book of abstracts - BIHTEL-2012

Transcription

BIHTEL 2012
IX International Symposium on Telecommunications
BOOK OF ABSTRACTS
October 2012
Sarajevo, Bosnia and Herzegovina
BIHTEL 2012
IX International Symposium on Telecommunications
Book of Abstracts
IEEE Catalog Number: CFP122U-USB
ISBN: 978-1-4673-4874-4
c
�2012
IEEE
Personal use of this material is permitted. However, permission
to reprint/republish this material for advertising or promotional
purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component
of this work in other works must be obtained from the IEEE.
ii
Organized by
Faculty of Electrical Engineering
University of Sarajevo
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Technical Co-sponsors
Bosnia and Herzegovina Section
Communications Society Chapter
Computer and Computational Intelligence
Joint Societies Chapter
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Partners
Platinum Partner
Golden Partner
Silver Partner
Bronze Partner
viii
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Contents
Preface
1
Welcome Message
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Conference Information
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Conference committees
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Organizing committee . . . . . . . . . . . . . . . . . . . 7
Program committee . . . . . . . . . . . . . . . . . . . . 8
Review committee . . . . . . . . . . . . . . . . . . . . . 10
Hosting City
Time zone . . . . . . . . . . . . . .
Climate . . . . . . . . . . . . . . .
Population . . . . . . . . . . . . .
Important phone numbers . . . . .
Electricity . . . . . . . . . . . . . .
Water Supply . . . . . . . . . . . .
Currency . . . . . . . . . . . . . .
Public Transport . . . . . . . . . .
Taxis . . . . . . . . . . . . . . . . .
How to get to BIHTEL 2012 Venue
Where to shop . . . . . . . . . . .
Souvenirs . . . . . . . . . . .
Shopping Centers . . . . . . .
Useful Websites . . . . . . . . . . .
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Accomodation
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Locations
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Conference Program
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Social Events . . . . . . . . . . . . . . . . . . . . . . . . 23
Registration . . . . . . . . . . . . . . . . . . . . . . . . . 23
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BIHTEL 2012 at a Glance . . . . . .
Sessions on Thursday, October 25th
Sessions on Friday, October 26th . .
Sessions on Saturday, October 27th .
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Book of Abstracts
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Keynotes
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Session 1
Wireless and Radio Communications and Networking
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Session 2
Signal Processing for Communications I
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Session 3
Next-Generation Networks, Communication Software
Services and Multimedia Applications and IMS based
Architectures
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Session 4
Signal Processing for Communications II
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Session 5
Communication and Information Systems Security
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Session 6
Modeling, Simulation, Communication QoS and
Reliability
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Session 7
Communication Subsystems: Antennas, Power supply, Radio Techniques, Access Networks, Optical Networks and
Systems
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Session 8
Education in Communication Engineering
Author index
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Preface
IX International symposium on Telecommunications – BIHTEL
2012 will be held in Sarajevo, Bosnia and Herzegovina, during
October 25-27, 2012.
Being the ninth in a series of biennial symposiums, BIHTEL
2012 – IX International Symposium on Telecommunications, will
bring together researchers from academia and practitioners from
industry active in the field of Telecommunications to discuss current development and future perspectives in Telecommunications
technologies.
The explosive growth in telecom sector, coupled with rapid innovations is throwing up not merely technological but a whole lot
of management, regulatory and socio-economic challenges.
BIHTEL 2012 will provide a venue for Telecommunications engineering practitioners, researches and educators to exchange ideas
on recent research work, point out the directions for future research and seek collaboration opportunities on all aspects of Telecommunications technologies. Solicited topics include, but are
not limited to:
• Ad Hoc, Sensor and Cognitive Networks;
• Communication Theory;
• Communication and Information Systems Security;
• Communication Subsystems: Antennas, Power supply, Radio Techniques, Access Networks, Optical Networks and
Systems;
• Education in Communication Engineering;
• Future Internet Networks;
• Management in Communication Systems and Networks;
• Modeling, Simulation, Communication QoS and Reliability;
• Next-Generation Networks, Communication Software Ser1
vices and Multimedia Applications and IMS based Architectures;
• Signal Processing for Communications;
• Smart Grids;
• Wireless and Radio Communications and Networking.
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Welcome Message
It is our great pleasure to welcome you to the IX International
Symposium on Telecommunications - BIHTEL 2012. Welcome
to Sarajevo, welcome to Bosnia and Herzegovina.
The BIHTEL 2012 Symposium takes place in Sarajevo, from the
25th to the 27th of October 2012. BIHTEL 2012 is organized
by the Faculty of Electrical Engineering University of Sarajevo
in co-operation with BH Telecom, M:tel and other sponsors. We
are very proud that BIHTEL 2012 Symposium takes place under technical co-sponsorship of IEEE Region 8, IEEE Bosnia
and Herzegovina Section, IEEE Bosnia and Herzegovina Section
Communications Society Chapter and IEEE Bosnia and Herzegovina Section Computer and Computational Intelligence Joint
Societies Chapter.
The BIHTEL 2012 is held in Sarajevo, a beautiful city with long
and sometimes troubled history. It was site of the assassination
that sparked World War I, while seventy years later it becomes
the host city of the 1984 Winter Olympics. Today Sarajevo is recovering and adjusting to a post-war reality, and is major center
of culture and economic development in Bosnia and Herzegovina. The travel guide series Lonely Planet has named Sarajevo
as the 43th best city in the world, and in December 2009 listed
Sarajevo as one of the top ten cities to visit in 2010. Once when
you visit Sarajevo, it becomes the city you yearn for, the city you
wish to return to. The Technical Program of this year BIHTEL
Symposium is divided into 8 sessions that cover 7 research topics. After the reviewing process, Review Committee has selected
45 submitted papers for oral presentation. These research papers were written by 121 authors. Participants come from the 19
countries. This year two special sessions are organized: ”IPv6Implementation issues” and ”Microsoft-Cloud Experiences”. The
International Programme Committee also invites several outstanding experts as keynote speakers to present the state of-theart in different research fields. This year we are proud to have
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three keynote talks: Professor Branka Zovko-Cihlar, Department
of Wireless Communications, Faculty of Electrical Engineering
and Computing, University of Zagreb will give a plenary talk
”Technological Advances in the Future Terrestrial Broadcasting”,
Proffesor Gregor Rozinaj, Department for Telecommunications,
Slovak University of Technology from Bratislava will give a plenary talk ”HBB Eurpean TV Standard for the Future” and Professor Josef Borcsok, Head of Computer Architecture and Systems Programming University of Kassel will give a plenary talk
”Methodes and Problems to value Parameters for high critical
systems”. We are most grateful to them for coming on BIHTEL
2012 Symposium. We will do our best to make you feel welcomed
and hopefully our conference will have a great success.
Narcis Behlilović and Branka Zovko-Cihlar
BIHTEL 2012 General Co-Chairs
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Conference Information
Conference committees
Organizing committee
Conference Chairs
Narcis Behlilovic
Bosnia and Herzegovina
Branka Zovko-Cihlar
University of Zagreb
Croatia
Technical Program Co-Chairs
Mesud Hadzialic
Samim Konjicija
Sasa Mrdovic
Conference Treasurer
Irfan Turkovic
Local Arrangements Chair and Conference Administrator
Elma Avdic
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Program committee
Narcis Behlilovic
Janez Bester
Mladen Kos
Nedzad Residbegovic
Huseyin Abut
Branko Dokic
Ralf Lehnert
Adnan Salihbegovic
Ignac Lovrek
Vladimir Lipovac
Mislav Grgic
Melita Ahic-Dokic
Sonja Grgic
Sasa Mrdovic
Branka Zovko-Cihlar
Mesud Hadzialic
Nikola Rozic
Steven McLaughlin
Branislava Perunicic
Vera Markovic
Nijaz Hadzimejlic
Nasuf Hadziahmetovic
Selma Rizvic
Ivo Kostic
Emina Soljanin
Samim Konjicija
Asim Smailagic
Amra Agic
Ilija Stevanovic
Hamdo Katica
Markus Rupp
Tarik Carsimamovic
Himzo Bajric
Enisa Brka
Gregor Rozinaj
Aura Conci
Zeljko Jungic
Alija Muharemovic
Sead Kreso
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Slovenia
Croatia
United States of America
Germany
Croatia
Croatia
Croatia
Croatia
Croatia
Serbia
Montenegro
Austria
Slovakia
Brazil
Stamatis Voliotis
Angel Sanchez
Panos Liatsis
Mirko Skrbic
Abdulah Aksamovic
Fikret Kasumagic
Paul Dan Cristea
Hojjat Adeli
Kemo Sokolija
Dzemal Kolonic
Greece
Spain
United Kingdom
Romania
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Review committee
Mesud Hadzialic
Muhammad Naufal Mansor
Markus Rupp
Mugdim Bublin
Darko Huljenic
Jasmina Barakovic-Husic
Darijo Raca
Nijaz Hadzimejlic
Thomas Zemen
Mirza Milisic
Enio Kaljic
Alvin Abdagic
Adnan Salihbegovic
Narcis Behlilovic
Enisa Brka
Pamela Begovic
Bakir Lacevic
Adnan Tahirovic
Angel Sanchez
Vladimir Lipovac
Mirza Hamza
Dusanka Boskovic
Stamatis Voliotis
Kenan Suruliz
Leni Matos
Mirko Skrbic
Goran Djukanovic
Moamer Hasanovic
Abdulah Aksamovic
Fazlul Haque
Hans Dieter Wacker
Lejla Rovcanin
Niklas Blum
Joao Paulo Carmo
Joao Marcos Meirelles da Silva
Dzenana Donko
Zdenka Babic
Adnan Huremovic
Mirza Varatanovic
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Bosnia and
Malaysia
Austria
Austria
Croatia
Bosnia and
Bosnia and
Bosnia and
Austria
Bosnia and
Bosnia and
Bosnia and
Bosnia and
Bosnia and
Bosnia and
Bosnia and
Bosnia and
Bosnia and
Spain
Bosnia and
Bosnia and
Bosnia and
Greece
Bosnia and
Brazil
Bosnia and
Bosnia and
Bosnia and
Bosnia and
Bangladesh
Germany
Ireland
Germany
Portugal
Brazil
Bosnia and
Bosnia and
Bosnia and
Bosnia and
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Herzegovina
Samir Ribic
Samim Konjicija
Jasmin Velagic
Samir Omanovic
Zikrija Avdagic
Sasa Mrdovic
Novica Nosovic
Emir Sokic
Haris Supic
Nerma Secic-Haracic
Kenneth Joachim Llanto
Almir Karabegovic
Iosif Androulidakis
Vera Markovic
Miroslav Voznak
Mahdi Aiash
Kresimir Fertalj
Melita Ahic-Dokic
Kemal Hajdarevic
Haris Memic
Mirza Ponjavic
Ivo Kostic
Tarik Carsimamovic
Jasmin Musovic
Una Benllic
Kemo Sokolija
Nihad Borovina
Emir Turajlic
Edvin Skaljo
Pavel Laskov
Hasnija Samic
Nasuf Hadziahmetovic
Irma Sokolovic
Zeljko Juric
Teo Eterovic
Amela Muratovic-Ribic
Wing Ng
Koviljka Stankovic
Salih Carsimamovic
Philippines
Greece
Serbia
Czech Republic
United Kingdom
Croatia
Montenegro
France
Germany
China
Serbia
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Hosting City
Welcome to Bosnia and Herzegovina and Sarajevo that preserve
long trails of civilizations throughout millenniums. Great cultures and religions of South and North, Western and Eastern
Christianity, Islam and Judaism but also great empires of European history have met and joint here.
Capital of Bosnia and Herzegovina, Sarajevo is the largest city
and country’s administrative, economic, cultural, university and
sport center. The City of Sarajevo is comprised of four Municipalities: Stari Grad, Centar, Novo Sarajevo and Novi Grad.
Situated in the area called Sarajevo Field, the town is surrounded
by Olympic mountains – Jahorina, Bjelašnica, Igman, Treskavica
and Trebević. River Miljacka flows through the city.
Sarajevo is national cultural capital with numerous International
festivals taking place every year (Sarajevo Film Festival, MESS
International Theater Festival, International “Sarajevo Winter”
Festival, Jazz Festival, Baščaršija Nights). The city is famous for
its traditional religious diversity, with adherents of Islam, Christian Orthodoxy, Catholicism and Judaism coexisting there for
centuries. Due to this long and rich history of religious diversity
and coexistence Sarajevo has often been called the ”Jerusalem of
Europe”.
The area that Sarajevo occupies has been continuously inhabited
since the Prehistoric period. It becomes a city with arrivals of
the Ottomans in the 15th century, and a capital of independent
BiH in 1992. Sarajevo has always connected East and the West
thus creating a unique blend of history, culture and heritage.
The modern city arose as an Ottoman stronghold in the 15th
century. Sarajevo has attracted international attention several
times throughout its history: In 1914 it was the site of the assassination that sparked World War I, while seventy years later
it became the host city of the 1984 Winter Olympics. More recently, Sarajevo underwent the longest siege in modern military
history during the Bosnian War.
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Today the city is recovering and adjusting to a post-war reality,
as a major center of culture and economic development in Bosnia
and Herzegovina. Sarajevo was also the first city in Europe and
the second city in the world to have a full-time operational electric tram network running through the city, the first being San
Francisco. Lonely Planet has named Sarajevo as the 43rd best
city in the world and in December 2009 listed Sarajevo as one of
the top ten cities to visit in 2010.
Sarajevo is located near the geometric center of the triangularshaped Bosnia- Herzegovina and within the historical region of
Bosnia proper. The Sarajevo valley once formed a vast expanse
of greenery, but gave way to urban expansion and development
in the post-World War II era. The city is surrounded by heavily
forested hills and big mountains. The highest of the surrounding peaks is 2,088 meters. On average, Sarajevo is situated 500
meters above sea level. The city itself has its fair share of hilly
terrain, as evidenced by the many steeply inclined streets and
residences seemingly perched on the hillsides.
The Miljacka river is one of the city’s chief geographic features. It
flows through the city from the east to the west where eventually
meets up with the Bosna river. The source of Miljacka several
kilometers to the east of Sarajevo and the Bosna’s source, Vrelo
Bosne near Ilidža (west Sarajevo), are notable natural landmarks
and popular destinations for citizens of Sarajevo and tourists.
Time zone
CET - Central European Time (Europe), GMT +01:00
Climate
Medium continental climate with average temperatures:
Summer: 19,1 ◦ C
Winter: –1,3 ◦ C
Annual: 9,5 ◦ C
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Population
The city of Sarajevo in (the area of) four municipalities (Old City,
Center, New City and New Sarajevo) has 297,416 residents.
Area: 141,5 km2
Important phone numbers
Police: 122
Firefighters: 123
First Aid: 124
Sarajevo Taxi: 1515
Airport: +387 33 289 100
Electricity
The electric supply is 220V with 50Hz frequency.
Water Supply
It is safe to drink tap water in Sarajevo.
Currency
Currency in BiH is Convertible Mark. The international abbreviation for currency is BAM, while KM is used locally (1,95 KM
= 1 Euro). You can exchange your currency in any bank or post
office. Banks are generally open from 08:00 to 18:00 on working
days, and from 09:00 to 13:00 on Saturdays. Main post office is
open from 07:00 to 20:00 from Monday to Saturday.
Public Transport
Sarajevo is well connected with a network of trams, trolley-buses,
buses and minibuses. The one-way ticket for an inner-city zone is
1,6 KM if you purchase it in a kiosk and 1,8 KM if you purchase
it with a driver. The ticked must be punched as soon as you enter
the vehicle. Failure to do so will result in a fine, on the spot. The
bus line connecting airport with baščaršija runs several times per
day and it costs 6 km (3 Euros) one way.
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Taxis
Sarajevo has one of the cheapest taxi services in Europe. Several
private taxi companies operate in the city 24 hours a day. For
example, taking a taxi from Sarajevo Airport to the city centre
will cost between 17 and 20 KM. All vehicles use the taxi meter.
The driver will issue the receipt upon a request.
How to get to BIHTEL 2012 Venue
The taxi from the Sarajevo Airport (SJJ Sarajevo Intl.) should
cost approximately 7 EUR
Where to shop
Souvenirs
To pick up authentic souvenirs, head to Baščaršija, the city’s
Turkish quarter. For centuries, Baščaršija was the city’s center
of trade and craftsman. During its golden period, it boasted 12
000 various shops selling products and services of 80 different
craftsmen and tradesmen. You can still find Baščaršija’s shops
filled with souvenirs, traditional household items, silver and gold
jewelry. Baščaršija’s most popular street is Kazandžiluk (Coppersmith Street), where you can find superbly created engraved
copper products: džezve (coffee pots), fildžani (cofee cups), ibrici (copper water dish). The city’s jewelry makers were well
known throughout Ottoman Empire for their particular designs.
Some of the unique jewelry items are beautifully crafted belenzuci (thick wrist bracelets), rings, necklaces. Jewelry makers (silver and gold smiths) are mostly located on Gazi Husrev-begova
Street (Zlatarska or Goldsmiths’ Street). While in Baščaršija you
can also visit the Gazi Husrev Bey’s Bezistan (covered bazaar)
which was built between 1537 and 1555.
Shopping Centers
Sarajevo is increasingly becoming an interesting shopping destination. Modern boutiques and fashion shops, as well as those
featuring designs of local designers, can be found along Ferhadija
and Titova Street. We recommend a visit to BBI Center, located
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in the city center, where various shops selling apparel, fashion
accessories and household items are found. Importanne Center,
located near the Wilson’s Walkway and Historical Museum of
BiH, is perfect for combining shopping with quick bites. There
is also the recently opened Alta on Marijin Dvor.
Useful Websites
Sarajevo International airport:
http://www.sarajevo-airport.ba
Tourism association of Sarajevo:
http://www.sarajevo-tourism.com/eng/default.wbsp
Official Web of Sarajevo:
http://www.sarajevo.ba
City Tours:
http://www.sarajevofunkytours.com
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Accomodation
Bristol Hotel
Fra Filipa Lastrica 2
71000 Sarajevo
Tel: +387 33 705 000
Fax: +387 33 705 001
E-mail: info@bristolsarajevo.com
Website: http://bristol.shazahotels.com
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Hotel Bristol
5 Parliament
Faculty of Electrical Engineering Sarajevo 6 Impportane Shopping Center
National Museum
7 Alta Shopping Center
Historical Museum
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Locations
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BIHTEL
2012
Airport
City
Centre
Conference Program
Social Events
Thursday, October 25, 2012
Welcome reception will be held in Hotel Bristol (Conference venue)
from 10:30 to 11:30 h.
Friday, October 26, 2012
Conference Banquet from 20:00 to 23:30 h, at Sarajevo Brewery
House. Additional tickets (Fee: 40 EUR) for the banquet can be
found at the Registration desk during registration.
Transportation from Hotel Bristol will be organized by bus at
19:30 h.
Tourist events
During the Conference we will organize Old town tour (SarajevoEuropean Jerusalem), on Saturday, October 27, 2012.
Registration
Thursday, 25th October
Friday, 26th October
Saturday, 27th October
08:00 – 17:30 h
08:00 – 16:30 h
08:00 – 11:00 h
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BIHTEL 2012 at a Glance
Thursday, October 25th
Time
10:00 - 11:00
10:00 - 10:15
10:20 - 10:35
10:40 - 10:55
11:00 - 12:00
12:00 - 12:30
12:30 - 13:00
13:00 - 13:30
13:30 - 14:00
14:00 - 15:30
15:30 - 16:30
16:30 - 17:30
17:30 - 19:00
Room - Banjaluka
Opening Ceremony
Prof. dr. Narcis Behlilovic, General Co-Chair
Sponsor: BH Telecom
Sponsor: mTel
Welcome Cocktail
IEEE Bosnia and Herzegovina Section
Prof. Gregor Rozinaj
HBB – European TV Standard for the Future
Prof. Branka Zovko-Cihlar
Technological Advances in the Future Terrestrial
Broadcasting
Prof. Josef Borcsok
Methods and Problems to value Parameters for
high critical systems
Coffee break
Session 1:
Wireless & Radio Communications & Networking
Lunch Break
Tutorial T1:
IPv6 – Implementation Issues
Session 2:
Friday, October 26th
Time
09:00 - 10:30
10:30 - 11:00
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Room - Banjaluka
Session 3:
Next-Generation Networks, Communication
Software Services and Multimedia Applications
& IMS based Architectures
Coffee Break
11:00 - 12:30
12:30 - 13:30
13:30 - 14:30
14:30 - 15:00
15:00 - 16:30
16:30 - 18:00
20:00 - 23:30
Session 4:
Lunch Break
Tutorial T2:
Microsoft – Cloud experiences
Coffee Break
Session 5:
Session 6:
Modeling, Simulation, Communication QoS &
Reliability
Banquet
Saturday, October 27th
Time
09:00 - 10:30
10:30 - 11:00
11:00 - 11:45
11:45 - 12:30
13:00 - 14:00
14:30 - 17:00
Room - Banjaluka
Session 7:
Communication Subsystems: Antennas, Power
supply, Radio Techniques, Access Networks, Optical Networks and Systems
Coffee Break
Session 8:
STUDENT SESSION
Lunch Break
Sarajevo Old Town Tour
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Sessions on Thursday, October 25th
Wireless & Radio Communications &
Networking
Session 1
Room
Banjaluka
Hour
14:00 – 15:30
Chairs Goran Djukanovic (Telekomunikacije RS, a.d., B&H)
Enisa Brka (Faculty of Electrical Engineering Sarajevo,
B&H)
A flexible FPGA-based communication unit used in a
wireless system for Astroparticle physics experiments
Yue Zhu (Karlsruhe Institute of Technology, Institute for
Data Processing and Electronics, Germany), Matthias Kleifges
(Karlsruhe Institute of Technology, Institute for Data Processing and Electronics, Germany), Fridtjof Feldbusch (Karlsruhe
Institute of Technology, Institute for Data Processing and Electronics, Germany)
FPGA-Based Wireless Sensor Network for SafetyRelated Cognitive Systems
Ali Hayek (University of Kassel, Germany), Yusuf Suna (University of Kassel, Germany), Josef Boercsoek (University of
Kassel, Germany)
A Threshold-Based Opportunistic MAC Protocol for
MIMO Wireless Sensor Networks
Hakki Soy (Karamanoglu Mehmeybey University, Turkey),
Ozgur Ozdemir (Qatar University, Qatar), Mehmet Bayrak
(Mevlana University, Turkey), Ridha Hamila (Qatar University, Qatar), Naofal Al-Dhahir (The University of Texas at
Dallas, USA)
Macrocell Capacity and Coverage Planning for UMTS
in GSM frequency Band
Goran Djukanovic (Telekomunikacije RS, a.d., B&H), Dalibor
Ilic (Telekomunikacije RS, a.d., B&H)
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Digital Modulation Classification through Time and
Frequency Domain Features using Neural Networks
Mohamed Abdelraheem (Virginia Tech – Middle East and
North Africa, Alexandria University, Egypt), Mahi Helmi (Virginia Tech – Middle East and North Africa, Alexandria University, Egypt)
The implications of Service Virtualisation on the routing procedure in Wireless Sensor Networks
Theodore Zahariadis (The Technological Education Institution
(TEI) of Chalkida, Greece), Lambros Sarakis (The Technological Education Institution (TEI) of Chalkida, Greece), Helen Leligou (The Technological Education Institution (TEI) of
Chalkida, Greece)
System-level gains introduced to 3G UMTS mobile
networks by multi-antenna techniques
Mesud Hadzialic (University of Sarajevo, Faculty of Electrical Engineering, B&H), Kenan Turbic (University of Sarajevo,
Faculty of Electrical Engineering, B&H)
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Session 2
Room
Banjaluka
Hour
17:30 - 19:00
Chairs Zdenka Babic (University of Banja Luka, B&H)
Michal Simko (Vienna University of Technology, Austria)
Method for processing and classification of laser beam
images using PLD
Mycola Petrovskyi (State economy and technology university
of transport, Ukraine), Leonid Tymchenko (State economy
and technology university of transport, Ukraine), Maryna Semenyuk (State economy and technology university of transport,
Ukraine), Natalia Kokryatskaya (State economy and technology university of transport, Ukraine), Yuriy Kutaev (KIA Systems, Russian Federation)
Recursive Gauss-Seidel Algorithm for Adaptive Channel Equalizer
Metin Hatun (Uludag University, Turkey), Osman Hilmi Kocal
(Yalova University, Turkey)
Inter-Carrier Interference Mitigation by Means of Precoding
Michal Simko (Vienna University of Technology, Austria), Qi
Wang (Vienna University of Technology, Austria), Paulo Diniz
(Universidade Federal do Rio de Janeiro, Brazil), Markus Rupp
(Vienna University of Technology, Austria)
A novel adaptive filter algorithm
Emir Turajlic (Sarajevo School of Science and Technology,
B&H), Olja Bozanovic (Sarajevo School of Science and Technology, B&H)
28
A Novel Subspace-based joint TDOA and FDOA estimation using chirp signals for mobile multipath environment
Ying-chun Li (Hanyang University, Korea), Daegun Oh
(Hanyang University, Republic of Korea), Jae-hwan Kim
(Hanyang University, Republic of Korea), Jong-Wha Chong
(Hanyang University, Republic of Korea), Jeong-Dae Kim
(EDA ellitech Co., Ltd., Republic of Korea)
Distributed Spectrum Management for DSL Networks
Goran Popovic (Telekomunikacije RS, AD Banja Luka, B&H),
Goran Djukanovic (Telekomunikacije RS, AD Banja Luka,
B&H)
29
Sessions on Friday, October 26th
Next Generation Networks,
Communication Software Services and
Multimedia Applications & IMS Based
Architectures
Session 3
Room
Banjaluka
Hour
09:00 – 10:30
Chairs Jasmina Barakovic-Husic (BH Telecom, B&H)
Samim Konjicija (Faculty of Electrical Engineering Sarajevo, B&H)
Mobile account TopUp over m-commerce platform in
the IMS environment
Asaf Sarajlic (BH Telecom, B&H), Damir Omerasevic (Printec,
B&H)
IPv4/IPv6 Transition Using DNS64/NAT64: Deployment Issues
IPv4/IPv6 Transition Using DNS64/NAT64: Deployment Issues Enis Hodzic ( BH Telecom, B&H), Sasa Mrdovic (University of Sarajevo, Faculty of Electrical Engineering, B&H)
SIP Performance Metrics for IMS-based Telephony
Service
Jasmina Barakovic (BH Telecom/University of Sarajevo, Faculty of Electrical Engineering, B&H), Emina Nekovic (University of Sarajevo, Faculty of Electrical Engineering, B&H),
Himzo Bajric (BH Telecom, B&H), Sabina Barakovic (Ministry
of Security of B&H)
30
Cloud based service for M2M Communication
Vanesa Cackovic (Ericsson Nikola Tesla, Croatia), Zeljko
Popovic (Ericsson Nikola Tesla, Croatia)
Model and Implementation of Mobile Interactive
Guide
Damir Bolic (University of Sarajevo, Faculty of Electrical Engineering, B&H), Dzenana Donko (University of Sarajevo, Faculty of Electrical Engineering, B&H)
Overview of IMS Application Layer Interaction Management
Mirza Varatanovic (University of Sarajevo, Faculty of Electrical Engineering, B&H), Nerma Secic – Haracic (University
of Sarajevo, Faculty of Electrical Engineering, B&H), Mirko
Skrbic (University of Sarajevo, Faculty of Electrical Engineering, B&H), Mesud Hadzialic (University of Sarajevo, Faculty of
Electrical Engineering, B&H), Elvedin Grabovica (University
of Sarajevo, B&H)
31
Session 4
Room
Banjaluka
Hour
11:00 – 12:30
Chairs Gregor Rozinaj (Faculty of Electrical Engineering and
Information Technology, Slovakia)
Emir Turajlic (Sarajevo School of Science and Technology, B&H)
Analysis of Off-line Handwritten Text Samples of Different Gender using Shape Descriptors
Emir Sokic (University of Sarajevo, Faculty of Electrical Engineering, B&H), Almir Salihbegovic (University of Sarajevo,
Faculty of Electrical Engineering, B&H), Melita Ahic-Djokic
(University of Sarajevo, Faculty of Electrical Engineering,
B&H)
A zero-attracting variable step-size LMS algorithm for
sparse system identification
Mohammad Shukri Salman (Mevlana University, Turkey), Mohammad N.S. Jahromi (Eastern Mediterranean University,
Turkey), Aykut Hocanin (Eastern Mediterranean University,
Turkey), Osman Kukrer (Eastern Mediterranean University,
Turkey)
ZCPA features for speech recognition
Juraj Kacur (Faculty of Electrical Engineering and Information
Technology, Slovakia), Mario Varga (Faculty of Electrical Engineering and Information Technology, Slovakia), Gregor Rozinaj
(Faculty of Electrical Engineering and Information Technology,
Slovakia)
Framework for real time h.264 video transmission over
wireless channels
Slavche Pejoski (Faculty of Electrical Engineering and Information Technologies, University Cyril and Methodius, Macedonia), Venceslav Kafedziski (Faculty of Electrical Engineering
and Information Technologies, University Cyril and Methodius,
Macedonia)
32
Issue of resource usage in content-based image retrieval
algorithms
Vedran Ljubovic (University of Sarajevo, Faculty of Electrical
Engineering, B&H), Haris Supic (University of Sarajevo, Faculty of Electrical Engineering, B&H)
Optimized Group Delay Based Estimation of Glottal
Closure Instants
Emir Turajlic (Sarajevo School of Science and Technology,
B&H), Olja Bozanovic (Sarajevo School of Science and Technology, B&H)
33
Communication and Information Systems
Security
Session 5
Room
Banjaluka
Hour
15:00 – 16:30
Chairs Nikolaos Bardis (Department of Mathematics and Engineering Science, Univ. Military Education - Hellenic
Army Academy, Greece)
Sasa Mrdovic (Faculty of Electrical Engineering Sarajevo, B&H)
The young and the restless of mobile phone security
(How security awareness and feeling lessen with age in
students)
Iosif Androulidakis (Jožef Stefan International Postgraduate
School, Slovenia), Gorazd Kandus (Jožef Stefan International
Postgraduate School, Slovenia), Anel Tanovic (BH Telecom,
B&H)
Modelling and Analysis of the TLS protocol using
Casper and FDR
Kanita Karaduzovic-Hadziabdic (International University of
Sarajevo, B&H)
SIP Server Security with TLS: Relative Performance
Evaluation
Merima Kulin (University of Sarajevo, Faculty of Electrical Engineering, B&H), Tarik Kazaz (University of Sarajevo, Faculty
of Electrical Engineering, B&H), Sasa Mrdovic (University of
Sarajevo, Faculty of Electrical Engineering, B&H)
Fast Implementation zero knowledge identification
schemes using the Galois fields arithmetic
Nikolaos Bardis (Department of Mathematics and Engineering
Science, Univ. Military Education - Hellenic Army Academy,
Greece),Oleksandr Markovskyi (Department of Computer Engineering, National Technical University of Ukraine, (Polytechnic Inst. of Kiev), Ukraine)
34
A new approach to relatively short message steganography
Angel Sanchez (University Rey Juan Carlos, Spain), Aura
Conci (Universidade Federal Fluminese, Brazil), Ensar
Zeljkovic (University of Sarajevo, Faculty of Electrical Engineering, B&H), Narcis Behlilovic (University of Sarajevo, Faculty of Electrical Engineering, B&H), Vedran Karahodzic (University of Sarajevo, Faculty of Electrical Engineering, B&H)
35
Modelling, Simulation, Communication
QoS & Realiability
Session 6
Room
Banjaluka
Hour
16:30 – 18:00
Chairs Adnan Salihbegovic (Faculty of Electrical Engineering
Sarajevo, B&H)
Ossmane Krini (University of Kassel, Germany)
A new approach to detection of noise-distorted signals
based on the method of S-preparation
Svitlana Nakonechna (State economic technological University
of transport, Ukraine), Mycola Petrovskyi (State economic
technological University of transport, Ukraine), Leonid Timchenko (State economic technological University of transport,
Ukraine), Yuriy Kutaev (Design Bureau ”ZAO KIA system”,
Russian Federation), Nataliya Kokryatskaya (State economic
technological University of transport, Ukraine)
Degradable on-Chip Safety Controller with Intra-Chip
Communication for Steer-By-Wire Systems
Josef Börcsök (University of Kassel, Germany), Evzudin
Ugljesa (University of Kassel, Germany), Ali Hayek (University of Kassel, Germany), Adnan Salihbegovic (University of
An approach to Integration of Contextual Information
in Case-based Recommender Systems
Haris Supic (University of Sarajevo, Faculty of Electrical Engineering, B&H)
36
Attempt of unbiased comparison of GPU and CPU
performance in common scientific computing
Adnan Hidic (University of Sarajevo, Faculty of Electrical
Engineering, B&H), Damir Zubanovic (University of Sarajevo, Faculty of Electrical Engineering, B&H), Adnan Hajdarevic (University of Sarajevo, Faculty of Electrical Engineering,
B&H), Alvin Huseinovic (University of Sarajevo, Faculty of
Electrical Engineering, B&H), Novica Nosovic (University of
Hybrid approach in design of GA implementation for
MapReduce
Amer Zec (BH Telecom, B&H), Samim Konjicija (University
of Sarajevo, Faculty of Electrical Engineering, B&H), Novica
Nosovic (University of Sarajevo, Faculty of Electrical Engineering, B&H)
New scientific contributions to the prediction of the
Reliability of Critical Systems which based on Imperfect Debugging method and the increase of Quality of
Service
Ossmane Krini (University of Kassel, Germany), Josef Börcsök
(University of Kassel, Germany)
37
Sessions on Saturday, October 27th
Comunication Subsystems: Antennas,
Power supply, Radio Techniques, Access
Networks, Optical Networks and Systems
Session 7
Room
Banjaluka
Hour
09:00 – 10:30
Chairs Mesud Hadzialic (Faculty of Electrical Engineering Sarajevo, B&H)
Tarik Carsimamovic (Faculty of Electrical Engineering
Sarajevo, B&H)
Survey and analysis of 0.18 um CMOS integrated antennas on 5.8 GHz for RFID systems
Mikhail Suslov (National Research University of Electronic
Technology (MIET), Russian Federation), (Aleksandr Timoshenko (National Research University of Electronic Technology
(MIET), Russian Federation), Ksenia Lomovskaya (National
Research University of Electronic Technology (MIET), Russian
Federation)
Performance Improvement of High Speed SpectrumSliced Dense WDM-PON System
Vjaceslavs Bobrovs (Riga Technical University, Institute of
Telecommunications, Latvia), Sandis Spolitis (Riga Technical University, Institute of Telecommunications, Latvia),
Girts Ivanovs (Riga Technical University, Institute of Telecommunications, Latvia), Peteris Gavars (Riga Technical University, Institute of Telecommunications, Latvia)
38
Evaluation of the Maximum Permissible Transmission
Distance for the Mixed-HDWDM Systems
Vjaceslavs Bobrovs (Riga Technical University, Institute of
Telecommunications, Latvia), Aleksejs Udalcovs (Riga Technical University, Institute of Telecommunications, Latvia),
Rolands Parts (Riga Technical University, Institute of Telecommunications, Latvia), Ilja Trifonovs (Riga Technical University, Institute of Telecommunications, Latvia)
Modelling optical network components: a networksimulator based approach
Vedran Miletic (University of Rijeka Department of Informatics, Croatia), Branko Mikac (University of Zagreb, Faculty
of Electrical Engineering and Computing, Croatia), Matija
Dzanko (University of Zagreb Faculty of Electrical Engineering and Computing, Croatia)
Effect of Air Holes Deformation on the Dispersion Properties in Hexagonal-lattice Photonic Crystal
Fibers
Yashar Esfahani Monfared (Shahre-rey Branch, Islamic Azad
University, Iran), Ali Reza Maleki Javan (Shahre-rey Branch,
Islamic Azad University)
Impulse Noise Influence on Communication System in
High-Voltage Substation
Zijad Bajramovic (University of Sarajevo, Faculty of Electrical Engineering, B&H), Irfan Turkovic (University of Sarajevo, Faculty of Electrical Engineering, B&H), Aleksandar Mastilovic (University of Sarajevo, Faculty of Electrical Engineering, B&H), Adnan Mujezinovic (University of Sarajevo, Faculty
of Electrical Engineering, B&H)
39
Session 8
Room
Banjaluka
Hour
11:00 – 12:30
Chairs Dusanka Boskovic (Faculty of Electrical Engineering
Sarajevo, B&H)
Dalibor Dobrilovic (University of Novi Sad, Technical
Faculty ”Mihajlo Pupin”, Serbia)
New Proposed Structure for Communication Engineering Curriculum
Abdurrazag Ali Aburas (International University of Sarajevo,
B&H), Indira Muhic (International University of Sarajevo,
B&H), Indira Rustempasic (International University of Sarajevo, B&H), Busra Gheith Yildiz (International University of
Sarajevo, B&H)
The design guidelines for virtual network laboratories
Dalibor Dobrilovic (University of Novi Sad, Technical Faculty “Mihajlo Pupin”, Serbia), Vesna Jevtic (University of
Novi Sad, Technical Faculty “Mihajlo Pupin”, Serbia), Zeljko
Stojanov (University of Novi Sad, Technical Faculty “Mihajlo Pupin”, Serbia), Borislav Odadzic (University of Novi Sad,
Technical Faculty “Mihajlo Pupin”, Serbia)
Repository analysis tools in teaching software engineering
Vedran Ljubovic (University of Sarajevo, Faculty of Electrical
Engineering, Faculty of Electrical Engineering, B&H), Novica
Nosovic (University of Sarajevo, Faculty of Electrical Engineering, Faculty of Electrical Engineering, B&H)
STUDENT SESSION
40
Book of Abstracts
Keynotes
HBB - European TV Standard for the Future - Gregor Rozinaj
HBB - European TV Standard for the Future
Gregor Rozinaj
Slovak University of Technology, Faculty of Electrical Engineering and
Information Technology, Department of Telecommunications,
Slovakia
gregor.rozinaj@stuba.sk
Hybrid Broadcast Broadband TV or ”HbbTV”, is a major new
pan-European initiative aimed at harmonising the broadcast and
broadband delivery of entertainment to the end consumer through
connected TVs and set-top boxes. So far, Hybrid Broadcast Internet applications have mostly linked Internet and broadcast by
offering on-demand content in addition to current linear broadcast services and by replacing old-fashioned Teletext. However,
many more services are on the horizon, and the market of hybrid and connected TV attracts attention from all stakeholders
in the media value chain. The challenge is to take hybrid service to a new level where the wide range of expectations of user
groups is met. HBB-NEXT will lay the foundations for advanced
hybrid multi-user services by building upon existing standards
and by enhancing them. The new research project FP7 ”HBBNext” is devoted to the new concept and functionality of the
HbbTv standard. The project seeks to facilitate the convergence
of the broadcast and Internet world by researching user-centric
technologies for enriching the TV-viewing experience with social
networking, multiple device access, grouptailored content recommendations, as well as the seamless mixing of broadcast content,
of complementary Internet content and of usergenerated content.
43
All these services will be based on strong and user-friendly multimodal interface. The project will deliver a set of enablers to allow
device-independent applications that can syndicate content from
multiple sources, supporting real-time content composition and
content distribution for users in geographically distinct areas.
Sophisticated technology will be developed for the easy use of
content, e.g. advanced synchronisation methods for service components delivered across the Internet and broadcast networks.
Data security and protection of user privacy will be an integral
part of HBB-NEXT - but in a way that is transparent to the
end-user.
44
Methods and Problems to value Parameters for high critical
systems - Josef Börcsök
Methods and Problems to value Parameters for
high critical systems
Josef Börcsök
University of Kassel, Germany
j.boercsoek@uni-kassel.de
Modern technical systems, which control safety-critical processes,
are getting more and more complex. The reasons are, on one
hand, that the requirements which the systems shall fulfil multiply meanwhile the systems themselves are getting smaller. On
the other hand it is necessary to provide more technically, more
performing and safer systems to keep being globally competitive.
A safety-related system that fulfils functional safety requirements
reduces the risk for equipment under control, EUC. The danger
for people, environment or machine via a EUC will be appraised
through a risk analysis, e.g. with the help of different methods like fault tree analysis, reliability block diagram or a Markov
analysis. How small the residual risk shall be will be defined,
on the one hand, by the organization itself - at this point each
individual will ask himself whether he is ready to accept that
risk or not - and, on the other hand, will be influenced by the
production availability. A number of fundamental concepts exist
to achieve high reliability, high availability and high safety; one
could mention here the different safety redundancy architectures
(MooN, i. e., M out of N) combined with corresponding high
quality test procedures, i. e. additional diagnostic subsystems.
The hardware fault tolerance (HFT)and the safe failure fraction
(SFF) are generally used to evaluate the corresponding safety
systems. To quantitatively determine safety, IEC/EN 61508 Ed.
2 uses a risk- oriented, probabilistic approach that distinguishes,
45
depending on the demand of the safety function, between safety
systems with low demand - mainly used in the process industry
- and systems with high or continuous demand, often used with
vehicles in road or rail traffic or in the aircraft industry. The
standard IEC/EN 61508 Ed. 2 serves as generic standard for the
development of sensitive electrical, electronic and programmable
electronic systems. It is intended as basis for the development of
future application orientated standards. Furthermore, this standard supplies qualitative and quantitative criteria to evaluated
safety related systems, in order to apply it in safety critical applications. In order to have measurable parameters, the widely
used parameters ” mean time to failure” (MTTF) and ”probability of failure on demand” (PFD) were defined. The PFD
characterises the quality of a faultless system. The smaller the
value is the better the safety of the system. Another standard,
which is used since years, is ISA-TR84.0.02. In this standard a
safety calculation can be performed without using ”Mean Time
To Repair” (MTTR) and common cause failure. Since the introduction of the standard IEC/EN 61508 Ed. 2 a lot of discussion
concerning the PFD-number appears in the industry. The reason
for that discussion is the way of calculation this numbers. This
contribution will compare both calculation-methods.
46
Technological Advances for the Future Terrestrial Broadcasting Branka Zovko-Cihlar
Technological Advances for the Future Terrestrial
Broadcasting
Branka Zovko-Cihlar
University of Zagreb, Faculty of Electrical Engineering and
Computing, Department of Radio communications and Microwave
Engineering, Croatia
branka.zovko@fer.hr
The process of future terrestrial digital video broadcasting started
with the evolution of broadcasting services, market developments
and the changing regulatory environment. A new era was opened
in digital terrestrial video transmission from June 2006 (GE-06
and RRC-06) with request to switch over from analog to digital technology in both broadcasting production and distribution.
In this paper we will analyze the present situation and development on the terrestrial broadcasting platforms, reduction of
the amount of available radio spectrum - ”digital dividend”, and
interest for using part of the spectrum for mobile services, especially LTE services.
47
48
Session 1
Wireless and Radio Communications and Networking
A Flexible FPGA-based Module for Wireless
Communications in Astroparticle Physics
Experiments
Yue Zhu, Matthias Kleifges, Fridtjof Feldbusch
Karlsruhe Institute of Technology, Institute for Data Processing and
Electronics, Germany
yue.zhu@kit.edu
TDMA-based wireless networks have been successfully operated
in cosmic ray experiments over many years. However, the current DSP-based approach cannot be scaled to the demands of
novel detection techniques. In this paper we present a design
based on FPGAs which realizes a domain-specific TDMA communication protocol. The system is flexible to be adapted to
different type of detector arrays and link condition by variable
network parameters. The implemented hardware, firmware and
the protocol allow a trade-off compromising between bandwidth
and robustness on a per-link basis. Results based on four recently
installed communication links at the Pierre Auger Observatory
experiment site in Argentina are discussed.
49
FPGA-Based Wireless Sensor Network for
Safety-Related Cognitive Systems
Ali Hayek, Yusuf Suna, Michael Schreiber, Josef Borcsok
ali.hayek@uni-kassel.de, j.boercsoek@uni-kassel.de
Wireless sensor networks for monitoring and steering industrial
systems have emerged as an important new application area for
wireless embedded technology in safety-related systems. Therefore several hardware platforms can be targeted. Due to their
flexibility and reconfigurability along with high performance and
power efficiency, modern Field Programmable Gate Arrays (FPGAs) are an excellent platform to realize such intelligent sensor
networks. On one hand, FPGAs can integrate embedded processors and on-chip memory into a single die and can be easily
configured to interface with a wide variety of popular communications protocols like SPI, UART and I2C, which are used for
sensor communication. On the other hand, the reconfigurability
of FPGAs supports the design of self-organizing computing systems, which are increasingly used in sensor applications. In this
paper an FPGA-based wireless smart sensor network that integrates acceleration sensors for increasing safety aspects in cognitive systems used for industrial communication is presented.
50
A Threshold-Based Opportunistic MAC Protocol
for MIMO Wireless Sensor Networks
Hakki Soy
Karamanoglu Mehmeybey University, T urkey
Ozgur Ozdemir
Qatar University, Qatar
Mehmet Bayrak
Mevlana University, T urkey
Ridha Hamila
Qatar University, Qatar
Naofal Al-Dhahir
The University of Texas at Dallas, U nitedStates
hakkisoy@gmail.com, ozgur@qu.edu.qa,
mbayrak@mevlana.edu.tr, hamila@qu.edu.qa,
aldhahir@utdallas.edu
In this paper, we consider a single hop wireless sensor network
where both the sensor nodes and the controller node have multiple antennas. We concentrate on single beam opportunistic communication and propose a threshold-based medium access control
(MAC) protocol which exploits multiuser diversity gain without
uplink feedback channel. Packet transfer from sensor nodes to
the controller node is initiated when channel quality of any node
exceeds the predefined channel gain threshold based on the effective signal to noise ratio (ESNR) measurements at the sensor
nodes through linear combining methods. To improve the system
performance, we derive the optimum threshold in order to decide
whether to transmit or not in a given time-slot. This optimization reduces the rate of collisions and therefore the energy that
is required to send data to the controller node. We present simulation results to demonstrate the effectiveness of the proposed
MAC protocol in terms of throughput and fairness. The obtained
results are also compared to round-robin scheme which provides
the highest short term fairness and equal resource allocation.
51
Macrocell Capacity and Coverage Planning for
UMTS in GSM frequency Band
Goran Djukanovic, Dalibor Ilic
Telekomunikacije RS, a.d., B&H
goran.djukanovic@mtel.ba, dalibor.ilic@mtel.ba
Implementing UMTS system in GSM frequency band has gain
a lot of attention in Europe in last few years. There are several reasons for this. Those includes better radio propagation
in lower frequency band, resulting in much lower price per bit
for operators. In remote, sparsely populated areas, operators
face cost-efficiency difficulties in providing UMTS at 2GHz range.
However, by implementing UMTS at 900 MHz range, significant
site number reduction can be achieved in comparing to 2GHz
band for the same coverage. Operators in BiH choose as well
to introduce UMTS900 technology in their mobile networks. On
that way global UMTS coverage can be provided very quickly
and efficiently. In UMTS, coverage and capacity are planed simultaneously, because traffic distribution, used services, and capacity requirements does have an impact to cell sizes. In this
paper aspect of using different service rate to planning is considered, including preliminary network plan for existing population
distribution and geotypes in BiH. UMTS900 network should be
planned very carefully and behavior of one cell in case of mixed
services scenario should be taken into account.
52
Digital Modulation Classification through Time and
Frequency Domain Features using Neural Networks
Mohamed Abdelraheem, Mahi Helmi
Virginia Tech – Middle East and North Africa, Alexandria University,
Egypt
mohamed.abdelrehem@mena.vt.edu
Cognitive Radio (CR) networks has been presented in the last
decade as a solution to the problem of increasing congestion in
frequency spectrum, through opportunistic spectrum access techniques. One of the main components of Cognitive Radio receivers
is the Automatic Modulation Classification(AMC), in which the
CR can blindly identify the modulation scheme of a detected signal. AMC has several applications, including military, spectrum
surveillance and management, and commercial applications. In
this paper we propose an AMC based on two different Neural
Networks (NN) classifiers: Feed-Forward with Resilient BackPropagation NN and Probabilistic NN. NN classifiers take their
inputs as a feature vector from a Features extraction phase. Features selected for classification are the statistical features of the
received signal’s instantaneous amplitude, frequency and phase.
Simulations show that both NN classifiers can achieve over 80%
correct classification up to Signal-to-Noise Ratio (SNR) of 5dB,
and the probability of correct classification increases up to 99%
at a SNR of 15dB.
53
The implications of Service Virtualisation on the
routing procedure in Wireless Sensor Networks
Theodore Zahariadis, Lambros Sarakis, Helen Leligou, Antonios
Hatjiefremidis, Stamatis Voliotis
The Technological Education Institution (TEI) of Chalkida, Greece
Kyriakos Georgouleas
Hellenic Aerospace Industry, Greece
zahariad@teihal.gr, sarakis@teihal.gr, leligou@teihal.gr,
ahatzi@teihal.gr, svoliotis@teihal.g,
georgouleas.kiriakos@haicorp.com
The proliferation of Wireless Sensor Networks (WSNs) has driven
the design of Virtual Sensor Networks (VSNs) which decouple the
physical sensor deployment from the applications running on top
of it. In this concept, the Wireless Sensor Networks are no longer
deployed to support a specific service but are capable of collaborating among each other (even if they belong to different administrator domains or if they comprise of heterogeneous systems)
towards realizing new services and applications. The design and
development of VSNs are at the focus of the VITRO project and
it currently develops a reference architecture [1] to enable the realization of scalable, flexible, adaptive, energy-efficient and trustaware Virtual Sensor Network platforms. In this paper, we investigate the requirements that virtualization imposes on the routing
procedure of the involved WSNs. Given that the routing protocol and the adopted routing metric affects the achieved quality
of service performance, the support of different applications over
the same WSN infrastructure mandates a)traffic handling differentiation from the routing protocol and b)proper coordination of
the involved resource controller and VSN configuration management modules.
54
System-level gains introduced to 3G UMTS mobile
networks by multi-antenna techniques
Mesud Hadzialic, Kenan Turbic
University of Sarajevo, Faculty of Electrical Engineering, B&H
mhadzialic@etf.unsa.ba, kenan.turbic@etf.unsa.ba
In order to satisfy constantly increasing user demands, in process of transition towards LTE (Long Term Evolution) mobile
networks of 4th generation, for 3G UMTS networks potential
solution is exploitation of multi-antenna MIMO (Multiple Input Multiple Output) systems, which provide increase in both
capacity and reliability. This paper puts an effort to provide
a link between link-level and system-level gains introduced by
multi-antenna techniques in UMTS systems. Coverage, capacity
and achievable data rates are evaluated and presented for Alamouti scheme, TxAA and D-TxAA. Radio mobile planning tool
is used for illustration of coverage improvement achieved by implementation of several multi-antenna techniques. Considering
system-level gains, it is seen that implementation of MIMO techniques yields larger service area and/or increase in capacity and
available data rates maintaining the same bandwidth. Results
presented in this paper help making a clear picture of achievable
gains, employment costs and answering the question: Should mobile operators invest in upgrading their 3G networks with MIMO
techniques and is that investment justified, considering achievable improvements.
55
56
Session 2
Method for processing and classification of laser
beam images using PLD
Mycola Petrovskyi, Leonid Tymchenko, Maryna Semenyuk,
Natalia Kokryatskaya
State economy and technology university of transport, U kraine
Yuriy Kutaev
KIA Systems, Russian F ederation
nspsig@yandex.ru, timchen@list.ru, m.s.semenyuk@ukr.net,
kokriatskaia@rambler.ru, petr-rusinov@yandex.ru
This article discusses a problem of the laser beam dynamic image
processing as applied to the systems of data communication by a
laser beam. A method for calculation of the coordinates of this
image is proposed for solution of this problem. The practical
implementation of the method is presented on the basis of PLD.
57
Recursive Gauss-Seidel Algorithm for Adaptive
Channel Equalizer
Metin Hatun, Osman Hilmi Kocal
Uludag University, T urkey
Osman Hilmi Kocal
Yalova University, T urkey
metinh@uludag.edu.tr, osman.kocal@yalova.edu.tr
A recursive algorithm based on the use of Gauss-Seidel iterations is introduced to adjust the parameters of an adaptive channel equalizer discrete-time system. The presented algorithm is
termed the Recursive Gauss-Seidel (RGS) algorithm in literature
and is used to update the equalizer coefficients directly. The
proposed algorithm based on iterative matrix solution methods
is different from the algorithms based on gradient and matrix
inversion lemma methods. By using computer simulations, the
performance of the RGS algorithm, its convergence rate and computational complexity, is examined and compared with the widely
used adaptive least squares algorithms such as normalized least
mean square (NLMS) and recursive least square (RLS). It has
been observed that the new algorithm for channel equalizer has
advantages over NLMS and RLS algorithms including convergence rate and computational complexity, respectively.
58
Inter-Carrier Interference Mitigation by Means of
Precoding
Michal Simko, Qi Wang
Vienna University of Technology, Austria
Paulo Diniz
Universidade Federal do Rio de Janeiro, Brasil
Markus Rupp
Vienna University of Technology, Austria
msimko@nt.tuwien.ac.at, qwang@nt.tuwien.ac.at
In this work, we discuss the possibility of using precoding as
means to mitigate Inter Carrier Interference (ICI) caused by temporal channel variations in Orthogonal Frequency Division Multiplexing (OFDM) systems. Many different precoding schemes
have been introduced in the past. However, the promised gains
of these techniques are not achievable nor realistic. In this paper,
we introduce a practical low-cost precoding technique to mitigate
ICI caused by Doppler spread. The gain in terms of Signal to
Interference and Noise Ratio (SINR) is 0.5 dB at a velocity of
500 km/h.
59
A Novel Adaptive FIR Filter Algorithm
Emir Turajlic, Olja Bozanovic
Sarajevo School of Science and Technology, B&H
emir.turajlic@ssst.edu.ba, olja.bozanovic@ssst.edu.ba
This paper proposes a novel Finite Impulse Response adaptive
filter. The proposed algorithm is named Intelligent Bee Colony
(IBC) algorithm. It takes some features from the Artificial Bee
Colony algorithm and combines them with the elements from
the classical gradient-based adaptive filter theory to produce an
adaptive filter that is characterized by a very fast convergence
rate. IBC algorithm is also a robust solution that performs the
global minima search with high levels of accuracy. The performance of IBC algorithm is investigated in the context of adaptive channel equalization. A set of experiments are designed to
compare its performance with the established adaptive filters,
specifically Least Mean Square, Variable Step Size and Recursive
Least Square filter. The results demonstrate the effectiveness of
the proposed method.
60
A Novel Subspace-based joint TDOA and FDOA
estimation using chirp signals for mobile multipath
environment
Yingchun Li, Daegun Oh, Jae-hwan Kim, Jong-Wha Chong
Department of Electrical and Computer Engineering at Hanyang
University, Republic Of Korea
Jeong-Dae Kim
EDA ellitech Co., Ltd., Republic Of Korea
lyc@hanyang.ac.kr, inhopes1@hanmail.net,
corekjh@hanyang.ac.kr, jchong@hanyang.ac.kr,
Jonathan@ellitech.net
In this paper, we propose subspace-based joint time difference
of arrival (TDOA) and frequency difference of arrival (FDOA)
estimation method using chirp signals for mobile multipath environments. The conventional methods for TDOA and FDOA
estimation has been developed based on the signal model derived in a single path. However, single path channel model is not
preferred in algorithm development for TDOA since it is not a
realistic channel. Therefore, the conventional algorithms which
have been developed based on the single path channel model cannot be easily extended to multipath channel. Thus, we propose a
new TDOA and FDOA estimation technique based on multipath
channel model. To achieve high accuracy, the subspace-based parameter estimation technique ESPRIT is used with some modification for a joint estimation of TDOA and FDOA. The proposed
technique shows superior performance in multipath decomposition. Using the decomposition capability, the TDOA and FDOA
for the direct path (the first arrival path) can be estimated well in
spite of the interference caused by the other received paths. The
performance of the proposed joint TDOA and FDOA estimation
technique is evaluated through computer simulations under mobile multipath channel and compared with those of conventional
methods.
61
Distributed Spectrum Management for DSL
Networks
Goran Popovic, Goran Djukanovic
Telekomunikacije RS, AD Banja Luka, B&H
goran.popovic@mtel.ba, goran.djukanovic@mtel.ba
Crosstalk is one of the main limiting factors in the data rates
achievable by digital subscriber line (DSL) systems. The presence
of crosstalk transforms DSL systems in a multi-user multi-carrier
interference environment, where different users can significantly
impact each other’s data transmission. In previous years many algorithms have been proposed to mitigate this impairment. Some
of them are centralized and others are distributed. Unbundling of
local loop will force telecom operators to use distributed systems
because it’s difficult to manage a spectrum of different operators from one centar. In this work, a new DSM method for DSL
systems is derived from the well-known Iterative Water-Filling
(IWF) algorithm. This algorithm gives a good performance in
many realistic scenarios. We present here some of them.
62
Session 3
Next-Generation Networks, Communication Software Services
and Multimedia Applications and IMS based Architectures
Overview of IMS Application Layer Interaction
Management
Mirza Varatanovic, Nerma Secic-Haracic, Mirko Skrbic, Mesud
Hadzialic, Elvedin Grabovica
University of Sarajevo, B&H
mvaratanovic@etf.unsa.ba, nsecic@etf.unsa.ba,
mskrbic@etf.unsa.ba, mhadzialic@etf.unsa.ba,
elvedin.grabovica@efsa.unsa.ba
IMS (IP Multimedia Subsystem) network has high demands from
perspective of multimedia, flexible and interactive communications. Fulfillment of those demands, with appropriate levels of
quality, is not a simple task. As usage of services has great
progress lately, there is high demand for their interaction management. Authors suggest way of Next Generation Networks
application level organization and way of modeling of application level according to service responses to application requests.
Main goal is to shift overload boundaries on the application layer
and to show that IMS application layer interaction management
is very complex, depending topic.
63
IPv4/IPv6 Transition Using DNS64/NAT64:
Deployment Issues
Enis Hodzic
BH Telecom d.d, B&H
Sasa Mrdovic
enis.hodzic@bhtelecom.ba, sasa.mrdovic@etf.unsa.ba
IPv4 address space is almost exhausted. Usage of IPv6 address
by client end hosts is limited due to small percentage of domain
names that have IPv6 address. This paper presents practical
testing in ISP that gives its users IPv6 addresses and provides
them transparent access to both IPv4 and IPv6 Internet locations. DNS64/NAT64 translation mechanism is used for this
purpose. Tests measure resource requirements on ISP side and
effects on client experience. Results show that additional DNS64
processing causes no visible impact on DNS server CPU load.
There is requirement for NAT64 device at ISP on path between
IPv6 users and IPv4 Internet. Test results show that memory
requirements for this device are small and achievable with standard hardware devices used by ISPs. Measured increase in RTT
from IPv6 clients to IPv4 Internet is less than 2%. Conclusion
is that DNS64/NAT64 translation system is viable solution for
ISP.
64
SIP Performance Metrics for IMS-based Telephony
Service
Jasmina Barakovic-Husic
BH Telecom, Joint Stock Company, Sarajevo, B&H
Emina Nekovic
University of Sarajevo, B&H
Himzo Bajric
BH Telecom, Joint Stock Company, Sarajevo, B&H
Sabina Barakovic
Ministry of Security of Bosnia and Herzegovina, B&H
jasmina.barakovic@bhtelecom.ba, emina.nekovic@gmail.com,
himzo.bajric@bhtelecom.ba, barakovic.sabina@gmail.com
The IP Multimedia Subsystem (IMS) has been recognized as a
common signaling architecture for providing next generation multimedia services. In order to enhance perceived service quality
regardless of access network and device, IMS supports Quality
of Service (QoS) negotiation and signaling. The IMS procedures
used for that purpose are based on Session Initiation Protocol
(SIP). Therefore, signaling performance of SIP plays an important role in affecting the overall Quality of Experience (QoE) in
next generation networks. Although many standards to evaluate the performance of telephony signaling protocols have been
proposed, none of the metrics address SIP. Recent research in
this field has resulted in the definitions of a standard set of metrics for measuring the performance of end-to-end SIP for basic
telephony service. This paper aims to provide an insight in the
process of measuring and evaluating SIP performance metrics as
defined in Internet Engineering Task Force (IETF) Request for
Comments (RFC) 6076. The open source IMS platform is used
as the test environment for the purpose of examining SIP performance metrics under different conditions. Presented results show
the impact of SIP signaling performance on QoE for IMS-based
telephony service.
65
Cloud based service for M2M Communication
Vanesa Cackovic, Zeljko Popovic
Ericsson Nikola Tesla, Croatia
vanesa.cackovic@ericsson.com, zeljko.popovic@ericsson.com
The mass market for M2M and consumer device connectivity is
growing fast and represents an enormous opportunity for mobile operators who can address the challenge of delivering costeffective and customized connectivity with minimal process costs.
Since the M2M market is very diverse in terms of customer requirements, operators need an industry-agnostic platform that
supports them in easily creating specific or customized types of
service offerings. The different kinds of customers lead to varying
demands on, for example, bandwidth and quality of service. The
paper discusses the cloud based M2M service which provides better support of M2M communication with much less complexity
and thus lower development cost.
66
Model and Implementation of Mobile Interactive
Guide
Damir Bolic, Dzenana Donko
bolicd@gmail.com, ddonko@etf.unsa.ba
Number of users of smart phones is increasing every day. Android platform is widely accepted and supported by developers
and users. Android platform is a software set for smart telephones that contains the operating system, a library for development and many developed applications. Users of smart phones
are becoming more demanding and keen in terms of applications
available for individual smart phone. On the other side telecom operators want to be more effective and want to offer new
dedicate applications developed for mobile phones in addition to
standard applications. In this paper will be presented a model
and implementation of applications used as an interactive guide
which aims to filter the specified locations of interest that are
located near the current device position. Locations of interest
are defined by geographic coordinates according to Google Maps
standard, and it is possible to display them graphically on a map
and to administrate them via web services. The effects of ownership of these applications by telecom operators will be discussed
in the paper.
67
Mobile account TopUp over m-commerce platform
in the IMS environment
Asaf Sarajlic
BH Telecom, B&H
Damir Omerasevic
Printec, B&H
asaf.sarajlic@bhtelecom.ba, d.omerasevic@printec.ba
This work depicts and considers automatic Top Up procedure
over m-commerce platform in the service network of Mobile Network Operator, into the IMS On-line charging architecture for
IMS session and event based services. Here is taken into consideration one real case of user’s mobile prepaid recharging, as
result of Top Up triggering, when remaining prepaid credit becomes equal or less than a defined minimal value. In this paper
is shown a new approach for On-line mobile prepaid recharging,
which is carried out during the service session in the IMS environments.
68
Session 4
Analysis of Off-line Handwritten Text Samples of
Different Gender using Shape Descriptors
Emir Sokic, Almir Salihbegovic, Melita Ahic-Djokic
esokic@etf.unsa.ba, almir.salihbegovic@etf.unsa.ba,
amelita@etf.unsa.ba
The human experience in the analysis of the handwriting of male
and female writers indicates that gender affects the appearance
of the handwritten text. These differences are usually very difficult to describe numerically. In order to analyze the handwriting
differences between male and female writers, several shape description techniques, such as the tangent angle function, curvature function and Fourier descriptors, were used in this paper. As
an additional contribution of the paper, a database of 4933 offline handwritten cursive and capitalized written words has been
created. The database consists of male and female handwriting
samples, classified by gender and handedness. The experimental
results show that typical attributes of male and female handwritings imply certain differences in shape decriptors, and those
differences have the potential for usage in gender handwriting
discrimination.
69
A zero-attracting variable step-size LMS algorithm
for sparse system identification
Mohammad Shukri Salman
Mevlana University, T urkey
Mohammad N.S. Jahromi, Aykut Hocanin, Osman Kukrer
Eastern Mediterranean University, T urkey
mssalman@mevlana.edu.tr, mohammad.sabet@emu.edu.tr,
aykut.hocanin@emu.edu.tr, osman.kukrer@emu.edu.tr
In this paper, new adaptive algorithms for sparse systems are
proposed. They are proposed in order to improve the performance of the variable step-size LMS (VSSLMS) algorithm when
the system is sparse. This is accomplished by introducing an
additional term to the cost function of the VSSLMS algorithm,
which results in a shrinkage in the update equation. The first
proposed algorithm is the zero-attracting (ZA) VSSLMS. This
algorithm outperforms the standard VSSLMS if the system is
highly sparse. This is because the shrinkage term gives the ZAVSSLMS algorithm the ability of attracting zeros and improves
its performance when the system is highly sparse. However, the
performance of the ZA-VSSLMS algorithm deteriorates if the system is less sparse or non-sparse. This is because of the fact that
the shrinkage in the ZA-VSSLMS does not distinguish between
zero taps and non-zero taps. To further improve the performance of the ZA-VSSLMS filter, the weighted zero-attraction
(WZA)-VSSLMS algorithm is introduced. The algorithm performs the same or better than the ZA-VSSLMS if the system is
highly sparse. In the other hand, if the system is less sparse or
non-sparse, it performs better than the ZA-VSSLMS and better
or the same as the standard VSSLMS algorithm. For a system
identification setting, the results indicate the high performance
of the proposed algorithms in convergence speed and/or steadystate error under sparsity condition compared with the standard
VSSLMS algorithm.
70
ZCPA features for speech recognition
Juraj Kacur, Mario Varga, Gregor Rozinaj
Faculty of Electrical Engineering and Information Technology,
Slovakia
kacur@stuba.sk, majo.varga@gmail.com,
gregor.rozinaj@stuba.sk
In this article we present implementation, modifications and optimization of zero-crossing peak amplitude (ZCPA) speech feature extraction method into Slovak speech recognition system.
ZCPA features are closely mimicking the human auditory system in the time domain, and thus they should be more robust
against common noises. Except the basic configuration several
modifications have been suggested, implemented and evaluated.
Furthermore, optimization of settings on a real system using professional database and MASPER training procedure have been
found and compared to classical features presented by MFCC
and PLP in different scenarios and noise conditions.
71
Cross-layer framework for real time H.264/AVC
video transmission over wireless channels using
outage probability
Slavche Pejoski, Venceslav Kafedziski
Faculty of Electrical Engineering and Information Technologies,
University Cyril and Methodius, Skopje, M acedonia
slavchep@feit.ukim.edu.mk, kafedzi@feit.ukim.edu.mk
We present a framework for cross layer optimized real time transmission of H.264/AVC single layer video signals over wireless
channels. In the proposed cross layer adaptation, the channel
is characterized by the probability density function of its mutual
information and the performance of the H.264/AVC encoder is
modeled by a rate distortion model that takes into account the
channel errors. This framework allows for direct adaptation to
the conditions in the wireless channel. We show the effectiveness
of the proposed framework in video transmission over Rayleigh
fading channel, when channel distribution information is available at the transmitter.
72
Issue of resource usage in content-based image
retrieval algorithms
Vedran Ljubovic, Haris Supic
vljubovic@etf.unsa.ba, hsupic@etf.unsa.ba
Content-based image retrieval (CBIR) is a field of active research
for almost 20 years. This timeframe has seen several generations
of hardware and corresponding changes in computer usage patterns. It is therefore prudent to periodically reevaluate known
methods in the context of modern hardware and usage patterns.
Overall the issue of resource usage in CBIR is somewhat neglected. In this paper some extremes in this area are benchmarked and results presented. Specifically, paper is focused on
usage scenario of indexing a personal image collection.
73
Optimized Group Delay Based Estimation of
Glottal Closure Instants
Emir Turajlic, Olja Bozanovic
Sarajevo School of Science and Technology, B&H
emir.turajlic@ssst.edu.ba, olja.bozanovic@ssst.edu.ba
Sophisticated voice source estimation techniques, such as closedphase pitch synchronous inverse filtering method, relay on accurate estimates of glottal closure instants (GCIs). In this paper,
a group delay approach to GCI estimation is presented. Specifically, the average group delay and the energy weighted group delay measures are discussed in detail. We propose an improvement
to the implementation of the group delay measures, whereby
translation invariant thresholding is used to remove aspiration
noise and other disturbances from the LPC residue instead of
the standard 2nd order Butterworth low-pass filter. The performances of the two group delay measures with and without
the proposed improvement are evaluated for a range of fixed and
pitch-synchronous group delay window lengths. The results show
that the optimal GCI estimation performance is achieved with
the energy weighted group delay measure, translation invariant
thresholding of LPC and the window length equaling exactly one
pitch period.
74
Session 5
The young and the restless of mobile phone security
(How security awareness and feeling lessen with age
in students)
Iosif Androulidakis
Jozef Stefan International Postgraduate School, Slovenia
Gorazd Kandus
Jozef Stefan Institute, Slovenia
Anel Tanovic
BH Telecom d.d. Sarajevo, B&H
sandro@noc.uoi.gr, gorazd.kandus@ijs.si,
anel.tanovic@bhtelecom.ba
The present paper answers the question whether there is a statistically significant connection between the age of a student and
his security awareness and practices in regards to mobile phone
usage. It is based on the responses of a large pool of 7172 students in 17 Universities of 10 Eastern and Southern Europe countries. Results show that there is indeed such a connection with
younger students stating that they are more aware. On the other
hand, older students feel communication with mobile phones is
less secure than what younger believe. Namely, these age groups
exhibit different values of two metrics that we named “mean security awareness value” and “mean security feeling value”. We also
introduced a “mean actual awareness value”, comparing respondents’ subjective view of awareness to the objective awareness
levels as extracted from their actual answers. There was a linear
association proving that users that feel they are more aware, indeed are so. As such, awareness and security campaigns should
focus mainly on groups that feel they are not secure in order to
enhance their confidence.
75
Modelling and Analysing the TLS protocol using
Casper and FDR
Kanita Karaduzovic-Hadziabdic
International University of Sarajevo, B&H
kanita@ius.edu.ba
This paper analyses the TLS Handshake protocol in a progressive
manner, by gradually building the protocol’s messages and message fields. Messages constituting the TLS protocol are described
by Casper, a compiler for the analysis of security protocols. FDR,
a model checking tool is then used to test whether the protocol
achieves its goals. It has been shown that TLS achieves its security goals for the systems tested. By using this progressive
approach of the TLS Handshake analysis, this paper identifies
the importance of each message and message field to the overall
achievement of the security goal of the TLS protocol. The study
also shows that the TLS protocol contains much redundancy. A
few important points that show how TLS has been carefully designed to thwart some attacks that have appeared in many of the
previous security protocols are also emphasized.
76
SIP Server Security with TLS: Relative
Performance Evaluation
Merima Kulin, Tarik Kazaz, Sasa Mrdovic
mk15172@etf.unsa.ba, tarik.kazaz@etf.unsa.ba,
sasa.mrdovic@etf.unsa.ba
VoIP (Voice over Internet) provides delivery of voice information
over unsecured IP-based networks like the Internet. VoIP data,
signaling and voice, needs to be secured in such an environment.
Security mechanisms take their toll on VoIP system performance.
SIP is dominant signaling protocol for VoIP. This paper measures
relative decrease in VoIP performance of system with secured SIP
signaling over one without it. It compares SIP with authentication enabled over three transport protocols: UDP, TCP and
TLS. Peak throughput of concurrent calls, registration request
delay, session request delay, SIP server CPU and RAM usage are
measured. Testbed environment consists of Asterisk IP private
branch exchange (PBX) as a part of Elastix server, several SIP
user agents and SIPp traffic generator. Test results show that
performance of SIP over TLS based signaling is four times lower
than the SIP signaling over UDP in most metrics.
77
Fast Implementation Zero Knowledge Identification
Schemes using the Galois Fields Arithmetic
Nikolaos Bardis
Faculty of Mathematics and Engineering Science, Univ. Military
Education - Hellenic Army Academy, Greece
Oleksandr Markovskyi
Department of Computer Engineering, National Technical University
of Ukraine, (Polytechnic Inst. of Kiev), U kraine
Nikolaos Doukas
Faculty of Mathematics and Engineering Science, Univ. Military
Education - Hellenic Army Academy, Greece
Athanasios Drigas
National Centre for Scientific Research “Demokritos”, Institute of
Informatics & Telecommunications - Net Media Lab, Greece
bardis@ieee.org, markovskyy@i.ua, nikolaos@doukas.net.gr,
dr@imm.demokritos.gr
This article proposes an approach that accelerates the realization of user identification schemes that follow the principle of
zero knowledge. The proposed approach is based on using finite field arithmetic to replace the usual modular arithmetic approaches. The application of this efficient method that was developed using Galois Fields, renders feasible an exponential reduction of the computation time required for classical zero knowledge authentication methods, such as FFSIS, Schnorr and Guillou & Quisquater. Modifications of the relevant architectures are
presented that use Galois Field multiplication operations. It is
shown, both theoretically and experimentally that the proposed
procedure attains a per order acceleration of the execution time
required for the user authentication by 2 – 3 orders of magnitude,
via a hardware implementation.
78
A new approach to relatively short message
steganography
Angel Sanchez
1Departamento de Ciencias de la Computation (Univ. Rey Juan
Carlos), 28 933 Mostoles (Madrid), Spain
Aura Conci
2Instituto de Computação (Universidade Federal Fluminense),
24210-240, Niterói (Rio de Janeiro), Brazil
Ensar Zeljkovic, Narcis Behlilovic, Vedran Karahodzic
narcis.behlilovic@etf.unsa.ba, vk15266@etf.unsa.ba
The rapid growth of Internet users and the increasing range of
data types which are exchanged over this network (video, audio,
text messages...), emphasize the security problem that this way
of communication has. The flood of multimedia contents in the
structure of transmitted data has made the appearance of images
in this network quite normal. This revived the use of steganography (hiding data within images) in order to hide information
to avoid unauthorized access. A much used technique for this
purpose, the LSB (Least Significant Bits) technique, still leads
to visible changes in the original image, which was chosen to
be the message carrier. These differences make quite a path for
a cryptanalyst to doubt the authenticity (independence) of the
picture itself. However, by using GA (Genetic Algorithm), the
differences between the original image and the image embedded
with secret data can be reduced. However, the difference between
the original image and the image with embedded information still
remains, while the achieved improvements are paid with an increase of computational complexity. Naturally a question arises:
Can the image be embedded with information in a way so that
it does not undergo any changes? Most fast responses would
be that it is not possible. This paper shows that this is in fact
possible.
79
80
Session 6
Modeling, Simulation, Communication QoS and Reliability
A new approach to detection of noise-distorted
signals based on the method of S-preparation
Svitlana Nakonechna, Mycola Petrovskyi, Leonid Timchenko
State economic technological University of transport, U kraine
Yuriy Kutaev
Design Bureau ”ZAO KIA system”, Russian F ederation
Nataliya Kokryatskaya
State economic technological University of transport, U kraine
Andriy Yarovyy
Vinnytsia National Technical University, U kraine
svetylka2008@mail.ru, pettrovsky@gmail.com,
timchen@list.ru, kutaev@ rambler.ru,
kokriatskaia@rambler.ru, axa@vinnitsa.com
The article describes method of S-preparation, which is characterized by high noise immunity and adaptability to uncertainty
and variability of the signal-jamming environment, due to the formation of pre-pipelined convolution sums of correlated images.
81
Degradable on-Chip Safety Controller with
Intra-Chip Communication for Steer-By-Wire
Systems
Josef Borcsok, Evzudin Ugljesa, Ali Hayek
Adnan Salihbegovic
j.boercsoek@uni-kassel.de, e.ugljesa@uni-kassel.de,
ali.hayek@uni-kassel.de, adnan.salihbegovic@etf.unsa.ba
High reliability and high availability are essential aspects for all
critical elements used in automotive applications. This is particularly true for control and steering systems. In this regard,
numerous steer by wire (x-by-wire) concepts were developed over
the years. Most of them considered only standard single microcontroller system architectures with a low degree of reliability according to international reliability and safety standards.
This paper presents a novel concept for a degradable safety controller for steer-by-wire systems. Based on a safety-related 1oo4architecture, the presented concept offers higher safety, reliability
and availability.
82
An approach to Integration of Contextual
Information in Case-based Recommender Systems
Haris Supic
haris.supic@etf.unsa.ba
In this paper we describe a case based approach to product recommendation process in which contextual information are integrated. The integration of contextual information into recommender systems adds an additional information value to the recommender data model. In order to evaluate the effects of the integration of contextual information, the case representation with
integrated contextual information is compared with the case representation without contextual information. We compare these
two approaches to case representation in terms of the two metrics
widely used in information retrieval (recall and precision)
83
Attempt of unbiased comparison of GPU and CPU
performance in common scientific computing
Adnan Hidic, Damir Zubanovic, Adnan Hajdarevic, Alvin
Huseinovic, Novica Nosovic
ahidic2@etf.unsa.ba, dzubanovic1@etf.unsa.ba,
ahajdarevi2@etf.unsa.ba, ahuseinovic@etf.unsa.ba,
nnosovic@etf.unsa.ba
Graphic processing units (GPU) are considered to have superior
performance over the central processing units (CPU) in performing common scientific computations. Number of factors that can
seriously change this conception are usually overlooked. In this
paper, some of these factors are taken into account and their
impact is measured, analysed and discussed. Matrix multiplication and Shell sorting examples are used to show that GPU
superiority is not allways clear.
84
Hybrid approach in design of GA implementation
for MapReduce
Amer Zec
BH Telecom d.d, B&H
Samim Konjicija, Novica Nosovic
amer.zec@bhtelecom.ba, samim.konjicija@etf.unsa.ba,
novica.nosovic@etf.unsa.ba
This paper presents results of research in development of parallel implementations of genetic algorithms with special focus on
MapReduce programming paradigm. It tries to classify and fit
this particular implementation in special model of algorithm having in mind all specific features of programming paradigm used.
Besides that, we analyse details of existing proposals for implementation and scaling GA with MapReduce, and show the results
of different approach which turned out to be antipattern in most
general cases.
85
New scientific contributions to the prediction of the
Reliability of Critical Systems which based on
Imperfect Debugging method and the increase of
Quality of Service
Ossmane Krini, Josef Borcsok
o.krini@uni-kassel.de, j.boercsoek@uni-kassel.de
This paper presents a new method by which it is possible to realistically predict the software reliability of critical systems. The
main feature of this method is that it allows estimating the number of remaining critical faults in the software. The algorithm
employs well-known methods such as Imperfect Debugging and
it provides a more reliable prognosis than the methods conventionally used for this purpose. Furthermore, the new approach
describes two processes of handling critical failures (one for detection and one for correction). The new algorithm also takes
into account the so-called repair time, a measurement that is
vitally important for a reliable prognosis. For use in the prediction model, it is mathematically described as a time function.
As every programmer knows, it can be difficult to have even the
simplest program run without faults. So-called software reliability models (SRM’s), based on stochastic and aiming to predict
the reliability of both software and hardware, have been used
since the 70’s. SRM’s rely on certain model assumptions some of
which cannot be deemed realistic anymore. Hence, for today’s reliability engineering, these models are insufficient. At this point
in time, though, there are hardly any methods that enable us
to obtain predictions as to how the reliability of critical faults
or the failure rate of critical systems behave over time. Currently, there is no mathematical model distinguishing between
critical and non-critical faults, and only few models consider Imperfect Debugging (ID). The method presented here, however,
is based on ID and it is able to distinguish between critical and
non-critical software faults. Moreover, this new method employs
a so-called Time-Delay and thus two new processes have to be
designed. Mathematically, these processes describe the detection
86
of faults and their correction, respectively. It is necessary to define appropriate distribution functions and to clearly state the
requisite model assumptions.
87
88
Session 7
Communication Subsystems: Antennas, Power supply, Radio
Techniques, Access Networks, Optical Networks and Systems
Survey and analysis of 0.18 µm CMOS integrated
antennas on 5.8 GHz for RFID systems
Mikhail Suslov, Aleksandr Timoshenko, Ksenia Lomovskaya
National Research University of Electronic Technology (MIET),
Russian F ederation
mikhail.o.suslov@gmail.com, timoshenko@edu.miet.ru,
klomovskaya@edu.miet.ru
The issue of major interest during RFID systems development
is reducing the size and price of RFID tag. This article is dedicated to design and implementation of 0.18 µm CMOS integrated
antenna for RFID system to include price of antenna implementation in price of RFID IC. Decreasing techniques of influence of
layout configuration and methods of decreasing of metal stress
states inside chip on antenna parameters are discussed. Functional synchronization was used in the generator to provide 5725
÷ 5875 MHz differential output signal with 1.8 V supply voltage.
Test antenna was implemented within test die, size 5×5 mm2 ,
0.18 µm CMOS technology. A possibility of further decreasing of
antenna size up to 1 mm2 was analyzed. Implemented antenna
has gain of -25 dB@5.8 GHz and could be used up to 9 GHz
without significant loss in efficiency.
89
Performance Improvement of High Speed
Spectrum-Sliced Dense WDM-PON System
Vjaceslavs Bobrovs, Sandis Spolitis, Girts Ivanovs, Peteris
Gavars
Riga Technical University, Institute of Telecommunications, Latvia
vjaceslavs.bobrovs@rtu.lv, sandis.spolitis@rtu.lv,
girts.ivanovs@rtu.lv, peteris.gavars@rtu.lv
This paper contains the investigation of reach improvement of
dense wavelength-division-multiplexed passive optical network
(DWDM-PON) using spectrum-sliced amplified spontaneous emission (ASE) source as a seed light. It is shown that flat-top AWG
unit provides excellent channel separation and filtering at the
same time passing sufficient high optical power from spectrally
sliced ASE broadband light source. The maximum reach of
the spectrum-sliced dense wavelength-division-multiplexed passive optical network (SS-DWDM PON) system with data transmission speed 2.5 Gbit/s can be fairly limited by chromatic dispersion (CD) because of large optical bandwidth per channel
compared to the bit rate. And therefore, dispersion degrades the
performance of a SS-DWDM PON system more than it is observed in conventional laser-based system. This paper contains
the investigation of improved high speed 8-channel spectrumsliced DWDM PON system with efficient CD compensation methods like dispersion compensating fiber (DCF) and fiber Bragg
grating (FBG). In this research it is shown that CD compensation
has an important role for guaranteed downstream optical link
performance and maximum link length of high speed SS-DWDM
PON system. Results show that FBG used for CD compensation in high speed spectrum-sliced dense WDM PON systems
provides better accumulated CD compensation and increase link
length up to 150% while DCF fiber provides up to 130% network
reach improvement.
90
Evaluation of the Maximum Permissible
Transmission Distance for the Mixed-HDWDM
Systems
Aleksejs Udalcovs, Vjaceslavs Bobrovs, Rolands Parts, Ilja
Trifonovs
Riga Technical University, Institute of Telecommunications, Latvia
aleksejs.udalcovs@rtu.lv, vjaceslavs.bobrovs@rtu.lv,
rolands.parts@rtu.lv, ilja.trifonovs@rtu.lv
The authors have evaluated the maximum permissible transmission distance for the purposed configuration of mixed-HDWDM
system that is offered as model for the designing of next generation of an optical transport networks. Proposed model complies to the following criteria: 1) optical signals are transmitted
with two different per channel bitrates – 10 and 40 Gbit/s; 2)
not only in fiber-optic transmission systems (FOTS) traditionally used modulation formats, such as NRZ-OOK or NRZ encoded differential phase shift keying (NRZ-DPSK) but also the
advanced modulation formats (e.g. 2-POLSK – orthogonal polarization shift keying) are used for encoding data; 3) minimum
channel spacing values are used for the obtaining of the maximum system’s spectral efficiency applying ITU-T Recommendation G.694.1 defined frequency grid and also developed flexedgrid with unequal frequency intervals. In general, the investigated mixed-WDM FOTS can be represented using the following
configuration scheme: [1st, 4th and 7th channels: NRZ-OOK,
R = 10 Gbit/s] – [2nd (fc = 193.1 THz), 5th and 8th channels:
2-POLSK, R=40 Gbit/s] – [3rd, 6th and 9th channels: NRZDPSK, R = 40 Gbit/s]. This is the ”pessimistic scenario” since
secures the highest in system’s channel detected signals bit-errorrate as compared with other possible bitrate distribution among
the channels. Such results were obtained in previous researches.
The maximum distance reach was done using iteration loops consisted of chromatic dispersion compensation module (DCM), optical signal inline amplifier (based on EDFA) and one span of
standard single mode fiber (SSMF, ITU-T Rec. G.652 D). One
such loop emulates one sector of a fiber-optic transmission line
(FOTL) over which the optical signals can be transmitted and
91
then successfully detected on the other fiber end with appropriate
error probability below the maximum permissible threshold. It
is found out and analysed the correlation between the maximum
distance reach and the investigated system’s average spectral efficiency and the length of used SSMF span
92
Modelling optical network components: a
network-simulator based approach
Vedran Miletic
University of Rijeka Department of Informatics, Croatia
Branko Mikac, Matija Dzanko
University of Zagreb Faculty of Electrical Engineering and Computing,
Croatia
vmiletic@inf.uniri.hr, branko.mikac@fer.hr,
matija.dzanko@fer.hr
The paper describes the design goals and methodology in creating a new model of optical telecommunication network. The
model is implemented by discrete-event network simulator ns-3.
The advantages of using the existing simulator core infrastructure provided by ns-3 are analyzed and compared to building
own simulator from scratch, or selecting a tool among other existing simulators such as ns-2, OMNeT++, and OPNET. The
requirements for feature functionality are outlined and high-level
overview of the model architecture and its components are provided. Finally, the possibilities for extending the model in future
research and development work are described.
93
Effect of Air Holes Deformation on the Dispersion
Properties in Hexagonal-lattice Photonic Crystal
Fibers
Yashar Esfahani Monfared, Ali Reza Maleki Javan
Shahre-rey Branch, Islamic Azad University, Iran
y.monfared@ieee.org, amalekijavan@yahoo.com
Deformation of air-holes usually occurs during the fabrication
process of photonic crystal fibers (PCFs). We studied the effect
of air-holes deformation on the dispersion properties in PCFs and
found new types of behavior for each quantity. Finite Difference
Time Domain (FDTD) method is used for analysis of dispersion properties in hexagonal-lattice PCFs. Also, we showed that
ultra-flattened dispersion can be achieved in elliptical-hole PCFs
over wide range of wavelengths.
94
Impulse Noise Influence on Communication System
in High-Voltage Substation
Zijad Bajramovic, Irfan Turkovic, Aleksandar Mastilovic,
Adnan Mujezinovic
zbajramovic@etf.unsa.ba, iturkovic@etf.unsa.ba,
amastilovic@etf.unsa.ba, adnan.mujezinovic@etf.unsa.ba
In real high voltage systems, it is necessary to observe system parameters. Depend on investigated values, it is possible to detect
malfunctions or overvoltage in high-voltage substation. Because
of these, communication system in actual high voltage substation
is implemented. In the high-voltage substation disconnector and
circuit breaker are installed, whose operation causing appearance
of impulse noise effect in the present communication system. Disconnector’s contacts in air-insulated substations (AIS) are moving slowly causing numerous strikes and re-strikes between contacts. Every strike causes high-frequency currents (from a few
hundred kHz to a few MHz) tending to equalize potentials at
the contacts. These processes are the source of impulse noise in
the connected communication system. In this paper measured
impulse noise level and estimate influence to probability of false
alarm appearance in the communication system are presented.
95
96
Session 8
New Proposed Structure for Communication
Engineering Curriculum
Abdurrazag Ali Aburas, Indira Muhic, Indira Rustempasic,
Busra Gheith Yildiz
International University of Sarajevo, B&H
aaburas@ius.edu.ba, imuhic@ius.edu.ba,
irustempasic@ius.edu.ba, byildiz@ius.edu.ba
At present time, the gap between industries and universities is
rapidly increasing. Fast development of industry created this
gap, because universities are not able to completely follow these
changes. Unpredictable fluctuations in industry have made communication engineering education really difficult to provide wellprepared graduate engineers. Communication engineering education has to be reformed and ready to use more advanced
technologies. We realized that one of the general problems of
student‘s education is that after graduating from their universities, they are not prepared to face the real life challenges and
full skilled to work in industry. In today’s environment, technical
competence alone is not sufficient for career success. This proposed Communication curriculum will decrease existing gab and
brings interactive, creative, interesting, effective learning methods, which includes online education, virtual labs, practical work,
problem-based learning (PBL), and lectures given by industry experts. Giving short assignments, presentations, reports, research
papers and projects students can significantly improve their nontechnical skills. Also, we included ICT technologies into our proposed curriculum engineering for teaching and learning methods. We added collaborative learning between students through
97
team work which builds theirs skills for industry environment.
The prospective on this research that we intent to introduce new
communication engineering curriculum in order to get fully constructed graduate engineer to be ready for real industry work.
98
The Design Guidelines For Virtual Network
Laboratories
Dalibor Dobrilovic, Vesna Jevtic, Zeljko Stojanov, Borislav
Odadzic
University of Novi Sad / Tecnical Faculty ”Mihajlo Pupin” Zrenjanin, Serbia
ddobrilo@tfzr.rs, vesna@tfzr.uns.ac.rs,
zeljko.stojanov@tfzr.rs, borislav.odadzic@gmail.com
In the age of rapid development of communication technologies
the educational process in the area of communication networks
has the enormous significance. In this process the large number of skilled network professionals such as: software developers,
system administrators, security engineers, etc, has to be trained.
One of the most important elements of this process is existence
of suitable educational environments. Nowadays the virtual network laboratories emerged as highly efficient environments for
training network professionals. These environments are based on
virtualization technology and provide working conditions in the
emulated environments with the high level of reality. This paper deals with the important issues to be concerned in process
of design and implementation of these laboratories. The structure of this laboratories and its configuration strongly depends
on purpose and needs of the educational process itself, as well
as of the current technology trends in the world. In this paper is presented the approach in defining the structure of virtual
network laboratory and its design. This approach is based on
research of current market trends, the dominant platforms and
technologies used today, and on world trends in high education
strategy and planning, especially in the area of networking and
communication and related subjects as well. Analyzed data is
used for design of the high efficiency virtual network laboratory
able to provide the desired learning outcome. The architecture
and structure of implemented laboratory is also described.
99
Repository analysis tools in teaching software
engineering
Vedran Ljubovic, Novica Nosovic
vljubovic@etf.unsa.ba, nnosovic@etf.unsa.ba
In this paper we evaluate a number of open-source tools for analysis of Subversion repositories for purpose of determining individual developer contribution to the project. We compare those
tools in the context of university bachelor level course in Software Engineering. Finally, we use those tools to measure actual
projects developed by students during the length of course and
compare their results with student self-reported time spent working on project.
100
Author index
Abdurrazag Ali Aburas, 97
Adnan Hajdarevic, 84
Adnan Hidic, 84
Adnan Mujezinovic, 95
Adnan Salihbegovic, 82
Aleksandar Mastilovic, 95
Aleksandr Timoshenko, 89
Aleksejs Udalcovs, 91
Ali Hayek, 50, 82
Ali Reza Maleki Javan, 94
Almir Salihbegovic, 69
Alvin Huseinovic, 84
Amer Zec, 85
Andriy Yarovyy, 81
Anel Tanovic, 75
Angel Sanchez, 79
Antonios Hatjiefremidis, 54
Asaf Sarajlic, 68
Athanasios Drigas, 78
Aura Conci, 79
Aykut Hocanin, 70
Borislav Odadzic, 99
Branka Zovko-Cihlar, 47
Branko Mikac, 93
Busra Gheith Yildiz, 97
Daegun Oh, 61
Dalibor Dobrilovic, 99
Dalibor Ilic, 52
Damir Bolic, 67
Damir Omerasevic, 68
Damir Zubanovic, 84
Dzenana Donko, 67
Elvedin Grabovica, 63
Emina Nekovic, 65
Emir Sokic, 69
Emir Turajlic, 60, 74
Enis Hodzic, 64
Ensar Zeljkovic, 79
Evzudin Ugljesa, 82
Fridtjof Feldbusch, 49
Girts Ivanovs, 90
Goran Djukanovic, 52, 62
Goran Popovic, 62
Gorazd Kandus, 75
Gregor Rozinaj, 43, 71
Hakki Soy, 51
Haris Supic, 73, 83
Helen Leligou, 54
Himzo Bajric, 65
Ilja Trifonovs, 91
Indira Muhic, 97
Indira Rustempasic, 97
Iosif Androulidakis, 75
Irfan Turkovic, 95
Jae-hwan Kim, 61
Jasmina Barakovic-Husic, 65
Jeong-Dae Kim, 61
Jong-Wha Chong, 61
Josef Borcsok, 45, 50, 82, 86
Juraj Kacur, 71
Kanita Karaduzovic-Hadziabdic,
76
101
Kenan Turbic, 55
Kyriakos Georgouleas, 54
Lambros Sarakis, 54
Leonid Timchenko, 81
Leonid Tymchenko, 57
Mahi Helmi, 53
Mario Varga, 71
Markus Rupp, 59
Maryna Semenyuk, 57
Matija Dzanko, 93
Matthias Kleifges, 49
Mehmet Bayrak, 51
Melita Ahic-Djokic, 69
Merima Kulin, 77
Mesud Hadzialic, 55, 63
Metin Hatun, 58
Michael Schreiber, 50
Michal Simko, 59
Mikhail Suslo, 89
Mirko Skrbic, 63
Mirza Varatanovic, 63
Mohamed Abdelraheem, 53
Mohammad N.S. Jahromi, 70
Mohammad Shukri Salman, 70
Mycola Petrovskyi, 57, 81
Naofal Al-Dhahir, 51
Narcis Behlilovic, 79
Natalia Kokryatskaya, 57
Nataliya Kokryatskaya, 81
Nerma Secic-Haracic, 63
Nikolaos Bardis, 78
Nikolaos Doukas, 78
Novica Nosovic, 84, 85, 100
Oleksandr Markovskyi, 78
Olja Bozanovic, 60, 74
102
Osman Hilmi Kocal, 58
Osman Kukrer, 70
Ossmane Krini, 86
Ozgur Ozdemir, 51
Paulo Diniz, 59
Peteris Gavars, 90
Qi Wang, 59
Ridha Hamila, 51
Rolands Parts, 91
Sabina Barakovic, 65
Samim Konjicija, 85
Sandis Spolitis, 90
Sasa Mrdovic, 64, 77
Slavche Pejoski, 72
Stamatis Voliotis, 54
Svitlana Nakonechna, 81
Tarik Kazaz, 77
Theodore Zahariadis, 54
Vanesa Cackovic, 66
Vedran Karahodzic, 79
Vedran Ljubovic, 73, 100
Vedran Miletic, 93
Venceslav Kafedziski, 72
Vesna Jevtic, 99
Vjaceslavs Bobrovs, 90, 91
Yashar Esfahani Monfared, 94
Yingchun Li, 61
Yue Zhu, 49
Yuriy Kutaev, 57, 81
Yusuf Suna, 50
Zeljko Popovic, 66
Zeljko Stojanov, 99
Zijad Bajramovic, 95
BIHTEL 2012 Notes
IX International Symposium on Telecommunications, Sarajevo, October, 25-27, 2012
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BIHTEL 2012 Notes
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BIHTEL 2012 Notes
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BIHTEL 2012 Notes
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BIHTEL 2012 Notes
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BIHTEL 2012 Notes
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BIHTEL 2012 Notes
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BIHTEL 2012 Notes
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BIHTEL 2012 Notes
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book of abstracts - BIHTEL-2012

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