is an important research domain of power
electronics, related with power quality. The main drawbacks of
power filters are: - high acquisition cost for the user, with moderate
benefits to the user plant; the main benefits come to the mains
network
and
power
distribution
company
-
electromagnetic
compatibility problems, namely those related with radio frequency
conducted noise The project objective is the reduction of the
systems cost and the increase of valuable functions to the user
plant, namely including in the power filter some of the functions
227
usually associated to the power conditioners. The use of soft
switching power converters associated with adequate modulation
techniques would reduce de EMC problems.
Acron / Ref
Title
Conducting polymers / POCI/CTM/58767/2004
Photovoltaic cells based on conducting polymers and anthocyanins
The main goal of this project is the development of active layers
made of conjugated polymers and anthocyanin dyes for the
fabrication of efficient photovoltaic cells. In order to achieve this
main goal, the partial objectives to be attain are: i) selection of
electron
donor
(conjugated
polymer)
–
electron
acceptor
(anthocyanin) pairs showing efficient charge transfer in the excited
state. ii) optimisation of the conjugated polymers-anthocyanin
Descript.
composites in terms of composition and film morphology with a view
to maximise the photoinduced charge transfer, iii) fabrication of
photovoltaic cells based on such composites, with an assessment of
the charge transport efficiency; iv) synthesis of double cables made
of conjugated polymers main chain with anthocyanin side groups
and comparison of their photophysics with that of the corresponding
composites; v) fabrication of photovoltaic cells based on such double
cable systems; vi) Assessment of the relative performance of PVs
based on the two approaches: composites vs doubel cable.
Acron / Ref
PQ
Title
Power Quality
Descript.
To develop power quality standards, and monitoring devices, related
with the PQ parameters relevant for the reliability of electronic and
telecommunications equipments. Analysis of the behaviour of switch
mode power supplies and battery chargers to power quality
228
disturbances. Models to predict THD in mains networks in urban
areas.
Acron / Ref
Title
PQM/ADC/DSP / IT/LA/318/2005
Power quality measurements using analog to digital converters and
digital signal processing techniques
Descript.
The objective of this project is to study, develop and implement
new digital signal processing techniques to be used in power quality
measurement instruments based on analog to digital converters
and digital signal processors. Digital signal processing algorithms
are fundamental as they can produce very accurate results and are
a flexible component of instruments which can be upgraded and
improved without the need for expensive and time consuming
hardware re-designing. There is no single algorithm that can detect
the variety of power quality anomalies. Instead, a set of algorithms
is need, where each one is responsible for detection of a set of
disturbances.
Acron / Ref
QM
Title
Quality of Measurement
Descript.
Updating university curricula and establishment of post-graduate
study in the field of testing and metrology. Realize internationally
recognised doctorates in measurement science. Establishment of
the Trainning Center and Help Desk for continous education and
dissemination of knowledge and good practice.
229
Acron / Ref
Title
SMARDO / IT/LA/323/2005
Smart System for Monitoring of Wild Dolphin – Antropogenic
Factors Interactions
Descript.
1. Study, development, implementation and testing of different
systems to track dolphins. 2. Development and implementation of a
distributed monitoring system for the acquisition and recording of
wide-band acoustic signals (up to 200 kHz) associated with both
wild dolphins’ community and anthropogenic underwater noise. 3.
Evaluation of water parameters that affect dolphins’ behaviour and
deployment of units to measure and remotely transmit the values
of those parameters using solutions already developed by some of
team’s members in the context of FCT project Global Monitoring
Based on Smart Sensors for Environment Quality. 4. Design and
implementation of advanced techniques to analyse the data
acquired by the hydrophones using namely time-frequency and
neural networks based techniques in order to filter, compress, fuse,
and classify the patterns of the acoustic signals and water quality
parameters’ values. 5. Creation of a SMARDO Web site where
projects’ results are published and through which team’s obtained
experimental data can be accessed by the national and international
community.
Acron / Ref
ESPECTRO
Title
Spectrum Monitorization and Control Integration of Infrastructures
Descript.
The purpose of this project is to automate the measuring procedures
used in the different Monitoring Centers of ANACOM (Portuguese
Telecommunications
Regulator)
to
monitor
and
control
the
radiofrequency spectrum in Portuguese territory. The automation
must allow remote operation, that is to say, to perform tests for
instance in Azores from another Center, namely the main one sited
230
in Barcarena.
Acron / Ref
CAR
Title
Vehicular Electronics
Descript.
Power electronics for vehicles; drives for electric vehicles; power
conversion in ICE vehicles; new applications of power electronics
231
4.4.5
Final Year Projects
Supervisor
Student
Title
End Date
Plataforma modular para
Fernando Lopes
Pedro Monteiro &
aquisição, armazenamento,
Nuno Carlos
processamento e transmissão
7/2005
de sinais”
Nuno Horta
Daniel Chang Yan
GENCHESS II: Xadrez
Inteligente
7/2005
LAYGEN: Gerador de Layout
Nuno Horta
Nuno Lourenço
com Recurso a Técnicas de
7/2005
Computação Evolutiva
Eduardo de Sousa
Saraiva
Helena Ramos
Estudo sobre lâmpadas
Daniel Teixeira
fluorescentes e balastros
9/2005
electrónicos
Martin Novotny
Characterization of a 4Electrode Conductivity Sensor
9/2005
Estudo do efeito da introdução
Marina Perdigão
Sérgio Chaves
de Controladores FACTS numa
9/2005
rede de energia eléctrica
Optimization of the extraction
Manuel Matos
Ana Luísa Mendonça process of metals from urban
10/2005
soils
Nuno Horta
Daniel Gomes &
VIDEO Chat para Aula Virtual
Ruben Marinho
num Ambiente de E-Learning
10/2005
232
Supervisor
Student
Title
End Date
VIANET II: Editor
Nuno Horta
Francisco Espinheira HTML/Javascript de Conteúdos
& Miguel Domingos
Normalizados para Ambientes
10/2005
de E-Learning
VIANET II: Sistema de
Nuno Horta
João Figueiredo &
Monitorização e Recomendação
Pedro Silva
para um Ambiente de E-
10/2005
Learning
Pedro Ramos
Pedro Rodrigues
Design and Characterization of
a Sun Sensor
11/2005
Análise Quantitativa de
Raúl Martins
Rui Guerreiro Barata Espectroscopia RMN in vivo no
11/2005
Cérebro
Pedro Ramos
Pedro Ramos
Pedro Ramos
Gaudêncio Fernandes
& José Costa Neves
João Rosa Dias &
João Carlos Lourenço
Ricardo dos Santos &
João Filipe Ferreira
Testing system for the I/O
modules of Metropolitano de
12/2005
Lisboa subway
Flexible system for electrical
power consumption monitoring
12/2005
with GSM
Simulation of driver functions
in the Metropolitano de Lisboa
12/2005
subway
Conversor Elevador de Tensão
Beatriz Borges
Rui Oliveira Francisco
para Iluminação de Écrans de
Equipamentos Electrónicos
1/2006
Portácteis
Luís A. Alexandre
Ana Germano
Entropic Neural Networks: a
fast implementation
2/2006
233
Supervisor
Raúl Martins
Student
Luis Soares
Title
Sistema Portátil para Registo
de Electrocardiograma
End Date
2/2006
WEBCONF II: Sistema de
Nuno Horta
Luís Mendes
Gestão e Organização de
3/2006
Conferências na WWW
Optimização de Estratégias de
Nuno Horta
Marco Carola
Combate a Incêndios Florestais
utilizando Técnicas de
3/2006
Computação Natural
Nuno Horta
Tiago Oliveira &
Vasco Justino
Adriano Jorge &
André Mendes
Pedro Santos &
Ricardo Lima
VIANET II: Sistema de Gestão
de Avaliações Online num
3/2006
Ambiente de E-Learning
A utilização de filtros activos de
potência em indústrias com
múltiplos conversores de
6/2006
frequência
Interligação dos sistemas de
André Mendes
Fernando da Silva
produção de energia eólica com
6/2006
a rede eléctrica de distribuição
António Victor
Anunciada
Beatriz Borges
António Victor
Anunciada
Beatriz Borges
António Victor
Anunciada
Beatriz Borges
Beatriz Borges
António Ferreira &
Monitoring System for
Gonçalo Mendes
Photovltaic Pannels
Bruno Guerreiro &
Electronic System for Energy
Bruno Cardoso
Storage
Tiago Silva &
DC-DC Converter for
João Filipe Santos
Photovoltaic Cells
Filipa Figueiredo
Contactless Batery Charger for
Mobile Telephone
7/2006
7/2006
7/2006
7/2006
234
Supervisor
Beatriz Borges
Fernando Lopes
Student
Pedro Proença &
Filipe Silva
Title
End Date
Efficiency Optimization in
resonant power supply with
7/2006
sincronous rectifier
Victor Nunes &
Controlo integrado de acesso
Paulo Simões
em edifícios
7/2006
VIANET III: Editor
Nuno Horta
Ana Coelho &
HTML/Javascript de Conteúdos
Rui Dias
Normalizados para Ambientes
7/2006
de E-Learning
Optimização do Projecto de
Nuno Horta
Filipe Alves
Circuitos Integrados baseada
em Técnicas de Computação
7/2006
Evolutiva
VIANET III: Sistema
Nuno Horta
Marco Lourenço
Inteligente de Tutoria para
7/2006
Ambiente de E-Learning
LAYGEN II: Gerador de Layout
Nuno Horta
Michele Vianello
7/2006
Nuno Horta
Nuno Horta
Francisco Alegria
Nuno Cordeiro &
Ricardo Cristino
Samuel Pinto &
Vitor Pelado
Pedro Pedroso
PEDIAGNOSIS - Sistema de
Diagnóstico para o Domínio da
7/2006
Pediatria
Modelação e Projecto de
Circuitos numa Tecnologia de
7/2006
Polímeros
Educational Platform for the
Teachng of Phase Locked Loops
10/2006
235
Supervisor
Student
Title
End Date
Correcção da Característica de
Raúl Martins
Paulo Proença &
Sensores em Sistemas de
Pedro Ferreira
Monitorização da Qualidade da
11/2006
Água
Artur Lopes Ribeiro
Rui Miguel Alberto &
Carlos Miguel Graça
Construção de uma Suspensão
Electromagnética Utilizando
12/2006
Ímanes Permanentes
Table 34 – List of Final Year Projects running in the Basic Sciences and Enabling Technologies
Area during 2005
MSc Theses
Supervisor
Student
Title
End Date
Solution of three global
Joaquim Júdice
C. Baptista
optimization problems arising in
finance, hydraulics and
2/2005
telecommunications
António Cardoso
António Victor
Anunciada
Maria Celeste
Gouveia
Acácio Amaral
Diagnostics and Fault Analysis
of DC-DC Converters
3/2005
Hugo Ribeiro
Single-stage AC-DC converters
3/2005
Marisa Lapa Toste
Mathematics of Social Choice
4/2005
António Cardoso
José Luís Silva
of Bearings in Three-Phase
5/2005
Induction Motors
Development of a Prototype for
António Cardoso
Manuel Esteves
Fault Diagnosis in the Windings
5/2005
of Three-Phase Transformers
236
Supervisor
Maria Celeste
Gouveia
Student
Ana Ester Rodrigues
Title
Applications of generalized
inverses to matrix equations
End Date
6/2005
A volume associated to mxn
Maria Celeste
Gouveia
Isabel Marinho
matrices. Applications in the
computation of the Moore-
7/2005
Penrose inverse.
Sistema para Gestão Inteligente
Nuno Horta
David Simões
de Conteúdos numa Plataforma
7/2005
de E-Learning
António Victor
Anunciada
Manuel Ferreira
Power Quality Disturbances in
Telecom Plants
12/2005
Development and
Implementation of a
José Dias Pereira
Carlos Banha
Multiparametric Measurement
System for Water Quality
1/2006
Assesment with Self-Calibration
Capabilities
Sistema para Gestão Inteligente
Nuno Horta
Rui Luís
de Informação numa Plataforma
de E-Learning com Recurso a
1/2006
Técnicas de Data Mining
E-Design/ E-Trainig - Ambiente
Nuno Horta
Gonçalo Neves
para Suporte a Serviços de
4/2006
Apoio ao Projecto na WWW
António Victor
Anunciada
Francisco Nunes
Resonant Converters
9/2006
Automatization of the control
Francisco Alegria
José Lopes
procedure of a particle
10/2006
acelerator
237
Supervisor
António Cardoso
António Victor
Anunciada
António Victor
Anunciada
António Victor
Anunciada
Student
Carlos Manuel
Cordeiro Duarte
Carlos Ferreira
Title
End Date
Maintenance Management and
Organization in Small Power
11/2006
Substations
Audio Switch Mode Amplifiers
12/2006
Power Quality Standards versus
Manuel Abraços
Reliability of Electronic
12/2006
Equipment
Modeling Power Quality
Rui Alcobia
Disturbances in Residential
12/2006
Urban Areas
Helena Ramos
Mário Jorge Alves
Manuel Matos
Hugo Felix Silva
Plataforma Aberta para
Sensores Inteligentes
PGEs determination in Lisbon
Soils
12/2006
12/2006
LAYGEN: Gerador de Layout
Nuno Horta
Nuno Lourenço
12/2006
Pedro Silva Girão
Nuno Gueiral
Ensaio de Próteses Utilizando
Sensores Acústicos Inteligentes
12/2006
Superheated Droplet Detectors
Raúl Martins
Miguel da Costa
Neutron Dosimetry
12/2006
Instrumentation
238
Supervisor
Student
Title
End Date
António Cardoso
Nuno Vieira Lopes
of Permanent Magnet
11/2007
Synchronous Generators
Modelação Automática do
Nuno Horta
João Lima
Desempenho de Circuitos
12/2007
Integrados
Optimização de Estratégias de
Nuno Horta
Marco Carola
Combate a Incêndios Florestais
utilizando Técnicas de
12/2007
Computação Natural
Design and characterization of a
Pedro Ramos
Pedro Rodrigues
sun sensor for the SSETI-ESEO
12/2007
project
Table 35 – List of MSc Theses running in the Basic Sciences and Enabling Technologies Area
during 2005
239
PhD Theses
Supervisor
Student
Title
End Date
Global optimization and
Joaquim Júdice
I. Ribeiro
applications to structural
2/2005
engineering models
Fault Tolerance in
António Cardoso
Adérito Neto Alcaso
Electromechatronic Systems
Based on the Load Commutated
3/2005
Current Source Inverter
Three-Phase Induction Motor
António Cardoso
André Santos
Performance Analysis When Fed
Mendes
by a Fault Tolerant Voltage
7/2005
Source Inverter
Rui Teives Henriques João Carlos Dias
Search for new spin-ladder
materials
12/2005
Interior-point algorithms and
Joaquim Júdice
J. M. Patrício
applications to structured
1/2006
complementarity problems
Joaquim Júdice
P. Tavares
Localization models in civil
engineering
7/2006
Modelling and measurement
António Cruz Serra
Henrique Quaresma electromagnetic interference in
12/2006
electronic devices
António Cruz Serra
Pedro Girão
Ricardo de Queirós
High resolution ultrasound
measurements
12/2006
240
Supervisor
Student
António Victor
Anunciada
End Date
Resonant Switching
Raúl Monteiro
Beatriz Borges
Beatriz Borges
Title
Technologies for Mains
12/2006
Converters
Stanimir Stoyanov
Valtchev
Study of the Energy Balance in
Resonant Converters Applied to
12/2006
Contactless Energy Transfer
Mathematical programming
Joaquim Júdice
M. C. Brás
problems with equilibrium
constraints and applications to
12/2006
combinatorial optimization
Cooperative Modular Neural
Luís A. Alexandre
Jorge Manuel Santos Networks with Support Vector
12/2006
Machines
Development and Analysis of
Luís A. Alexandre
Luís Miguel Silva
Entropic Neural Networks for
12/2006
Classification
Síntese e Optimização
Nuno Horta
Jorge Guilherme
Manuel Barros
Automática de Circuitos e
Sistemas Baseada em Técnicas
12/2006
de Computação Evolutiva
Rui L. Aguiar
Miguel Madureira
Projecto de Receptores
Integrados de Banda Larga
12/2006
Projecto e Implementação de
Pedro Silva Girão
Vítor Viegas
uma Plataforma NCAP/XML para
7/2007
Transdutores Inteligentes
High Frequency DC-DC soft
Beatriz Borges
Vitor da Silva Costa switching converters for
12/2007
“System–on–a–Chip (SoC)”
Helena Ramos
Paulo da Silva Maia
Electronic tongues and noses
12/2007
241
Supervisor
Student
Title
End Date
Analysis and Numerical Solution
Joaquim Júdice
S. Rosa
of some Structural Optimization
12/2007
Problems
Luís A. Alexandre
Hugo Proença
Biometric Systems
12/2007
Técnicas de análise de padrões
Pedro Silva Girão
Paulo Maia Santos
multivariados resultantes de
sinais adquiridos por sensores
12/2007
pouco selectivos
Circuitos Analógicos em Modo
Rui L. Aguiar
Luís Moreira Alves
de Corrente com Grande
12/2007
Largura de Banda
António Victor
Anunciada
Hugo Marques
Active Power Filters
7/2008
Design and Implementation of a
José Dias Pereira
Vítor Viegas
NCAP/XML Platform Based on
IEEE 1451 Standard for
7/2008
Industrial Fieldbus Applications
Fault Diagnosis in Electrical
António Cardoso
M'hamed Drif
Drives by the Motor Signature
12/2008
Analysis
António Cruz Serra
Nuno Bandeira Brás
Manuel Matos
Nelson da Silva
Power quality digital
measurement instrumentation
Biosensors for environmental
analysis
12/2008
12/2008
Table 36 – List of PhD Theses running in the Basic Sciences and Enabling Technologies Area
during 2005
242
4.4.6
Publications
4.4.6.1 Applied Mathematics
Books
-
Júdice,
J.
J.;
L. M.
Fernandes;
Equações
Não
Lineares
e
Optimização
Unidimensional, Departamento de Matemática, Universidade de Coimbra, Imprensa
da Universidade de Coimbra, Coimbra, 2005.
Book Chapters
- Júdice, J. J.; A. Neves; A. Faustino; I. Ribeiro; “On the use of bilevel
programming for solving a structural optimization problem with discrete variables”Chapter in Optimization with Multivalued Mappings: Theory, Applications and
Algorithms, S. Dempe and S. Kalashnikov, Kluwer Academic, 2005.
Papers in Journals
- Figueiredo, I.; J. J. Júdice; S. Rosa; “A class of structural mathematical programs
with equilibrium constraints: a smooth algorithm and applications to contact
problems”, Optimization and Engineering, Vol. 6, No. 1, pp. 203 - 234, January,
2005.
- Sobrinho, J. L. S.; J. Dias; P. Aguiar; “O M(in)istério da Educação: ou o Problema
da Colocação de Docentes 2004/2005”, Ingenium, Vol., No. 87, pp. 70 - 73, May,
2005.
- Gouveia, M. C.G.; “On the solution of Sylvester, Lyapunov and Stein equations
over arbitrary rings”, International Journal of Pure and Applied Mathematics, Vol.
24, No. 1, pp. 135 - 141, October, 2005.
- Júdice, J. J.; P. Martins; J. Nunes; “Workforce planning in a lotsize mail processing
problem”, Computers and Operations Research, Vol. 32, No. 1, pp. 3031 - 3058,
January, 2005.
243
- Morgado, J.; A. Gomes; “A generalized false position numerical method for finding
zeros and extrema of a real function”, Proc International Conf. of Computational
Methods in Sciences and Engineering - ICCMSE, Loutraki, Greece, Vol. 4A, pp. 425
- 428, October, 2005.
- Lavrador, P.M.L.; J. C. Pedro; NBC Carvalho; “A New Nonlinear Behavioral Model
Extracted Orthogonally”, Proc Conf. on Design of Circuits and Integrated Systems,
Lisbon, Portugal, November, 2005.
- Lavrador, P.M.L.; J. C. Pedro; NBC Carvalho; “A New Nonlinear Quasi-Orthogonal
Model Extracted in the Frequency Domain”, Proc Conf. on Telecommunications ConfTele, Tomar, Portugal, April, 2005.
- Ribeiro, M. A.; C. R. Paiva; “Formulação teórica do electromagnetismo usando
uma
álgebra
geométrica
de
formas
diferenciais”,
Proc
Encuentro
de
Electromagnetismo Computacional, Seia, Portugal, September, 2005.
- Ribeiro, M. A.; C. R. Paiva; “From Coulomb's Law to Maxwell Equations: An
Approach Using Differential Forms”, Proc Conf. on Telecommunications - ConfTele,
- Pereira, J. R.; J. R. Pereira; “Solving Maxwell’s Equations using Interpolating
Wavelets”, Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. 1,
pp. 100 - 105, April, 2005.
4.4.6.2 Impact of Telecommunications on Society
- Alexandre, I.; M. J. Trigueiros; AND. Cardoso; F.C. Cercas; Sá da Costa; “DCTI a
caminho de Bolonha”, Proc Conf. da Associação Portuguesa de Sistemas de
Informação, Bragança, Portugal, Vol. 1, pp. 100 - 112, October, 2005.
- Correia, L. M.; “Mobile and Wireless Communications: What’s next?”, Proc
Journées de Réflexion du LETI, Grenoble, France, Vol., March, 2005.
- Correia, L. M.; “Mobile phones: myths and facts”, Proc Forum Nacional de
Medicina no Trabalho, Lisboa, Portugal, Vol., September, 2005.
244
- Oliveira, C.O.; D.M. Sebastião; G.C. Carpinteiro; L. M. Correia; C. A. Fernandes;
“Projecto monIT – Monitorização de Radiação Electromagnética em Comunicações
Móveis”, Proc Jornadas de Engenharia de Electrónica and Telecomunicações and de
Computadores do ISEL, Lisboa, Portugal, November, 2005.
- Oliveira, C.O.; G.C. Carpinteiro; D.M. Sebastião; L. M. Correia; C. A. Fernandes;
“Projecto monIT: Resultados da Monitorização de Campos Electromagnéticos em
Portugal”, Proc Jornadas de Protecção contra Radiações, Lisboa, Portugal, Vol. I,
November, 2005.
- Oliveira, C.O.; G.C. Carpinteiro; L. M. Correia; C. A. Fernandes; “The monIT
Project: Risk Communication on Exposure to Electromagnetic Radiation from Mobile
Communications”, Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal,
April, 2005.
-
Correia,
L.
M.; “Towards Mobile Broadband Multimedia Networks”, Proc
International Conference on Information Processing and Transport for Challenging
Society Needs, Vitznau, Switzerland, Vol., June, 2005.
4.4.6.3 Instrumentation and Measurement
Book Chapters
- Beard, C. S.; B. G. Lipták; P.M. Girão; “Actuators: Digital, Electric, Hydraulic,
Solenoid”- Chapter in Instrument Engineers' Handbook - Process Control and
Optimization, Béla G. Lipták, CRC-Taylor & Francis Group, 2005.
- Girão, P.M.; “Controllers - Electronic”- Chapter in Instrument Engineers'
Handbook - Process Control and Optimization, Béla G. Lipták, CRC-Taylor & Francis
Group, 2005.
- Mamzic, C. L.; P.M. Girão; “Controllers - Pneumatic”- Chapter in Instrument
Engineers' Handbook - Process Control and Optimization, Béla G. Lipták, CRCTaylor & Francis Group, 2005.
- Venczel, J.; B. G. Lipták; P.M. Girão; “Digital Readouts and Graphic Dislays”Chapter in Instrument Engineers' Handbook - Process Control and Optimization,
Béla G. Lipták, CRC-Taylor & Francis Group, 2005.
245
- Marton, F. D.; G. F. Erk; B. G. Lipták; P.M. Girão; “Recorders, Oscillographs,
Loggers, Tape Recorders”- Chapter in Instrument Engineers' Handbook - Process
Control and Optimization, Béla G. Lipták, CRC-Taylor & Francis Group, 2005.
Papers in Journals
- Serra, A.C.; P. Daponte; L. Michaeli; “ADC and DAC modelling and testing - state
of the art”, Metrology and Measurement Systems, Vol. XII, No. 3, pp. 231 - 248,
October, 2005.
- Serra, A.C.; M. F. Silva; P.M. Ramos; RCM Martins; L. Michaeli; J. Saliga;
“Combined spectral and histogram analysis for fast ADC testing”, IEEE Trans. on
Instrum. and Measurement, Vol. 54, No. 4, pp. 1617 - 1623, August, 2005.
- Alegria, F. ; A. Moschita; P. Carbone; A.C. Serra; D. Petri; “Effective ADC
Linearity Testing”, IEEE Trans. on Circuits and Systems I, Vol. 52, No. 7, pp. 1267 1275, July, 2005.
- Quaresma, HJQ; A. Silva; A.C. Serra; “Error Correction Technique for Dynamic
Impedance Measurement”, IEEE Trans. on Instrum. and Measurement, Vol. 54, No.
3, pp. 1249 - 1253, June, 2005.
- Alegria, F. ; A.C. Serra; “Overdrive in the Ramp Histogram Test of ADCs”, IEEE
Trans. on Instrum. and Measurement, Vol. 54, No. 6, pp. 2305 - 2309, December,
2005.
- Postolache, O.; P.M. Girão; J. M. Dias Pereira; H. G. Ramos; “Self-organizing
Maps Application in a Remote Water Quality Monitoring System”, IEEE Trans. on
Instrum. and Measurement, Vol. Vol. 54, No. 1, pp. 322 - 329, February, 2005.
- Silva, N.; M. I. Lopes; R. A. Leitão; H. F. Silva; M. Matos; “Simultaneous
Monitoring of Toxic Metals on White Poplar (Populus) by SWASV”, Journal of the
Brazilian Chemical Society, Vol. 16, No. 6A, pp. 1275 - 1282, December, 2005.
- Silva, N.; M. I. Lopes; R. A. Leitão; H.S. Silva; M. Matos; “Simultaneous
Monitoring of Toxic Metals on White Poplar (Populus) by SWASV”, Journal of the
Brazilian Chemical Society, Vol. 16, No. 6A, pp. 1275 - 1282, December, 2005.
- Alegria, F. ; A.C. Serra; “Uncertainty of ADC Random Noise Estimates Obtained
With the IEEE 1057 Standard Test”, IEEE Trans. on Instrum. and Measurement,
Vol. 54, No. 1, pp. 110 - 116, February, 2005.
246
- Dias Pereira, J. M.; O. Postolache; P.M. Girão; “Using a Dual-Channel FDC Device
and ANN Techniques to Improve Measurements Accuracy”, Sensors & Transducers
Magazine, Vol. 62, No. 12, pp. 462 - 472, December, 2005.
- Dias Pereira, J. M.; O. Postolache; P.M. Girão; “A Digitally Programmable A/D
Converter for Smart Sensors Applications”, Proc IEEE Instrumentation and
Measurement Technology Conf., Ottawa, Canada, Vol. 1, pp. 156 - 159, May, 2005.
- Lopes, F.; “A modular and Highly Configurable Signal Acquisition, Processing and
Interfacing Platform”, Proc International Conference on Electrical Engineering CEE'05, Coimbra, Portugal, Vol. I, pp. 146 -, October, 2005.
- Dias Pereira, J. M.; O. Postolache; P.M. Girão; “A Self-Adaptable Method to
Optimize the Performance of Frequency-to-Code Conversion Based Measurement
Systems”, Proc International Workshop on Intelligent Data Acquisition and
Advanced Computing Systems, Sofia, Bulgaria, Vol. 1, pp. 295 - 298, September,
2005.
- Dias Pereira, J. M.; O. Postolache; P.M. Girão; “Adaptive Self-Calibration
Algorithm for Smart Sensors Linearization”, Proc IEEE Instrumentation and
Measurement Technology Conf., Ottawa, Canada, Vol. 1, pp. 648 - 652, May, 2005.
- Amaral, A.M.R.; A. J. M. Cardoso; “An Esr meter for High frequencies”, Proc
International Conf. on Power Electronics and Drive Systems - PEDS, Kuala Lumpur,
Malaysia, Vol. 1, pp. 1628 - 1633, November, 2005.
- Amaral, A.M.R.; A. J. M. Cardoso; “An Experimental Technique for Estimating the
Aluminium Electrolytic Capacitor Equivalent Circuit, at High Frequencies”, Proc IEEE
International Conf. on Industrial Technology, Hong Kong, Hong Kong, Vol. 1, pp. 86
- 91, December, 2005.
- Ramos, P.M.; M. F. Silva; A.C. Serra; “Applying sine-fitting algorithms beyond the
Nyquist limit”, Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal,
April, 2005.
- Postolache, O.; P.M. Girão; J. M. Dias Pereira; H. G. Ramos; “Auto Calibration of
Stand-alone Filed Operating Sensors for Distributed Water Quality Monitoring
Systems”, Proc Imeko TC4 Symp., Gdynia/Jurata Poland, Poland, Vol. Vol I, pp. 75
- 80, September, 2005.
247
- Postolache, O.; P.M. Girão; “Automation and Remote Operation of RF Spectrum
Monitoring Systems”, Proc Conf. on Telecommunications - ConfTele, Tomar,
Portugal, Vol. I, pp. 1 - 4, April, 2005.
- Ramos, H. G.; H. G. Ramos; O. Postolache; J. M. Dias Pereira; P.M. Girão;
“Development and Characterization of a Conductivity Cell for Water Quality
Monitoring”, Proc IEEE International Conference on Signals, Systems, Devices SSD, Sousse, Tunisia, Vol. 1, pp. 00 - 00, March, 2005.
- Radil, T.; P.M. Ramos; A.C. Serra; “DSP based portable impedance measurement
instrument
using
sine-fitting
algorithms”,
Proc
IEEE
Instrumentation
and
Measurement Technology Conf., Ottawa, Canada, Vol. 2, pp. 1018 - 1022, May,
2005.
- Dias Pereira, J. M.; “Hardware and Software based Solutions to obtain Flexible
and Adaptive Flow Characteristics of Control Valves”, Proc Congresso LusoMoçambicano de Engenharia, Maputo, Mozambique, Vol. 1, pp. 221 - 225, August,
2005.
- Postolache, O.; J. M. Dias Pereira; P.M. Girão; “Heavy Metal Concentration
Measurement Based on Virtual Instrumentation”, Proc Conf. on Telecommunications
- ConfTele, Tomar, Portugal, Vol. I, pp. 5 - 9, April, 2005.
- Postolache, G.; L. Silva-Carvalho; O. Postolache; P.M. Girão; “HRV and BPV
neural network model with wavelet based algorithm calibration”, Proc Imeko TC4
Symp., Athens, Greece, Vol. 2, pp. 451 - 456, September, 2005.
- Ramos, H. G.; O. Postolache; J. M. Dias Pereira; P.M. Girão; “IEEE 1451
Correction Engine to Temperature Compensation of Magnetoresistive Sensors”, Proc
IEEE Instrumentation and Measurement Technology Conf., Ottawa, Canada, Vol. I,
pp. 560 - 564, May, 2005.
- Ramos, P.M.; T. Radil; A.C. Serra; “Implementation of sine-fitting algorithms in a
DSP based portable instrument for impedance measurement”, Proc Conf. on
- Postolache, O.; P.M. Girão; J. M. Dias Pereira; H. G. Ramos; “Intelligent
Processing of the Dynamic Response of Sensors for Water Quality Monitoring”, Proc
IEEE International Conference on Signals, Systems, Devices - SSD, Sousse, Tunisia,
Vol. I, pp. 00 - 00, March, 2005.
- Girão, P.M.; J. M. Dias Pereira; O. Postolache; “Mulisensor Data Fusion and its
Application to Decisin Making”, Proc Advanced Mathematical and Computational
248
Tools in Metrology - AMCTM, Costa da Caparica, Portugal, Vol. 0, pp. 0 - 0, June,
2005.
- Postolache, O.; G. Postolache; L. Silva-Carvalho; P.M. Girão; “Portable Instrument
for Autonomic Nervous System Analysis”, Proc Imeko TC4 Symp., Gdynia/Jurata,
Poland, Vol. Vol I, pp. 312 - 317, September, 2005.
- Alegria, F. ; A.C. Serra; “Precision of ADC Gain and Offset Error Estimation with
the Standard Histogram Test”, Proc IEEE Instrumentation and Measurement
Technology Conf., Ottawa, Canada, Vol. 1, pp. 282 - 286, May, 2005.
- Queirós, R.; P.M. Girão; A.C. Serra; “Single-Mode Piezoelectric Ultrasonic
Transducer Equivalent Circuit Parameter Calculations and Optimization Using
Experimental Data”, Proc Imeko TC4 Symp., Gdynia, Jurata, Poland, Vol. II, pp.
468 - 471, September, 2005.
- Postolache, O.; J. M. Dias Pereira; P.M. Girão; “Smart Sensor Network for Air
Quality Monitoring”, Proc IEEE Instrumentation and Measurement Technology Conf.,
Ottawa, Canada, Vol. 1, pp. 537 - 542, May, 2005.
- Ramos, P.M.; A.C. Serra; “Tailored Multi-Harmonic Signals for Impedance
Measurements
with
Waveform
Fitting
Algorithms”,
Proc
IEEE
International
Conference on Signals, Systems, Devices - SSD, Sousse, Tunisia, Vol. 4, pp. 1 - 5,
March, 2005.
- Feng, D.; J. M. Dias Pereira; “The Application of Ultrasonic Sensors in Smart
Flowmeters”, Proc Multi-conference on Systemics, Cybernetics and Informatics,
Orlando, United States, Vol. 9, pp. 297 - 301, July, 2005.
- Ribeiro, A. L.; “The k-factor in Inductive Conductivity Sensors for Water Salinity
Measurement”, Proc IEEE International Conference on Signals, Systems, Devices SSD, Sousse, Tunisia, Vol. 1, pp. 226 - 226, March, 2005.
- Alegria, F. ; A.C. Serra; “Use of Overdrive in the Histogram Test of ADCs”, Proc
Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. 1, pp. 6 - 8, April,
2005.
- Viegas, V.V.; J. M. Dias Pereira; P.M. Girão; “Using a Commercial Framework to
Implement and Enhance the IEEE 1451.1 Standard”, Proc IEEE Instrumentation and
Measurement Technology Conf., Ottawa, Canada, May, 2005.
249
Project Reports
- Ramos, H. G.; “Relatório Técnico Científico Final do Projecto Global Monitoring
Based
on
Smart
Sensors
for
Environment
Quality”,
FCT,
POCTI/PNAT/1999/EEI/15052, April, 2005.
4.4.6.4 Integrated Circuits and Systems
Book Chapters
- Pedro, J. C.; “Intermodulation”- Chapter in Wiley Encyclopedia of RF and
Microwave Engineering, K. Chang, John Wiley & Sons, New York, 2005.
- Pedro, J. C.; NBC Carvalho; “Mixed Time and Frequency Domain Behavioral
Modeling and Simulation”- Chapter in Fundamentals of Nonlinear Behavioral
Modeling - Foundations and Applications, J. Wood and D. Root, Artech House,
Norwood, 2005.
Papers in Journals
- Pedro, J. C.; “A Comparative Overview of Microwave and Wireless Power Amplifier
Behavioral Modeling Approaches”, IEEE Trans. on Microwave Theory and Tech., Vol.
53, No. 4, pp. 1150 - 1163, April, 2005.
- Aguiar, R. L.; M. Figueiredo; “Design and Performance of 155Mbps Clock/Data
Recovery Circuits on Heavy Loaded PLDs”, International Journal of Analogue
Integrated Circuits and Signal Processing, Vol. 0, No. 0, pp. 0 - 0, March, 2005.
- K. Tan, K.; G.M. Marques; J.M.C.V. Vaz; J. Costa Freire; “MMIC Lumped and
Transversal Filter with LC Tuned Amplifiers”, Microwave Engineering Europe, Vol. 1,
No. 11, pp. 57 - 61, November, 2005.
250
- Fortes, F.; J. Costa Freire; D. Leenaerts; R. Mahmoudi; A. Roermund; “A 28.5GHz
Monolithic Cascode LNA with 70GHz fT SiGe HBTs”, Proc European Solid-State
Circuits, Grenoble, France, Vol. 1, pp. 93 - 96, September, 2005.
- Guilherme, J.G.; “A Logarithmic Pipeline A/D Converter in 0.25mm CMOS
Technology”, Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol.
1, pp. 1 - 2, April, 2005.
- Quaresma, HJQ; P.M. Santos; A.C. Serra; AND. Sicard; “A Methodology for
Extracting Unknown Integrated Circuit Process Parameters”, Proc IEEE International
Conf. on Electronics, Circuits and Systems, Gammarth, Tunisia, Vol. 1, pp. 84 - 88,
December, 2005.
- Aguiar, R. L.; M. Madureira; M. Violas; P. Monteiro; “An Electrically Adjustable
Distributed Pulse Shaping Filter for 40-Gbit/s Optical Links”, Proc IEEE International
Symp. on Circuits and System, Kobe, Japan, Vol. 1, pp. 1 - 1, May, 2005.
- Horta, N.H.; M. Barros ; “An Evolutionary Optimization Approach applied to
Analog Circuit Design”, Proc Conf. on Telecommunications - ConfTele, Tomar,
- Horta, N.H.; M. Barros ; “An Evolutionary Optimization Kernel with Adaptive
Parameters applied to Analog Circuit Design”, Proc International Symp. on Signals,
Circuits and Systems, Iasi, Romania, Vol., July, 2005.
- Aguiar, R. L.; V.M. Monteiro; A. Gameiro; “An IP Interface For Simulation of
Packet Data Performance in Cellular Networks”, Proc Conf. on Telecommunications ConfTele, Tomar, Portugal, Vol. 0, pp. 0 - 0, May, 2005.
- Horta, N.H.; “Analog and Mixed-Signal IC Design Automation: Synthesis and
Optimization Overview”, Proc Conf. on Telecommunications - ConfTele, Tomar,
- Horta, N.H.; G. Neves ; “Design Automation Methodology for Analog IC Design
Matching Designers Approach”, Proc International Symp. on Signals, Circuits and
Systems, Iasi, Romania, Vol., July, 2005.
- Cabral, P. M.; J. C. Pedro; NBC Carvalho; “Dynamic AM-AM and AM-PM Behavior
in Microwave PA Circuits”, Proc Asia Pacific Microwave Conf. - APMC, Suzhou, China,
December, 2005.
251
- Mendes, L.M.; J.M.C.V. Vaz; M. J. Rosário; “Fully Integrated CMOS LC Voltage
Controlled Oscillator for IEEE802.11a and HiperLAN2 WLAN Transceivers”, Proc
International Conference on Electrical Engineering - CEE'05, Coimbra, Portugal,
October, 2005.
- Bernardino, J.; J.M.C.V. Vaz; “High Q MMIC GaAs Active Filter for K Band
Subsystems”, Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, April,
2005.
- Pedro, J. C.; NBC Carvalho; “Inferring Nonlinear Distortion Performance of Power
Amplifiers Subject to Telecommunications Signals from Two-Tone Measurements”,
Proc IEEE International Microwave Theory and Tech. Symp., Long Beach, United
States, Vol. CDROM, pp. 817 - 820, June, 2005.
- Horta, N.H.; N. Lourenço; “LAYGEN – An Evolutionary approach to automatic
analog IC Layout Generation”, Proc IEEE Conf. on Electronics, Circuits and System,
Tunisia, Vol., December, 2005.
- Pedro, J. C.; J. P. Martins; P. M. Cabral; “New Method for Phase Characterization
of Nonlinear Distortion Products”, Proc IEEE International Microwave Theory and
Tech. Symp., Long Beach, United States, Vol. CDROM, pp. 971 - 974, June, 2005.
- Pedro, J. C.; “Nonlinear System Identification Activities Carried Out by the
Microwaves/RF Electronics Group of IT – University of Aveiro”, Proc Conf. on
Telecommunications - ConfTele, Tomar, Portugal, Vol. CDROM, pp. 0 - 0, April,
2005.
- Aguiar, R. L.; L. Alves; “On the Effect of Time Delays in Negative Feedback
Amplifiers”, Proc IEEE International Symp. on Circuits and System, Kobe, Japan,
Vol. 1, pp. 1 - 1, May, 2005.
- Aguiar, R. L.; L. Alves; “On the Usage of Delayed-feedback in Amplifiers”, Proc
European Conf. on Circuit Theory and Design, Cork, Ireland, Vol. 0, pp. 0 - 0, May,
2005.
- Aguiar, R. L.; M. Madureira; P. Monteiro; M. Violas; “Practical Implementations Of
Monolithic Transversal Filters For Electric Dispersion Compensation On High-Speed
Optical Links”, Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol.
0, pp. 0 - 0, May, 2005.
- Costa Freire, J.; F. Fortes; R. Mahmoudi; A. Roermund; “SiGe Monolithic LNAs for
LMDS”, Proc Conf. on Design of Circuits and Integrated Systems, Lisboa, Portugal,
Vol. abstracts, pp. 186 - 186, November, 2005.
252
Project Reports
- Santos, P.M.; “Mask configurable Intelligent Power Integrated Circuits Applications”, Instituto de Telecomunicações, POCTI/34424/ESE/2000, April, 2005.
4.4.6.5 Power Electronics and Power Systems
Papers in Journals
- Cruz, S. M. A. ; A. J. M. Cardoso; “DSP Implementation of the Multiple Reference
Frames Theory for the Diagnosis of Stator Faults in a DTC Induction Motor Drive”,
IEEE Trans. on Energy Conversion, Vol. 20, No. 2, pp. 329 - 335, June, 2005.
- Cruz, S. M. A. ; A. J. M. Cardoso; “Multiple Reference Frames Theory: A New
Method for the Diagnosis of Stator Faults in Three-Phase Induction Motors”, IEEE
Trans. on Energy Conversion, Vol. 20, No. 3, pp. 611 - 619, September, 2005.
- Perdigão, M.; AND. S. Saraiva; “Electronic Ballast with Wide Dimming Range:
Matlab/Simulink Implementation of a Double Exponential Fluorescent-Lamp Model”,
Proc Jornadas Hispano Lusas de Ingenieria Eléctrica, Marbella, Spain, Vol. cd, pp.
pp - pp, July, 2005.
- Perdigão, M.; AND. S. Saraiva; “Electronic Ballast with Wide Dimming Range:
Matlab/Simulink Implementation of a Third Order Fluorescent-Lamp Model”, Proc
International Conference on Electrical Engineering - CEE'05, Coimbra, Portugal, Vol.
cd, pp. pp - pp, October, 2005.
- Perdigão, M.; AND. S. Saraiva; “Influence Of Harmonic Inverter Voltage
Components On The Behaviour Of Electronic Ballasts”, Proc Universities Power
Engineering Conf. - UPEC, Cork, Ireland, Vol. cd, pp. pp - pp, September, 2005.
- Anunciada, A.; H. Marques; “A New Hybrid Active Power Filter Topology Enabling
Low
Voltage
Switching
Devices
and
Storage
Capacitors”,
Proc
Conf.
on
253
- Anunciada, A.; H. Marques; “A New Hybrid Power Filter Topology Enabling Low
Voltage Switching Devices and Storage Capacitors”, Proc IEEE Power Electronics
Specialists Conf. - PESC, Recife, Brazil, Vol. 1, pp. 1 - 6, June, 2005.
- Borges, B.; F. Nunes; A. Anunciada; “Comparison of Operating Characteristics,
Design Considerations and Practical Implementation of ZCS and ZVS Flyback Quasiresonant Converters”, Proc Conf. on Telecommunications - ConfTele, Tomar,
- Alcaso, A. A.; A. J. M. Cardoso; “Condition Monitoring and Diagnostics of TwelvePulse LCI Drive Systems”, Proc IEEE International Symp. on Diagnostics for
Electrical Machines, Power Electronics and Drives, Vienna, Austria, Vol. CD-ROM,
pp. 1 - 5, September, 2005.
- Costa, V.C.; P.M. Santos; B. Borges; “Design Method for Integrated CMOS QuasiSquare-Wave DC-DC Converters”, Proc Design, Automation and Test in Europe
Conf., Lisboa, Portugal, Vol., November, 2005.
- Valtchev, S.; B. Borges; B. Kllaassens; “Efficient Resonant Inductive Coupling
Energy Transfer Using New Magnetic and Design Criteria”, Proc IEEE Power
Electronics Specialists Conf. - PESC, Recife, Brazil, Vol. 1, pp. 1 - 6, June, 2005.
- Duarte, M. T.; AND. S. Saraiva; “Influence of the DC Link coil inductance on the
harmonics of slip energy recovery system”, Proc International Conference on
Electrical Engineering - CEE'05, Coimbra, Portugal, Vol. CD, pp. CD - CD, October,
2005.
- Costa, V.C.; P.M. Santos; B. Borges; “Integração Monolítica de Conversores
Comutados CC-CC de Comutação Suave : Soluções de Projecto and Simulações”,
Proc Jornadas de Engenharia de Telecomunicações e Computadores, Lisboa,
Portugal, Vol., November, 2005.
- Costa, V.C.; P.M. Santos; B. Borges; “Integration of Soft-Switching DC-DC
Converters for SoC”, Proc Conf. on Telecommunications - ConfTele, Tomar,
Portugal, Vol. CD-ROM, April, 2005.
- Borges, B.; S. Valtchev; B. Kllaassens; “Magnetic and Design Criteria for Inductive
Coupling Energy Transfer”, Proc Conf. on Telecommunications - ConfTele, Tomar,
- Amaral, A.M.R.; A. J. M. Cardoso; “Modeling and Design Step-Down DC-DC
Converters operating in DCM”, Proc Conf. on Telecommunications - ConfTele,
Tomar, Portugal, Vol. 1, pp. ID1007 - ID1007, April, 2005.
254
- Vieira, A.V.; A. J. M. Cardoso; “Organização and Gestão da Manutenção de
Instituições de Ensino”, Proc Congresso Nacional de Manutenção Industrial, Lisboa,
Portugal, Vol. 1, pp. 1 - 12, November, 2005.
- Alcaso, A. A.; A. J. M. Cardoso; “Power Supply Harmonic Filter Behaviour in a
Twelve-Pulse LCI Drive System Under Power Converter Faults”, Proc IEEE Power
Electronics Specialists Conf. - PESC, Recife, Brazil, Vol. CD-ROM, pp. 2893 - 2897,
June, 2005.
- Alcaso, A. A.; A. J. M. Cardoso; “Power Supply Quality Analysis in a Twelve-Pulse
LCI Drive System Under Compensated Fault-Mode Operation”, Proc Appl. Power
Electronics Conf., Austin, United States, Vol. CD-ROM, pp. 1959 - 1963, March,
2005.
- Anunciada, A.; H. Ribeiro; “Single Stage AC/DC Converter with Input Power Factor
Correction”, Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. 1,
pp. 1 - 4, April, 2005.
- Borges, B.; A. Anunciada; “Switching Audio Power Amplifier with VCI PWM
Modulation”, Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. 1,
pp. 5 - 9, April, 2005.
- Amaral, A.M.R.; A. J. M. Cardoso; “Using an CLC Low-Pass Filter to Reduce the
Consequences of Aging in Steady-State Regime of DC-DC Converters”, Proc
European Conf. on Power Electronics and Applications, Dresden, Germany, Vol. 1,
pp. ID 206 - ID 206, September, 2005.
4.4.6.6 Technology and Materials
Papers in Journals
- Burrows, H.; L. Arnaut; J. Pina; J. Melo; N. Chattopadhyay; L. Alcácer; A. Charas;
J. Morgado; “Characterisation of the triplet state of a fluorene-terthiophene
alternating copolymer”, Chemical Physics Letters, Vol. 402, No. 1-3, pp. 197 - 201,
March, 2005.
- Graf, D.; AND. Choi; J. S. Brooks; J. C. Dias; R. T. Henriques; M. Almeida; M.
Matos; “Charge density wave to mixed density wave phase transition at high fields
255
in (Per)(2)M(mnt)(2) (M = Au, Pt)”, Synthetic Metals, Vol. 153, No. 1-3, pp. 361 364, September, 2005.
- Henriques, R. T.; M. Almeida; “Condutores Moleculares”, QUÍMICA, Vol. 2005, No.
67, pp. 61 - 72, July, 2005.
- Belo, D.; M. Figueira; M. Figueira; J. Mendonça; I. C. Santos; M. Almeida; R. T.
Henriques; M. T. Duarte; C. Rovira; J. Veciana; “Copper, cobalt and platinum
complexes with dithiothiophene-based ligands”, European Journal of Inorganic
Chemistry, Vol. 2005, No. 16, pp. 3337 - 3345, August, 2005.
- Morgado, J.; N. Barbagalho; V. Bodrozic; A. Teixeira; A. Fernandes; R. Guntner;
U. Scherf; F. Cacialli; L. Alcácer; “Indium-tin oxide anodes modified by selfassembly for light-emitting diodes based on blue-emitting polyfluorenes”, Synthetic
Metals, Vol. 154, No. 1, pp. 153 - 156, October, 2005.
- Dias, J. C.; X. Ribas; J. Morgado; J. Seiça; AND. B. Lopes; I. C. Santos; R. T.
Henriques; M. Almeida; K. Wurst; et. al.; “Multistability in a family of DT-TTF
organic radical based compounds (DT-TTF)(4)[M(L)(2)](3) (M = Au, Cu; L = pds,
pdt, bdt)”, Journal of Materials Chemistry, Vol. 15, No. 31, pp. 3187 - 3199,
January, 2005.
- Ribas, X.; M. Mas-Torrent; A. Perez-Benitez; J. C. Dias; H. Alves; AND. B. Lopes;
R. T. Henriques; AND. Molins; I. C. Santos; K. Wurst; “Organic spin-ladders from
tetrathiafulvalene (TTF) derivatives”, Advanced Materials, Vol. 15, No. 3, pp. 1023 1035, March, 2005.
- Morgado, J.; A. Charas; J. Martinho; L. Alcácer; “Photophysical study of two
alternating polyfluorene copolymers exhibiting dual fluoresecence”, Synthetic
Metals, Vol. 154, No., pp. 81 - 84, November, 2005.
- Mitsu, N.; K. Yamaya; M. Almeida; R. T. Henriques; “Pressure effect on chargedensity-wave in Per(2)M(mnt)2 (M = Pt, Au)”, JOURNAL of PHYSICS and
CHEMISTRY OF SOLIDS, Vol. 66, No. 5, pp. 1567 - 1570, May, 2005.
- Lenkens, M.; J. Ascenso; C. Azevedo; A. Dias; M. T. Duarte; H. Ferreira; M.
Ferreira;
R.
T.
Henriques;
M.
Amélia;
et.
al.;
“Titanium
triamidotriamine
compounds: Syntheses, structures and redox properties”, European Journal of
Inorganic Chemistry, Vol. 2005, No. 3, pp. 1689 - 1697, March, 2005.
256
4.4.7
Other Achievements
4.4.7.1 Patents
- Hajduczenia, M.; H. J. A. Silva; P. Monteiro; M. M. Freire; “Monitoring method and
apparatus of processing of a data stream with high rate/flow”, 05023580.3,
October, 2005.
4.4.7.2 Awards
- Henriques, R. T.; “Estímulo à Excelência- FCT, Portugal”, Researchers with more
than 100 publications and over 500 citations referred in the Science Citation Index
of ISI Web of Knowledge were awarded in 2005 by FCT- Foundation for Sience and
Technology, Portugal, according to rules published in 2004., 02-01-2005.
- Ramos, H. G.; “Tutorial”, Analog-to-Digital Converters”, Faculdade de Engenharia
da Universidade Técnica ''Gh. Asachi'' de Iasi, Roménia, 03-12-2005.
- Viegas, V.V.; “Training Course”, Curso de Medidas Eléctricas”, EDP Valor, 19-102005.
- Valadão, G. ; J. Dias; “Seminars”, Discontinuity Preserving Phase Unwrapping
Using Graph Cuts”, Workshop for Optimization in Medicine (Center for International
Mathematics), 20-07-2005.
- Postolache, O.; P.M. Girão; J. M. Dias Pereira; “Invited Talks”, NI Days Portugal FieldPoint and CompactRIO Automated Measurement Systems”, 10-04-2005.
- Ramos, H. G.; “Tutorial”, Software Environments for the Implementation of
Virtual Instruments”, Faculdade de Engenharia da Universidade Técnica ''Gh.
Asachi'' de Iasi, Roménia, 17-01-2005.
- Girão, P.M.; “Technical Audit”, Instituto Electrotécnico Português Metrology and
Tests Laboratory”, 04-01-2005.
257
4.4.8
Other Contributions
−
1ª Conferência Nacional da Sociedade Portuguesa de Metrologia, Organizing
Committee, Pedro Silva Girão, 28-11-2005
−
1st International Conference on Electrical Engineering, Scientific Committee,
Eduardo de Sousa Saraiva, 10-10-2005
−
4º Congresso Luso-Moçambicano de Engenharia, Organizing Committee,
José Dias Pereira, 15-08-2005
−
5th Conference on Telecommunications, Organizing Committee, Luís Merca
Fernandes, 06-04-2005
−
5th Conference on Telecommunications, Technical Programme Committee,
Nuno Horta, 06-04-2005
−
5th
Conference
on
Telecommunications,
CONFTELE'05,
Organizing
Committee, Beatriz Borges, 06-04-2005
−
6th CIC, Funchal, Organizing Committee, Rui Teives Henriques, 31-03-2005
−
7th International Conference on Electronic Measurements and Instruments,
Technical Programme Committee, José Dias Pereira, 15-08-2005
−
9th
European
Workshop
on
ADC
modelling
and
testing,
Technical
Programme Committee, António Cruz Serra, 12-09-2005
−
9th World Multi-Conference SCI 2005, Technical Programme Committee,
−
9th World Multi-Conference SCI 2005, Technical Programme Chairman, José
Dias Pereira, 15-06-2005
−
Design Automation and Test in Europe, DATE 2005, Technical Programme
Committee, Nuno Horta, 30-03-2005
−
IEE - 5th International Conference on Advanced A/D and D/A Conversion
Techniques and their Application (ADDA 2005), Technical Programme
Committee, António Cruz Serra, 25-07-2005
−
IEEE Instrumentation and Measurement Technology Conference, IMC/2005,
Technical Programme Committee, António Cruz Serra, 17-05-2005
258
−
IEEE Sensors 2005, Technical Programme Committee, Pedro Silva Girão, 3110-2005
−
III
International
Conference
Optoelectronic
Information
Technologies,
Technical Programme Committee, José Dias Pereira, 15-04-2005
−
IMEKO
TC-4
14th
International Symposium
measurement
and
instrumentation,
on
Technical
new
technologies
Programme
in
Committee,
António Cruz Serra, 12-09-2005
−
INOC 2005 - International Network Optimization Conference, Scientific
Committee, Joaquim Júdice, 15-03-2005
−
Intelligent Data Acquisition and Advanced Computing Systems, Technical
Programme Committee, José Dias Pereira, 15-09-2005
−
International
Conference
on
Electrical
Engineering
CEE05,
Scientific
Computacional,
Technical
Committee, Fernando Lopes, 10-10-2005
−
IV
Encontro
Ibérico
de
Electromagnetismo
Programme Chairman, António Topa, 07-09-2005
−
Symposium on Metrology and Measurement Applications in the Era of
Internet Working, Technical Programme Committee, Pedro Silva Girão, 2109-2005
−
VII Conference on Advanced Mathematical and Computational Tools in
Metrology, Technical Programme Committee, Pedro Silva Girão, 27-06-2005
−
Workshop on PDE Constrained Optimization, Organizing Committee, Luís
Merca Fernandes, 26-07-2005
−
WSEAS
International
Conference
on
Applied
Mathematics,
Scientific
Committee, Maria Celeste Gouveia, 31-05-2005
4.4.8.2 Refereeing
−
!ª Conferência Nacional da Sociedade Portuguesa de Metrologia, Dinis
Magalhães Santos, 25-11-2005
−
12th IEEE International Conference on Electronics, Circuits and Systems,
ICECS 2005, Nuno Horta, 11-12-2005
−
14th TC4 Symposium of IMEKO, Pedro Silva Girão, 12-09-2005
259
−
5th Conference on Telecommunications, Tomar, Portugal, de 6 a 8 de Abril
de 2005, Francisco Alegria, 01-04-2005
−
9th World Multi-Conference on Systemics, Cybernetics and Informatics,
Pedro Silva Girão, 10-07-2005
−
A NEW METHOD TO DETECT BROKEN ROTOR BARS IN LARGE INDUCTION
MOTORS, Eduardo de Sousa Saraiva, 30-06-2005
−
A vector based sliding mode controller for neutral point clamped multilevel
converters with four legs, Eduardo de Sousa Saraiva, 30-06-2005
−
Advanced Mathematical and Computational Tools in Metrology VII, Series on
Advances in Mathematics for Applied Sciences, Pedro Silva Girão, 29-072005
−
AN IMPROVED METHOD FOR MODELLING A SYNCHRONOUS MOTOR USING
FLUX 2D, Eduardo de Sousa Saraiva, 30-06-2005
−
Analysis of a Series Tap for Half-Wavelength Transmission Lines Using Active
Filters, Eduardo de Sousa Saraiva, 04-01-2005
−
CONVENTIONAL AND SUPERCONDUCTING MOTORS FOR ELECTRIC SHIPS
PROPULSION, Eduardo de Sousa Saraiva, 29-06-2005
−
Design Automation and Test in Europe, DATE 2005, Nuno Horta, 30-03-2005
−
Didactic Modules for a Power Electronics Laboratory, Eduardo de Sousa
Saraiva, 30-06-2005
−
Double Synchronous Reference Frame PLL for Power Converters Control,
Eduardo de Sousa Saraiva, 04-01-2005
−
Gazeta da Matemática, Maria Celeste Gouveia, 31-05-2005
−
IEEE Geoscience an Remote Sensing Letters, José Nascimento, 24-05-2005
−
IEEE IMTC 2005, Pedro Silva Girão, 08-02-2005
−
IEEE Power Electronics Specialists Conference (PESC'05), Acácio Amaral,
Acácio Manuel Amaral, 16-11-2005
−
IEEE Sensors 2005, Pedro Silva Girão, 31-10-2005
−
IEEE Trans on Instrum and Measurement, Octavian Postolache, 10-07-2005
−
IEEE Trans on Instrum and Measurement, Octavian Postolache, 06-05-2005
−
IEEE Transactions on Instrum and Measurement, Octavian Postolache, 3006-2005
−
IEEE Transactions on Microwave Theory Techniques, António Topa, 30-122005
260
−
IEEE Transcations on Geoscience and Remote Sensing, José Nascimento, 2403-2005
−
Journal of Mathematics of Kyoto University, Maria Celeste Gouveia, 09-052005
−
Measurement, Pedro Silva Girão, 23-11-2005
−
''Measurement”, Elsevier Science B. V, Helena Ramos, 01-10-2005
−
Review of Scientific Instruments, American Institute of Physics, António Cruz
Serra, 01-08-2005
−
Reviewer of 9th World-Multiconference SCI'2005, José Dias Pereira, 15-072005
−
Reviewer of ConfTele'2005, José Dias Pereira, 15-04-2005
−
Reviewer of the IEEE Symposium on Circuits and Systems (ISCAS'2005),
−
Simplified Analogical Control of a Unified Power Quality Conditioner, Eduardo
de Sousa Saraiva, 04-01-2005
−
XX Conference on Design of Circuits and Integrated Systems, Pedro Santos,
23-11-2005
261

2005 Annual Report - Instituto de Telecomunicações

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