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11-15 June 2006, Istanbul, TURKEY |
CONFERENCE PROGRAM |
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TUTORIALS |
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Please click on the
tutorial number or title to
see the abstract.
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T01
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Turbo-like Codes: Performance
Analysis, Design, Iterative
Decoding, and Applications |
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Date and Time: Sunday, 11 June,
8:00–17:00
Instructor: Prof. Sergio Benedetto,
Politecnico di Torino, Italy
Abstract:
Turbo-like codes are a broad class of
powerful error correcting codes formed
by concatenating two or more simple
constituent encoders in a parallel or
serial fashion through one or more
interleavers. We include in the class
also the low-density parity-check
(LDPC) codes characterized by a sparse
parity-check matrix. Turbo-like codes
yields astonishing performance close to
the Shannon information-theoretical
limits, yet enabling simple,
decentralized, suboptimum decoding
algorithms. After their invention in
1993, they have been inserted and
standardized in several systems, like
W-CDMA, DVB-RCS, CCSDS, DVB-S2, etc.
Beyond its application to decoding, the
iterative algorithm known as “turbo
principle” has been successfully
applied to other parts of a digital
receiver like equalization, multiuser
detection, carrier synchronization, and
others. This tutorial provides an
understanding of the principles
governing the codes behavior,
analytical tools to evaluate the
maximum likelihood performance, design
rules for both the constituent codes
and the interleaver, explanation of the
maximum-a-posteriori algorithms which
form the core of the iterative decoding
algorithms, extensive analytical and
simulation results, an analysis of
parallel decoder architectures for high
data rate applications, practical
insights into implementation aspects,
and a number of important applications
like third-generation wireless
communications, and deep-space
communications. A survey of the
characteristics of LDPC codes will be
presented, and a performance/complexity
comparison between turbo and LDPC codes
on a case study will be described.
Sergio Benedetto is a Full
Professor of Digital Communications at
Politecnico di Torino, Italy since
1981. He has been a Visiting Professor
at University of California, Los
Angeles (UCLA) and at University of
Canterbury, New Zealand. In 1998 he
received the Italgas Prize for
Scientific Research and Innovation. He
has co-authored two books on
probability and signal theory (in
italian), the book “Digital
Transmission Theory” (Prentice-Hall,
1987), “Optical Fiber Communications”
(Artech House, 1996), and “Principles
of Digital Communications with Wireless
Applications” (Plenum-Kluwer, 1999),
and over 250 papers in leading journals
and conferences. He has taught several
continuing education courses on the
subject of channel.
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T02
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Smart Environments –
Technology, Middleware and Applications |
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Date and Time: Sunday, 11 June,
8:30–12:00
Instructors:
Prof. Sajal K Das, University of Texas at
Arlington, USA
Dr. Archan Misra, Research Staff Member -
IBM T J Watson Research Center, USA
Abstract:
A concise description of the content
and goals of the tutorial (5 to 10
lines) The tutorial focuses on
emerging “smart” or “interactive”
environments, which one that is able
to acquire and apply knowledge about
an environment and its inhabitants in
order to improve their experience in
that environment. Recent and ongoing
advances in mobile and pervasive
computing, wireless and sensor
networks, adaptive displays, machine
learning, voice and image recognition
algorithms, middleware and agent
based technologies are core enablers
of this vision. In particular, the
tutorial will focus on some sample
smart space scenarios, specifically a
smart home, smart office cubicle and
interactive retail environments. At
its core, the tutorial should help
demonstrate how applications and
middleware are being re-architected
to leverage on an underlying rich
sensor and actuator network substrate
to provide both automated adaptation
to changing user preferences and
intentions, and to more natural
interaction with the networked
information infrastructure.
Dr. Sajal K. Das received B.S.
degree in 1983 from Calcutta
University, M.S. degree in 1984 from
Indian Institute of Science at
Bangalore, and Ph.D. degree in 1988
from the University of Central
Florida at Orlando, all in Computer
Science. He is a Professor of
Computer Science and Engineering and
also the Founding Director of the
Center for Research in Wireless
Mobility and Networking (CReWMaN) at
the University of Texas at Arlington
(UTA). Dr. Das is a recipient of the
UNT Student Association's Honor
Professor Award in 1991 and 1997 for
best teaching and scholarly research;
UNT's Developing Scholars Award in
1996 for outstanding research; UTA's
Outstanding Faculty Research Award in
Computer Science in 2001 and 2003;
UTA's College of Engineering Research
Excellence Award in 2003; and the
University Award for Distinguished
Record of Research in 2005. He is the
coauthor of the book Smart
Environments: Technology, Protocols
and Applications, published by John
Wiley in 2005.
Dr. Das’ current research interests
include design and development of
smart environments, resource and
mobility management in wireless
networks, mobile and pervasive
computing, wireless multimedia, ad
hoc and sensor networks, mobile
internet architectures and protocols,
distributed and grid computing,
performance modeling and simulation.
He received Best Paper Awards in the
5th Annual ACM International
Conference on Mobile Computing and
Networking (MobiCom’99), 16th
International Conference on
Information Networking (ICOIN’01),
3rd ACM International Workshop on
Modeling, Analysis and Simulation of
Wireless and Mobile Systems
(MSWiM’00), and 11th ACM/IEEE
International Workshop on Parallel
and Distributed Simulation (PADS’97).
Dr. Das serves as the Editor in Chief
of the Pervasive and Mobile Computing
(PMC) journal and also as an
Associate Editor of IEEE Transactions
on Mobile Computing, IEEE
Transactions on Parallel and
Distributed Systems, ACM/Springer
Wireless Networks, Parallel
Processing Letters, and Journal of
Parallel, Distributed and Emerging
Systems. He served as General Chair
of IEEE WoWMoM’05, IEEE PerCom’04,
IWDC’04, IEEE MASCOTS’02, ACM
WoWMoM’00-02; General Vice Chair of
IEEE PerCom’03, ACM MobiCom’00, IEEE
HiPC’00-01; Program Chair of IWDC’02,
WoWMoM’98-99; TPC Vice Chair of
ICPADS’02; and as TPC member of
numerous IEEE and ACM conferences. He
is the Vice Chair of the IEEE
Computer Society's TCPP and TCCC
Executive Committees and on the
Advisory Boards of several
cutting-edge companies.
Dr. Archan Misra is a Research
Staff Member with the Next Gen Web
Infrastructure Department at the IBM
TJ Watson Research Center, Hawthorne,
NY. He has been working on
infrastructural components and
protocols for context-based computing
and pervasive applications for the
past 3 years. In particular, he works
on IBM’s mobile computing product
line and is currently exploring the
use of SIP for retrieving an
individual’s activity on different
communication channels and thereby
enhancing presence to reflect an
individual’s availability for various
tasks. As part of his earlier job as
a researcher at Telcordia
Technologies (Bellcore), Archan
worked on mobility management
architectures for IP-based cellular
networks, including both
network-layer (extensions to Mobile
IP) and application-layer (extensions
to SIP) handoff techniques. His other
ongoing research efforts and
interests include mobility protocols
for next-generation (4G) wireless
networks, protocols for
high-performance wireless meshes and
query middleware for wireless sensor
networks. He has published
extensively in the areas of wireless
networking, congestion control and
mobility management and was a
co-author on papers that received the
Best Paper awards in ACM WOWMOM 2002
and IEEE MILCOM 2001. He serves on
the technical program committees of
several conferences, such as IEEE
INFOCOM and IEEE WOWMOM and is
currently the Untethered Technologies
chair of the IEEE Computer Society’s
Technical Committee on Computer
Communications (TCCC). Archan
received his Ph.D. in Electrical and
Computer Engineering from the
University of Maryland at College
Park in May, 2000, and his B.Tech in
Electronics and Communication
Engineering from IIT Kharagpur, India
in July 1993. Professional details
are available at
http://www.research.ibm.com/people/a/archan.
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T03
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WiFi and WiMax: Theory and Practice |
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Date and Time: Sunday, 11 June,
8:30–12:00
Instructor:
Prof. Roshdy H.M. Hafez, Carleton
University, Canada
Prof. Abbas Yongacoglu, University of
Ottawa, Canada
Abstract:
The first half of the tutorial
addresses the family of standards
that fall under the WiFi forum. It
starts by describing the DSSS and
OFDM signaling schemes of 802.11b, g
and a. It then describes the MAC
layer for the same family in its
original form which was intended for
short range indoor WLAN. The tutorial
then addresses recent MAC
enhancements and provisioning for
outdoor access including: mesh
networking, rural communications,
long distance point-to-point, fast
hand-off and integration with the
2G/3G infrastructure. The second half
addresses the group of standards that
fall under the WiMax forum which are
based on 802.16. We describe the
physical layer for various 802.16
systems including 802.16e. Single
Carrier, OFDM and OFDMA transmission
strategies are discussed with TDD,
FDD and MESH framing. The structure
of the WiMax MAC layer is described
including the data mapping and packet
scheduling of OFDMA frames. The
expanding range of applications for
both 802.11 and 802.16 families is
discussed by giving several
deployment scenarios.
Prof. Roshdy H.M. Hafez
obtained the Ph.D. in Electrical
Engineering, from Carleton
University, Ottawa, Canada. He joint
the Department of Systems and
Computer Engineering, Carleton
University as an assistant professor,
and he is now a full professor.
Dr. Hafez has many years experience
in the areas of Wireless
communications, RF and spectrum
engineering. He has lectured
extensively in wireless and related
areas. His current research focuses
on broadband wireless networking,
3G/4G, wireless over fiber and sensor
networks.
He acts as a consultant to Nortel,
Industry Canada, CRC, SigproWireless
and other telecommunications
companies. Between 1994 and 2000 Dr.
Hafez was actively involved and lead
projects in federal and provincial
centers of excellence: TRIO, CITR and
CITO. Dr. Hafez gave several
tutorials in international
conferences and taught many short
courses to the industry.
Prof. Abbas Yongacoglu has
more than 30 years of industrial and
academic experience in digital
communications. He worked at Marmara
Research Institute, Philips Research
Labs and Miller Communications
Systems. In 1987 he joined the
University of Ottawa where he is now
a full professor. He has given many
short courses to the Canadian
Industry and Government on Wireless
Communications.
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T04
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Ultra Wide Band Radio in Distributed
Wireless Networks |
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Date and Time: Sunday, 11 June,
8:30–12:00
Instructors:
Prof. Maria-Gabriella Di Benedetto,
University of Rome La Sapienza, Italy
Dr. Guerino Giancola, University of Rome La
Sapienza, Italy
Abstract:
Ultra Wide Band (UWB) radio is, in
principle, a physical transmission
technique suitable for all kinds of
applications. Given the strong power
emission constraints imposed by the
regulatory bodies in the United
States — but likely to be adopted by
other countries as well — UWB is
emerging as a particularly appealing
transmission technique for
applications requiring either high
bit rates over short ranges or low
bit rates over medium to long ranges.
The high-bit-rate, short-range case
includes wireless personal-area
networks (WPANs) for multimedia
traffic, cable replacement such as
wireless USB and wearable devices
like wireless high-fidelity
headphones. The low-bit-rate, medium-
to long-range case applies to
long-range sensor networks such as
indoor-outdoor distributed
surveillance systems; non-real-time
data applications; and in general all
data transfers compatible with a
transmission rate in the order of 1
Mbit/second over several tens of
meters. A recent release of the IEEE
802.15.4 standard for low-rate WPANs
has increased attention for the
low-bit-rate case. The scenarios of
applications mentioned above refer to
networks that commonly adopt the
self-organizing principle — that is,
distributed (ad-hoc) networks.
Examples of these networks are ad hoc
and sensor networks, such as groups
of wireless terminals located in a
limited-size geographical area,
communicating in an
infrastructure-free fashion, and
without any central coordinating unit
or base station. The main goal of
this tutorial is the analysis and
discussion of the potentials of Ultra
Wide Band (UWB) radio in the design
of distributed wireless networks.
Fundamental issues related to UWB
systems are investigated in order to
highlight the potentials of a
technology which appears as one of
the favourite candidates in the
definition of standards for new
generation wireless networks. The
tutorial will contain innovative
material in all respects both
regarding the physical layer and
upper layers. In particular,
attention will focus on the
capability provided by UWB to acquire
accurate information about node
positions in the network, which leads
to the definition of flexible and
power efficient procedures for both
resource management and routing.
Maria-Gabriella Di Benedetto
obtained her Ph.D. in
Telecommunications
in 1987 from the University of
Rome La Sapienza, Italy. In 1991, she
joined the Faculty of
Engineering of University of Rome La
Sapienza,
where currently she is a Full
Professor of
Telecommunications at the
Infocom Department. She has
held visiting positions at the
Massachusetts
Institute of Technology, the
University of California, Berkeley,
and the
University of Paris XI,
France. In 1994, she received the Mac
Kay
Professorship award from the
University of
California, Berkeley. Her
research interests include
speech analysis and synthesis, and
digital
communication systems. From 1995 to
2000, she directed four European
projects for the design of
UMTS. Since 2000 she has been active
in
fostering the development of Ultra
Wide Band (UWB) radio communications
in Europe. Within the 5th
framework, she directs for the
Infocom Dept.
two European projects
(whyless.com and UCAN) aimed at the
design and
implementation of UWB ad-hoc
networks. Within the 6th EU Framework
her
"Networking with UWB" research group
participates in the PULSERS
Integrated Project which will
integrate UWB research and
development in
Europe for the next years, and
in the LIAISON Integrated Project as
regards the application of UWB
to location-based services. She
currently
also participates in the HYCON
network of excellence. Dr. Di
Benedetto
is co-editor for the IEEE JSAC
Special Issue on UWB Radio in
Multi-Access Wireless Communications
December 2002) and for the
Journal
of Communications and Networks
Special Issue on Ultra-Wideband
Communications (December 2003). She
recently completed the co-edition
of two new
books on UWB that will be published
by 2006: UWB
Communication
Systems - A comprehensive
overview, with T. Kaiser, D. Porcino,
A. Molisch,
and I. Oppermann, Hindawi Publishing
Corporation, 2005, and
Ultra Wideband Wireless
Communications with H. Arslan and
Z.N. Chen,
John Wiley & Sons, Inc., 2006. Dr. Di
Benedetto is the co-author with
Guerino Giancola of a seminal
book on Ultra Wide Band, titled
"Understanding Ultra Wide Band Radio
Fundamentals" that was published
by Prentice
Hall in June 2004.
Guerino Giancola received the
“Laurea” degree (magna cum laude)
in
Telecommunications Engineering, and
the Ph.D. degree in Information and
Communication Engineering from
University of Rome La Sapienza, in
2001 and
2005, respectively. He is currently a
research affiliate at the
INFOCOM Department of the University
of Rome La Sapienza, Rome, Italy.
His research interests include
the analysis and modelling of Multi
User
Interference in Impulse Radio
systems, and the design of Medium
Access
Control functions and protocols for
UWB ad-hoc networks. Guerino
Giancola recently co-authored with
Maria-Gabriella Di Benedetto a book
on Ultra Wide Band from radio to the
network, titled "Understanding
Ultra Wide Band Radio Fundamentals"
and published by Prentice Hall in
June 2004. He is currently involved
in the European project “PULSERS –
Pervasive Ultra wideband Low Spectral
Energy Radio Systems” and in
the
European Network of Excellence
“HYCON−Hybrid Control: Taming
Heterogeneity and Complexity of
Networked Embedded Systems”. Guerino
Giancola is a member of CNIT
(Consorzio Nazionale
Interuniversitario
per
le Telecomunicazioni) and of the IEEE
Communication Society.
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T06
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Wireless Network Standards and Their
Convergence |
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Date and Time: Sunday, 11 June,
8:30–12:00
Instructor: Prof. H Anthony Chan,
University of Cape Town, South Africa
Abstract:
The existing wireless systems
standards are diverse and include
those of 2.5G, 3G, 3.5/4G, Bluetooth,
WirelessLAN, and WiMAX. In the wide
area network distance range, 2.5G and
3G wireless converges voice and data
to a broadband wireless data network
to serve multimedia applications. In
the local-area-network intermediate
distance range, the lower cost
WirelessLAN has been growing very
fast all over the world. In the
personal-area-network short distance
range, the even lower cost Bluetooth
network is enabling many more
wireless applications. In the
metropolitan-area-network distance
range, WiMAX is growing rapidly. In
moving to emerging 4G wireless
systems, the existing wireless
systems need to interwork together. A
high level understanding of all these
networks is presented to enable one
to understand how these different
systems fit together and converge
with the wireline systems.
H Anthony Chan received his
PhD in physics at University of
Maryland, College Park in 1982 and
then continued post-doctorate
research there in basic science.
After joining the former AT&T Bell
Labs in 1986, his work moved to
industry-oriented research in areas
of interconnection, electronic
packaging, reliability, and assembly
in manufacturing, and then moved
again to network management, network
architecture and standards for both
wireless and wireline networks. He
had designed the Wireless section of
the year 2000 state-of-the-art
Network Operation Center in AT&T. He
was the AT&T delegate in several
standards work groups under 3rd
generation partnership program
(3GPP). During 2001-2003, he was
visiting Endowed Pinson Chair
Professor in Networking at San Jose
State University. In 2004, he joined
University of Cape Town as professor
in the Department of Electrical
Engineering. He has taught different
courses in wireless networks and in
network convergence.
Prof. Chan is distinguished speaker of IEEE
CPMT Society and is in the speaker
list of IEEE Reliability Society
since 1997.
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T08
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MIMO Systems for Wireless
Communication |
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Date and Time: Sunday, 11 June,
13:30–17:00
Instructors:
Dr. Angel Lozano, Bell Labs – Lucent, USA
Dr. Constantinos Papadias, Bell Labs -
Lucent , USA
Abstract:
Multiple-Input Multiple Output (MIMO)
technology has emerged, in the last
decade, as a powerful means of
increasing the performance of
wireless communication systems.
Research on this relatively new
technology has penetrated in a
substantial way many fields, ranging
from signal processing to
communication theory and channel
modeling. Equally importantly, MIMO
technology has rapidly made its way
into current and next generation
communication standards and systems.
This tutorial presents a
comprehensive overview of the theory
that underlies MIMO communication as
well as a perspective of how it is
already impacting emerging commercial
systems. The tutorial is organized in
3 distinct parts. In the first part,
we establish the necessary basics:
information-theoretic fundamentals,
modeling of fading channels,
transceiver architectures, diversity,
space-time coding, and channel
estimation. In the second part, we
examine more advanced topics:
diversity vs. multiplexing trade-off,
coherence vs. noncoherence, precoding
and optimum signaling, and multiuser
MIMO (uplink, downlink and intercell).
In the third and final part, we
illustrate some of the applications
that MIMO is finding in cellular
systems and wireless LANs, and we
anticipate other exciting
applications that are forthcoming.
Angel Lozano (IEEE S'90, M'99,
SM'02) was born in Manresa, Spain, in
1968. He received the Engineer degree
in telecommunications (with honors)
from the Polytechnical University of
Catalonia, Barcelona, Spain, in 1992
and the Master of Science and Ph.D.
degrees in Electrical Engineering
from Stanford University, Stanford,
CA, in 1994 and 1998 respectively.
Between 1996 and 1998 he worked for
Pacific Communication Sciences Inc.
and for Conexant Systems in San
Diego, CA. Since
Constantinos Papadias was born
in Athens, Greece, in 1969. He
received the diploma of electrical
engineering from the National
Technical University of Athens (NTUA)
in 1991 and the Ph.D. degree in
signal processing (highest honors)
from the Ecole Nationale Supérieure
des Télécommunications (ENST), Paris,
France, in 1995. From 1992 to 1995,
he was Teaching and Research
Assistant at the Mobile
Communications Department, Eurécom,
France. In 1995, he joined the
Information Systems Laboratory,
Stanford University, Stanford, CA, as
PostDoctoral Researcher, working in
the Smart Antennas Research Group. In
November 1997 he joined the Wireless
Research Laboratory of Bell Labs,
Lucent Technologies, Holmdel, NJ, as
Member of Technical Staff and was
later promoted to Technical Manager.
He has authored several papers,
patents and standards contributions
and he received the IEEE Signal
Processing Society’s 2003 Young
Author Best Paper Award. He
participates in several research
projects within the European
Commission’s Information Society
Technologies (IST) program and
represents Lucent Technologies at the
steering board of the Wireless World
Research Forum (WWRF). He is guest
co-editor of a special issue on MIMO
Communications and Signal Processing
of the EURASIP Journal on Applied
Signal Processing, as well as an
upcoming book on MIMO systems. He is
a member of the Signal Processing for
Communications Technical Committee of
the IEEE Signal Processing Society
and Associate Editor for the IEEE
Transactions on Signal Processing.
Dr. Papadias is a Senior Member of
IEEE and a member of the Technical
Chamber of Greece.
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T10
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Infrastructure-Based Multihop, Relay
and Mesh Wireless Networks |
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Date and Time: Sunday, 11 June,
13:30-17:00
Instructor: Halim Yanikomeroglu, Carleton
University, Canada
Abstract:
Simple calculations indicate that the
provision of very high data rates,
beyond small pockets, is not feasible
with the conventional wireless
network architectures. Even the
recent advances in antenna
technologies (such as smart antennas
and MIMO systems) and signal
processing techniques (such as
advanced channel coding methods) do
not seem to be sufficient to
alleviate the tremendous potential
stress that will be incurred on the
link budget in future wireless
networks with the aggregate rates of
100 – 1000 Mbps. Towards that end,
the augmentation of the current
networks with the multihop capability
is considered to be the most feasible
architectural upgrade to facilitate
almost ubiquitous high data rate
coverage in the most cost-effective
manner. In this context, there has
been growing interest in both
academia and industry in the concept
of relaying in infrastructure-based
wireless networks such as next
generation cellular (B3G, 4G), WLAN (WiFi,
HiperLAN2), and broadband fixed
wireless (802.16, WiMax, HiperMAN)
networks. Multihop communications can
be facilitated through the use of
low-power/low-cost fixed relays
deployed by the service provider, or
through other wireless terminals in
the network. This tutorial will
present the concept of relaying in
infrastructure-based networks, with
its fundamental dynamics, potentials
and limitations. The tutorial will
cover physical layer issues
(including novel diversity
techniques, virtual antenna arrays,
and cooperative relaying), systems
level issues (including multiple
access, ARQ, radio resource
management, coverage, capacity, and
throughput) and networking issues
(including intelligent routing, load
balancing, and handoff).
Halim Yanikomeroglu was born
in
Giresun, Turkey, in 1968. He
received a B.Sc. degree in
Electrical and Electronics
Engineering from the
Middle East Technical University,
Ankara, Turkey, in 1990, and an
M.A.Sc. degree in Electrical
Engineering (now ECE) and a Ph.D.
degree in
Electrical and Computer Engineering
from the
University of Toronto, Canada, in
1992 and 1998, respectively. Dr.
Yanikomeroglu was with the Research
and Development Group of Marconi
Kominikasyon A.S., Ankara, Turkey,
from January 1993 to July 1994. Since
1998 Dr. Yanikomeroglu has been with
the Department
of Systems and Computer Engineering
at
Carleton University, Ottawa,
where he is now an Associate
Professor with tenure. His research
interests include almost all aspects
of wireless communications with a
special emphasis on
infrastructure-based multihop/mesh/relay
networks. At Carleton University, he
teaches graduate courses on digital,
mobile, and wireless communications.
Dr. Yanikomeroglu has been involved
in the steering committees and
technical program committees of
numerous international conferences in
wireless communications; he has also
given several tutorials in such
conferences. He was the Technical
Program Co-Chair of the IEEE Wireless
Communications and Networking
Conference 2004 (WCNC'04).
He was an Editor for
IEEE Transactions on Wireless
Communications during 2002-05,
and a guest editor for
Wiley Journal on Wireless
Communications & Mobile Computing;
he was an Editor for
IEEE Communications Surveys &
Tutorials for 2002-03. Currently he
is serving as the Chair of the IEEE
Communications Society’s
Technical Committee on Personal
Communications (TCPC), he is also
a member of IEEE ComSoc’s Technical
Activites Committee (TAC). He is a
member of the Advisory Committee for
Broadband Communications and Wireless
Systems (BCWS) Centre at Carleton
University. Dr. Yanikomeroglu is a
registered
Professional Engineer in the
province of Ontario, Canada.
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T11
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IPTV Technologies and Deployment
Challenges |
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Date and Time: Sunday, 11 June,
13:30–17:00
Instructors:
Dr. Swarup Acharya, Bell Labs – Lucent, USA
Mr. Anurag Srivastava, Bell Labs – Lucent,
USA
Abstract:
IPTV, or, Television over IP, is
generating huge interest in the
telecom industry lately. Telecom
service providers (Telcos) view IPTV
as a ticket to compete against the
Cable industry by offering television
services over Fiber/DSL lines. By
offering video over their access
infrastructure, Telcos hope to match
the voice, video and data
(“triple-play”) offering of Cable
providers. However, unlike Cable
television (CATV) systems that are
typically analog transmissions on a
broadcast medium, IPTV architectures
deliver digital television using
IP-multicast over point-to-point
hybrid Fiber/DSL infrastructure.
Unlike the more mature CATV
infrastructure, IPTV leverages the
most recent advances in networking
and video compression technologies
that while enabling more efficient
networks, is also causing Telcos
growing pains in field deployments.
Swarup Acharya is a Technical
Manager in the Integrated Networks
Research Department at Bell Labs. He
received his Ph.D. from Brown
University and a B.Tech (Hons.) from
Indian Institute of Technology,
Kharagpur. He performs research on
IPTV and next-gen access, data and
optical networking, network
management and mobile computing. He
has published extensively in those
areas, authoring some of the most
frequently cited papers in mobile
database systems. He also has more
than 25 patents approved, or pending,
with the USPTO. Dr. Acharya actively
collaborates with Lucent business
units to transform his research into
market-differentiating products. Dr.
Acharya is an experienced speaker
having presented to both technical
and non-technical audiences including
conferences, tradeshows, panels and
Lucent customer meetings. His
presentation at the MPLS 2004
tradeshow was one of the top-rated
talks. He recently was awarded the
Speaker of the Year award for
2005 by the IEEE New Jersey Coast
section for his presentation on “MPLS
Network Tuning: How to Get Most from
Your Network”. He is also an invited
speaker at the IEEE Bandwidth
Management workshop next month. His
CV listing his various speaking
engagements to date is available from
his home page.
Anurag Srivastava received his
B.E (E.E) degree from University of
Gorakhpur, India and M.S (Comp Sc.)
from Indian Institute of Science,
Bangalore in1997 and 1999
respectively. He has been working as
Member of Technical Staff at
Integrated Networks Research
department of Bell Labs, Lucent
Technologies since 2000. His research
interests are in the area of video
delivery over IP networks, location
based technologies in wireless
networks, MPLS and SONET/SDH
protocols, and in solving complex
routing and optimization problems in
communication networks. His research
work on location-based technologies
was featured on NBC and over
twenty affiliate stations in
2004. He has over 10 patents awarded
or pending and several research
papers to his credit.
He has spoken at several major
telecom conferences and presented his
research work in industry trade
shows. Recently, he gave a tutorial
at the IEEE Sarnoff Symposium 2005 on
the Video over Next-generation DSL
Networks: Challenges and
Opportunities. Most recently, he
demonstrated his research work on
"Universal IPTV: Anywhere, Anytime,
Any device" at Supercomm 2005 in
Chicago.
|
|
T12
● |
Wireless Multimedia Communications |
|
Date and Time: Thursday, 15 June,
8:30–17:00
Instructor: Prof. Lajos Hanzo, University
of Southampton, UK
Abstract:
Wireless multimedia communication
devices are becoming ever more
powerful and sophisticated, as seen
on television. Nonetheless, the
provision of realistic
“tele-presence” services requires a
further quantum leap from the current
state-of-the-art represented by the
popular mobile telephone. Based on
the presenters monographs and papers
(www.ecs.soton.ac.ukpeoplelh)
[1]-[8] he recent advances in this
challenging field are reviewed,
commencing with a portrayal of the
related multimedia source codecs,
advanced channel codecs and
burst-by-burst adaptive modems, such
as those used by the High-Speed
Downlink Packet Access (HSDPA) mode
of the third-generation (3G) wireless
systems, including space time codecs
and other MIMO systems.
Commencing with a review of the
Shannonian information-theoretic
design principles, powerful system
design examples will be presented,
which are capable of approaching the
channel capacity. The limitations of
the Shannonian lessons in the context
of realistic fading, rather than
Gaussian channels will be detailed.
To elaborate a little further, most
multimedia source signals are capable
of tolerating lossy, rather than
lossless delivery to the human eye,
ear and other human sensors. The
corresponding lossy and preferably
low-delay multimedia source codecs
however exhibit unequal error
sensitivity, which is not the case
for Shannon’s ideal entropy codec.
Numerous jointly optimised turbo
transceiver designs capable of
providing unequal error protection
for MPEG-4 coding aided wireless
video telephony and audio
transmission will be highlighted,
which exhibit a performance close to
the channel capacity. Sophisticated
multi-stage iterative detectors will
be studied, which exchange extrinsic
information across several detection
stages, including Space-Time Trellis
Coding (STTC) invoked for the sake of
mitigating the effects of fading, as
well as bandwidth efficient Turbo
Trellis Coded Modulation (TCM) or
Bit-Interleaved Coded Modulation (BICM).
These multistage turbo systems
require the employment of the
powerful iterative receiver design
tools referred to as
three-dimensional (3D) Extrinsic
Information Transfer (EXIT) Charts.
Lajos Hanzo received his
first-class Master degree in
electronics in 1976, his PhD in 1983
and his Doctor of Sciences (DSc)
degree in 2004. He is a Fellow of the
Royal Academy of Engineering (FREng).
During his career in
Telecommunications he has held
various research and academic posts
in Hungary, Germany and the UK. Since
1986 he has been with the School of
ECS, University of Southampton, UK,
where holds the Chair in
Telecommunications. He co-authored 11
books [1]-[10] totalling 8000 pages
on mobile radio communications,
published in excess of 500 research
papers, organised and chaired
conference sessions, presented
overview lectures and has been
awarded a number of distinctions.
Currently he heads an academic
research team, working on a range of
research projects in the field of
wireless multimedia communications
sponsored by industry, the
Engineering and Physical Sciences
Research Council (EPSRC) UK, the
European IST Programme and the Mobile
Virtual Centre of Excellence (VCE),
UK. He is an enthusiastic supporter
of industrial and academic liaison
and he offers a range of industrial
courses. Lajos is also an IEEE
Distinguished Lecturer of both the
Communications as well as the
Vehicular Technology Society and a
Fellow of both the IEE and IEEE. For
further information on research in
progress and associated publications
please refer to
http://www-mobile.ecs.soton.ac.uk;
|
|
T13
● |
A Tutorial for Modeling and Test
Generation for Voice Over IP Applications:
Challenges and Solutions |
|
Date and Time: Thursday, 15 June,
8:30–12:00
Instructors:
Prof. Umit Uyar, City University of New
York, USA
Mr. James Allen and Ms. Diane Somers, Avaya,
USA
Abstract:
Recently, Voice over IP (VoIP)
applications have been very popular
in the area of communications
protocol development. The call
control protocol for VoIP
applications is the Session
Initiation Protocol (SIP). As defined
in RFC 3261, SIP specification is
written in English, with several call
flow examples shown in accompanying
standards such as RFC 3665 for
supplementary services of hold,
conference, etc. In general, due to
its informal nature, the
specifications of SIP procedures are
intended to be examples for SIP
developers and hence represent only a
limited set of functionality.
The expected behavior of VoIP
implementations, combined with
complex timing requirements for TCP
and UDP transports, make modeling SIP
procedures a challenge. This tutorial
will present finite state machine (FSM)
and extended FSM (EFSM) models
(represented in SDL) for various SIP
services such as basic call setup,
registration, conference, hold and
transfer. These models will then be
studied for their suitability for
automated test generation methods.
The models will then be re-visited to
be modified for automated test
generation purposes.
The tutorial will also present an
evaluation of standardized tests for
SIP implementations (e.g., ETSI), and
commercial test generation and
execution tools for SIP testing. The
tutorial will conclude with
guidelines for developers and
testers.
A live demo for test generation and
execution will be setup using the SIP
phones from Avaya.
Dr. Uyar is currently with the
City College and the Graduate Center
of the City University of New York.
Dr. Uyar's interests include testing
and reliability of computer and
communication networks and protocols.
Dr. Uyar was a Co-Principal
Investigator for two multi-million
dollar grants from the U.S. Army
Research Labs, awarded to the City
University of New York.
He was a Distinguished Member of
Technical Staff at AT&T Bell Labs
until 1993, where he received a Vice
Presidential Quality Award for
co-designing software tools, three
AT&T Bell Labs Vice Presidential
Research Appreciation Awards, and a
Best Paper Award in AT&T Electronic
Testing Conference. He was granted
"Docent" title by the National
University Council of Turkey in 1992.
He was the co-chair of the 18th IFIP
Int'l. Conf. on Testing of
Communicating Systems (Testcom 2006),
6th Int'l. Conf. on Formal
Description Techniques (Forte 1993),
and the 12th Int'l. Symp. on Protocol
Specification, Testing and
Verification (PSTV 1992), He
co-edited the book titled
"Conformance Testing Methodologies
and
Architectures for OSI Protocols,"
published by the IEEE Computer
Society Press. Dr. Uyar holds three
U.S. patents.
Dr. Uyar has a B.S. degree from
Istanbul Teknik Universitesi, and
M.S. and Ph.D. degrees from Cornell
University, Ithaca, NY, all in
Electrical Engineering.
Mr. Allen received his M.S.
degree from Purdue University,
Indiana, in 1978, in Engineering
Sciences, with a specialization in
Large Scale Integer Programming.
Mr. Allen's career spans an extensive
industrial experience in developing,
testing and verifying industrial
telephony applications in AT&T Bell
Labs, Lucent, and currently at Avaya.
While in Bell Labs, he received the
Distinguished Member of Technical
Staff Award. In 1988 he was promoted
to management and has since managed
teams responsible for developing and
testing ISDN telephones, digital
telephones, and IP Telephones.
In Avaya, he recently led in the
creation of a global team,
specializing testing and verification
of Avaya telephones. The latest work
of the team is in the development
automated methods for the testing of
Avaya SIP Telephones. The team was
recognized with an Avaya Quality
award on 16 August, 2005 for this
work.
Mr. Allen's current assignment is
management of the development of a
new Avaya telephone product.
Mr. Allen holds two U.S. patents in
the field of telephone design.
Ms. Somers' extensive
industrial experience includes
product deployment, systems
engineering, and system testing and
verification of
industrial telephony applications in
AT&T Bell Labs, Lucent, and,
currently, at Avaya.
Ms. Somers has twice been the
recipient of the Bell Labs
Extraordinary
Contribution Award and once the Avaya
Cup Award. Currently, she is the
leader of a twelve person team
specializing in testing automation
and verification of Avaya Telephones.
The recent work of her team has
focused upon the verification of
Avaya SIP Telephones.
Ms. Somers received her M.S. degree
from Stevens Institute of Technology,
Hoboken, New Jersey, in Computer
Science.
|
|
T14
● |
Wireless IP Networks Security:
Issues and Challenges |
|
Date and Time: Thursday, 15 June,
8:30–12:00
Instructors:
Dr. Subir Das and Dr. Farooq Anjum , Senior
Scientist - Telcordia Technologies, USA
Abstract:
Wireless IP networks are becoming an
integral part of the next generation
ubiquitous computing environment. The
marriage between cellular and IP
networks along with the evolution of
third and fourth generation networks
will enable users to realize the
concept of anywhere and anytime
Internet connection whether based on
802.11 LANS in enterprise networks
and public hot spots or WANS (e.g.,
GPRS, WCDMA, CDMA2000, UMTS, WiMAX,
etc.). Among several other issues,
security is a major concern for users
as well as operators in wireless IP
networks in particular, converged
wireless IP networks. While some
security concerns are similar to
those of wireline IP networks, many
are inherent to the underlying
wireless access networks that are
open to intruders and attackers. As a
result many current solutions for
similar problems in wireline IP
networks are not extensible to
wireless environments. This is in
addition to the several new
vulnerabilities introduced on account
of the wireless access links.
Moreover, wireless networks and
devices have several constraints such
as low and expensive bandwidth,
battery power, intermittent
connectivity, etc. This tutorial will
focus on security issues and
challenges in next generation
converged wireless IP networks. We
will first present the basics of WLAN,
WiMAx and 3G networks security and
explain why conventional security
solutions and architectures are
inappropriate and infeasible in
converged wireless IP networks. Then
we will address the vulnerabilities,
threats, and attacks that are
possible in such networks (both WLAN,
WiMAX, 2G/3G and IMS networks). We
will discuss various mechanisms and
protocols used in WLAN, WiMAX and 3G
networks including IMS such as WEP,
WPA, TKIP, CCMP, 802.1X,, EAP-AKA,
PKM, and Kasumi. We will also
emphasize the weaknesses and
countermeasures of existing solutions
and highlight the research issues and
open challenges.
Subir Das has been a Senior
Scientist in Mobile Networking
research department, Telcordia
Technologies Inc. since 1999. Dr. Das
received his PhD in Computer
Engineering from E & ECE Department,
Indian Institute Technology,
Kharagpur, India. During 1997-99, Dr.
Das was a faculty member in the same
Department where he had supervised
four MS students and one doctoral
student. Dr. Das was a Principal
Investigator of an Army Research
Laboratory (ARL) sponsored project on
Secure, Dynamic Ad Hoc Networking. He
was a member of the TPC of several
conferences, IEEE Sarnoff 2004/2005,
Percom 2003, VTC 2003, and WoWMoM
2000/2001/2002. He is reviewer of
Mobicom 2003/2004, Infocomm 2003, ICC
2002/2003, Globecom 2002/2003, IEEE
JSAC, TMC, and Wireless
Communication. He has published more
than forty papers in the area of
wireless networking. Dr. Das has
three US patents to his credit and
twelve applications are pending. He
is a lead contributor to IEEE and
IETF Standards. He was the co-chair
of IETF PANA WG. His current research
interests include mobility management
in 3G wireless access systems,
security in wireless IP networks,
auto-configuration and security of ad
hoc, mobile networks, and wireless
multimedia.
Farooq Anjum is a Senior
Scientist in Telcordia Technologies.
Farooq finished his PhD from the
University of Maryland at College
Park and has been with Telcordia ever
since. His current research interests
include security in wireless
networks, middleware technologies and
call control. He has been very active
in the area of wireless security. He
is a member of the TPC of several
conferences such as as IEEE Mobicom
2005/2004, DSSNS 2006, WoWMoM 2006,
WCNC 2005, WirelessCom 2005,
Mobiquitous 2006, sponshorships chair
of SecureComm 2005, publication chair
of Securecomm 2006, finance chair of
WiOpt 2006 and a panel organizer on
security at IEEE SECON 2006. He is
also a lead guest editor of IEEE JSAC
sp. issue on security in wireless ad
hoc networks as also an associate
editor of IEEE WCMC and IEE Proc.
Information Security. He is also an
adjunct professor at Stevens
Institute of Technology and Univ. of
Pennsylvania where he has been
teaching graduate courses in the area
of network security.
|
|
T15
● |
Coding for MIMO Systems |
|
Date and Time: Thursday, 15 June,
8:30–12:00
Instructors:
Prof. Tolga Duman, Arizona State
University, USA
Prof. Ali Ghrayeb, Concordia University,
Canada
Abstract:
Achieving reliable high-speed data
transmission over wireless links is a
challenging task due to multipath
fading and interference from other
users. The single most effective
technique to combat such adverse
effects is to introduce diversity
into the system. There are many
different diversity techniques
including temporal, frequency, and
spatial diversity. Furthermore,
different diversity techniques may be
combined to enhance the performance
of the wireless system. Space-time
coding, a new coding paradigm
suitable for multiple antenna
systems, is a successful example that
combines temporal diversity (through
channel coding) and spatial diversity
(through multiple transmit and
receive antennas). This tutorial
gives a complete overview of the
various emerging space-time coding
techniques. These include space-time
trellis codes, space-time block
codes, turbo codes, and concatenated
codes with iterative decoding, among
others. The tutorial focuses on the
construction and performance analysis
of such coding schemes over various
wireless channels. In addition, it
addresses information theoretical
limits for multi antenna systems over
wireless channels. Participants will
also see comparisons between these
coding schemes in terms of
performance and complexity. In
addition, several practical
space-time coding architectures such
as BLAST and its variants will be
described. Other practical issues
such as antenna selection at the
transmitter and/or receiver and the
effects of sub-channel correlation on
the system performance will also be
considered.
Tolga M. Duman received the
B.S. degree from Bilkent University
in 1993, M.S. and Ph.D. degrees from
Northeastern University, Boston, in
1995 and 1998, respectively, all in
electrical engineering. In August
1998, he joined the Electrical
Engineering faculty of Arizona State
University where he is currently an
associate professor. Dr. Duman's
current research interests are in
digital communications, wireless and
mobile communications, channel
coding, turbo codes, coding for
recording channels, and coding for
wireless communications. Dr. Duman
published about 30 journal papers and
60 refereed conference papers in
these areas. He is a recipient of the
National Science Foundation CAREER
Award, IEEE Third Millennium medal,
and IEEE Benelux Joint Chapter best
paper award (1999). He is a member of
the IEEE Information Theory and
Communication Societies. He
co-instructed technical tutorials on
coding for MIMO systems at IEEE
Globecom 2003 and IEEE WCNC 2004 and
IEEE ICC 2005.
Ali Ghrayeb received the Ph.D.
degree in electrical engineering from
the University of Arizona, Tucson,
AZ, in May 2000. From 2000 to 2002,
he was an Assistant Professor in the
Electrical Engineering Department at
the American University of Sharjah,
UAE. Since August 2002, he has been
with the Department of Electrical and
Computer Engineering, Concordia
University, Montreal, Canada, where
he is an Assistant Professor. His
research interests include digital
and wireless communications, channel
coding, turbo codes, space-time
codes, linear and nonlinear
equalization, and coding for data
transmission and storage. He has
published over 50 refereed technical
papers in the above research areas.
He served/is serivg on the Technical
Program Committee of several IEEE
conferences, including VTC 2003/2004,
ICC 2004/2004, and PIMRC 2003/2004.
He co-instructed technical tutorials
on coding for MIMO systems at IEEE
Globecom 2003, IEEE WCNC 2004, and
IEEE ICC 2005.
|
|
T16
● |
Traffic Engineering and
Quality of Service Management for IP-
based Next Generation Networks |
|
Date and Time: Thursday, 15 June,
8:30–12:00
Instructor: Prof. George Pavlou, University
of Surrey, UK
Abstract:
Next Generation IP-based Networks
will offer Quality of Service (QoS)
guarantees by deploying technologies
such as Differentiated Services (DiffServ)
and Multi-Protocol Label Switching (MPLS)
for traffic engineering and
network-wide resource management.
Despite the progress already made, a
number of issues still exist
regarding edge-to-edge intra-domain
and inter-domain QoS provisioning and
management. This tutorial will start
by providing background on
technologies such as DiffServ, MPLS
and their potential combination for
QoS support. It will subsequently
introduce trends in Service Level
Agreements (SLAs) and Service Level
Specifications (SLSs) for the
subscription to QoS-based services It
will then move to examine
architectures and frameworks for the
management and control of QoS-enabled
networks, including the following
aspects: approaches and algorithms
for off-line traffic engineering and
provisioning through explicit MPLS
paths or through hop-by-hop IP
routing; approaches for dynamic
resource management to deal with
traffic fluctuations outside the
predicted envelope; a service
management framework supporting a
“resource provisioning cycle”; the
derivation of expected traffic demand
from subscribed SLSs and approaches
for SLS invocation admission control;
a monitoring architecture for
scalable information collection
supporting traffic engineering and
service management; and realization
issues given the current
state-of-the-art of management
protocols and monitoring support. The
tutorial will also include coverage
of emerging work towards inter-domain
QoS provisioning and relevant
industrial activities such as
IPsphere. In all these areas, recent
research work will be presented, with
pointers to bibliography and a
specially tailored Web page with
additional resources.
Prof. George Pavlou holds the
Chair of Communication and
Information Systems at the Center for
Communication Systems Research, Dept.
of Electronics Engineering,
University of Surrey, UK, where he
leads the activities of the Networks
Research Group (http://www.ee.surrey.ac.uk/CCSR/Networks/).
He received a Diploma in Engineering
from the National Technical
University of Athens, Greece and MSc
and PhD degrees in Computer Science
from University College London, UK.
His research interests encompass
network and service management,
network planning and dimensioning,
traffic engineering, quality of
service, mobile ad hoc networks,
service engineering, multimedia
service control and management, code
mobility, programmable networks and
communications middleware. He is the
author or co-author of over 120
papers in fully refereed
international conferences and
journals and has contributed to 4
books. He has also contributed to
standardization activities in ISO,
ITU-T, TMF and IETF. He was the
technical program co-chair of IEEE/IFIP
Integrated Management 2001 and he is
co-editor of the bi-annual IEEE
Communications Network and Service
Management series. See also
http://www.ee.surrey.ac.uk/Personal/G.Pavlou/
for additional information and his
publications in PDF.
|
|
T18
● |
MIMO Detection: Theory and Practice |
|
Date and Time: Thursday, 15 June,
13:30–17:00
Instructor: Prof. John Barry, Georgia
Institute of Technology,
USA
Abstract:
The adoption of multiple-input
multiple-output (MIMO) techniques in
wireless communications systems is
fueled by the promises of high
spectral efficiency and robustness to
multipath fading. A key component of
a MIMO system is the MIMO detector at
the receiver, whose job is to recover
the symbols that are transmitted
simultaneously from multiple
transmitting antennas. In practical
applications, the MIMO detector is
often the bottleneck for both
performance and complexity.
This tutorial presents the basic
principles of MIMO detection. We
describe the fundamental problem, and
present an overview of MIMO
techniques that are used in practice.
These include linear detection
techniques, such as the zero-forcing
and minimum-MSE detectors. We will
provide several views of the
decision-feedback detector, including
the nulling-and-cancelling view, the
matrix view, the Gram-Schmidt view,
the whitened-matched filter view, and
the linear-prediction view. We will
compare the ZF and MMSE versions of
these detectors. We will also
describe multistage detectors and
tree-based detectors like the sphere
detector and its variations, as well
as lattice-aided detectors. The
impact of ordering on performance and
complexity will be described.
This tutorial will not only provide
an overview of MIMO detection but
also introduces the current research
results in this area.
Dr. John R. Barry received the
M.S. and Ph.D. degrees from the
University of California at Berkeley
in 1987 and 1992, respectively, both
in electrical engineering. Since 1985
he has held engineering positions in
the fields of communications and
radar systems at Bell Communications
Research, IBM T.J. Watson Research
Center, Hughes Aircraft Company, and
General Dynamics. He is a frequent
author and instructor in the field of
MIMO communications. He is a coauthor
of Digital Communication,
Third Edition, Kluwer, 2004, and the
author of Wireless Infrared
Communications, Kluwer, 1994. He
received the 1992 David J. Griep
Memorial Prize and the 1993 Eliahu
Jury Award from U.C. Berkeley, a 1993
Research Initiation Award from NSF,
and a 1993 IBM Faculty Development
Award. He joined the Georgia Tech
faculty in 1992, where he is an
associate professor with the School
of Electrical and Computer
Engineering. Currently he is visiting
the Georgia Tech Lorraine campus in
Metz, France.
|
|
T19
● |
Management Technology for Ubiquitous
Computing and Communication |
|
Date and Time: Thursday, 15 June,
13:30–17:00
Instructor: Prof. Jong-Tae Park, Kyungpook
National University,
Korea
Abstract:
Recently, the ubiquitous computing
and communication receives much
attention due to its promising new
business opportunity in IT and other
related areas. In a ubiquitous
environment, the surrounding
contextual information acquired from
sensors, GPS, and people plays very
important role for the intelligent
decision making process. Ubiquitous
computing and communication (UCC) are
characterized by the invisibility of
objects, proactive context-awareness
and adaptation, mobility and
ubiquitous sensor network. This is
currently very hot research area, and
there have been lots of research
works going on throughout the world.
The ubiquitous environment requires a
new paradigm of management which may
include ubiquitous interface
management, surrounding context
management, convergence management,
location management and power
management in addition to the
traditional network management
technologies. In this tutorial, we
introduce the current research issues
and efforts of the management of UCC.
In particular, we focus on the
management of ubiquitous sensor
network (USN), introducing the
requirements of the USN management,
and describing the management
architecture and management
functional areas. In addition to
these technical issues, the issues
related to security and standard will
be also discussed.
Jong-Tae Park is a professor
of the School of Electrical
Engineering and Computer Science at
Kyungpook National University, Korea.
He received the Ph.D. degree in
Computer Science and Engineering from
the University of Michigan and
previously worked at AT&T Bell Labs
in the United States. He has founded
the Committee of Korean Network
Operations and Management (KNOM) in
the Korean Institute of Communication
Sciences and was one of the founding
members of Asia-Pacific Symposium on
Network Operations and Management (APNOMS).
He served as a chair of the Technical
Committee of Information
Infrastructure of IEEE Communication
Society. He is currently on the
editorial board of International
Journal on Network and Systems
Management, China Communications, and
a standing committee member for
APNOMS. He was a general chair for
APNOMS97, a general chair for ICC
2002 Symposium and a co-chair for
Globecom2002 Symposium on Global
Service Portability and
Infrastructure. He has also served as
a committee member or advisory board
member for IEEE/IFIP NOMS and IM. He
has published more than 100 journals
and articles in the areas of computer
communication networks, network
management, and distributed systems.
His current research interests
include issues related to the control
and management of next generation
information networks including MPLS/GMPLS,
4G and ubiquitous sensor networks. He
is also interested in the development
of real-time location system using
active RFID technology, and mobile
RFID middleware, and the wireless
multimedia Internet applications. He
is an IEEE senior member.
|
|
T20
● |
Wireless Mesh Networks |
|
Date and Time: Thursday, 15 June,
13:30–17:00
Instructor: Prof. Prasant Mohapatra,
USA
Abstract:
WIreless MEsh NETworks (WIMENETs) are
composed of several wireless routers
that provide multihop communication
paths between wireless clients as
well as facilitate connection to the
wide area network and the Internet.
The wireless routers are mostly
stationary while the client nodes may
be stationary or mobile. WIMENETs can
be used as a very low-cost local area
network because of the avoidance of
the installation costs of wired
infrastructure. These networks will
not only be useful for applications
that are supported by wireless local
area networks or mobile ad hoc
networks, but also will have scope
for usage in providing Internet
access to various community networks,
enterprise networks, and home
networks. WIMENETs can be deployed
strategically or in an ad hoc manner.
Recently, WIMENETs have become a very
active area of research, which is
being pursued by both academia and
industry. Several test-bed and
experimental deployments are already
in place. The low cost of deployment
makes it very attractive in the
commercial arena. Considering the
interests and activities in the areas
of WIMENETs, it may be useful to
grasp an in-depth view of these
networks in terms of their
organization, applications,
protocols, and unsolved problems.
This tutorial will provide a
comprehensive study of various issues
in WIMENETs
Prof. Prasant Mohapatra
received his Ph.D. in computer
engineering from the Pennsylvania
State University in 1993. He was an
assistant professor and then an
associate professor at Iowa State
University from 1993 to 1999, and
then at Michigan State University
till 2001. Since then he has been at
University of California, Davis,
where he is currently a Professor in
the Department of Computer Science.
Dr. Mohapatra has published
extensively in various international
journals and conferences. He has been
an invited speaker at several
universities and other organizations
in several countries. He has given
several tutorials in various
international venues, and has taught
several advanced courses in computer
networks, wireless networks,
performance evaluation, and
multimedia systems. His research work
has been funded and collaborated by
National Science Foundation, SIEMENS,
EMC Corporation, Panasonic
Technologies, Hewlett Packard,
Rockwell International, and Intel
Corporation.
He was/is on the editorial board of
the IEEE Transactions on computers,
ACM WINET, and Ad Hoc Networks. He
has been on the program /
organizational committees of several
international conferences. He was the
Program Vice-Chair of INFOCOM 2004
and MASS 2004, and the Program
Co-Chair of the First IEEE
International Conference on Sensor
and Ad Hoc Communications and
Networks (SECON 2004). He is also the
Co-Chair of the First IEEE Workshop
on Wireless Mesh (WiMesh 2005). He
has been a Guest Editor for IEEE
Network, IEEE Transactions on Mobile
Computing, and the IEEE Computer.
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T21
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Optical Burst Switching - A Tutorial
from e-Photon/ONe |
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Date and Time: Thursday, 15 June,
13:30–17:00
Instructors:
Prof. Nail Akar, Bilkent University, Turkey
Prof. Ezhan Karasan, Bilkent University,
Turkey
Abstract:
With recent advances in WDM
technology, the amount of bandwidth
available on a single fiber has
dramatically increased. However,
today’s electronically packet-
switched backbones cannot fully use
this bandwidth due to the electronics
bottleneck at the routers and
switches. One method to overcome this
bottleneck is to move to optical
circuit switching based on wavelength
routing for which an
optically-switched wavelength path is
established between a source and
destination at the expense of reduced
statistical multiplexing gains.
Optical Burst Switching (OBS) has
recently been proposed as an
alternative and viable optical
switching technology, which is based
on burstification of data to cope
with current optical switching speeds
and also the concept of separation of
data and control planes, whereby data
is optically switched and control
plane remains electronical. This
tutorial is prepared to exhibit the
view of the European Network of
Excellence e-Photon/ONe as well as
the state-of-the-art research carried
out by the e-Photon/ONe researchers
on optical burst switching systems
and networks.
Dr. Nail Akar received his
B.S. degree from Middle East
Technical University, Turkey, in 1987
and M.S. and Ph.D. degrees from
Bilkent University, Turkey, in 1989
and 1994, respectively, all in
electrical and electronics
engineering. From 1994 to 1996, he
was a visiting scholar and a visiting
assistant professor in the Computer
Science Telecommunications program at
the University of Missouri-Kansas
City during which he focused on
performance evalation methodologies
for telecommunication networks and
queueing systems. In 1996, he joined
the Technology Planning and
Integration group at the Long
Distance Division, Sprint, where he
held a senior member of technical
staff position from 1999 to 2000.
While at Sprint, Dr. Akar’s research
concentrated on ATM, IP/MPLS, and
optical network infrastructures,
Quality of Service and virtual
private networking. In the same time
frame, Dr. Akar pursued several
research projects on ATM and IP
networking with Sprint’s research
partners including MIT, University of
Kansas and SRI. Since 2000, Dr. Akar
has been with Bilkent University,
Ankara, Turkey as an assistant
professor. He was the national
representative in the European COST
Action 279 “Analysis and design of
advanced multiservice networks
supporting mobility, multimedia, and
internetworking” which was recently
completed in Summer 2005. Dr. Akar is
also actively involved in the
Commission of the European Community
IST-FP6 NoEs (Network of Excellence)
E-Photon/One and NEWCOM. Dr. Akar’s
current research interests include
performance analysis of computer and
communication networks, design,
engineering, and analysis of optical
burst/packet switching systems and
networks, network control and dynamic
resource allocation, and multimedia
networking.
Dr. Ezhan Karasan received
B.S. degree from Middle East
Technical University, Ankara, Turkey,
M.S. degree from Bilkent University,
Ankara, Turkey, and Ph.D. degree from
Rutgers University, Piscataway, New
Jersey, USA, all in electrical
engineering, in 1987, 1990, and 1995,
respectively. During 1995-1996, he
was a post-doctorate researcher at
Bell Labs, Holmdel, New Jersey, USA.
From 1996 to 1998, he was a Senior
Technical Staff Member in the
Lightwave Networks Research
Department at AT&T Labs-Research, Red
Bank, New Jersey, USA. He has been
with the Department of Electrical and
Electronics Engineering at Bilkent
University since 1998, where he is
currently an associate professor.
During 1995-1998, he worked in the
Long Distance Architecture task of
the Multiwavelength Optical
Networking Project (MONET), sponsored
by DARPA. Dr. Karasan is currently
the Bilkent team leader of the
FP6-IST Network of Excellence (NoE)
project e-Photon/ONe (2004-2006) and
he also participates in FP6-IST NoE
Newcom (2004-2006) as a researcher.
He was also a member of the European
COST 279 action “Analysis and Design
of Advanced Multiservice Networks
supporting Mobility, Multimedia, and
Internetworking” (2001-2005). Dr.
Karasan is a member of the Editorial
Board of Optical Switching and
Networking journal. He is the
recipient of 2004 Young Scientist
Award from Turkish Scientific and
Technical Research Council (TUBITAK).
He also received a Career Grant from
TUBITAK in 2004. Dr. Karasan received
a fellowship from NATO Science
Scholarship Program for overseas
studies in 1991-94. His current
research interests are in the
application of optimization and
performance analysis tools for the
design, engineering and analysis of
optical networks and wireless ad
hoc/sensor networks.
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