Tutorials |
The tutorials will be held on February, 25th, with the following
schedule:
Morning (8.30 - 12.30)
Afternoon (14.30 - 18.30)
Bijan Jabbari,
George Mason University, Fairfax, Virginia, USA
bjabbari@osf1.gmu.edu
Tutorial Description
Extending the wireless mobile networking to provision Internet services requires rethinking the present architecture and node functionality. To be efficient, packet radio technology in the form of multi-hop and features like self organizing and high capacity are almost unavoidable while dealing with problems of interference, multi-path fading and limited bandwidth. To make it viable, the architecture has to realistically address scalability, reliability, and quality of service. This tutorial will review the packet radio and how it is used in Ad-hoc networks. We will discuss aspects such as capacity enhancement, self-organization, resource allocation, and adaptive routing. We will classify and present the methods by which the system capacity of such networks can be increased. We will subsequently focus on wireless multi-hop networks overlaid with cellular structure and consider methods at the physical, link and network layer and show how coordination among layers enable significant improvements in capacity and quality of service. We show how the conserved power, achieved through multi-hop operation, can be traded off for capacity advantage. Finally, we present the effect of traffic dynamics on system capacity and ways to achieve the maximum throughput.
Dr. Bijan Jabbari biography
Bijan Jabbari, received the Ph.D. degree from Stanford University, Stanford, California, in 1981, in electrical engineering. He has held positions with Hewlett Packard, Southern Illinois University Satellite Business Systems, and M/A-COM Telecommunications. In 1988, he joined the faculty of the department of electrical and computer engineering at George Mason University where he is now a professor. He is also an affiliated faculty with ENST- Paris, France. He is Editor for Wireless Multiple Access for the IEEE Transactions on Communications and is on the editorial board of Proceedings of the IEEE and other journals. He has served as guest editor for Proceedings of the IEEE, IEEE JSAC, and IEEE Communications Magazine. He is a coeditor of recent books on Multiaccess, Mobility and Teletraffic (Kluwer Publishing, Volume I, IV, and V) and continues research on multiaccess and wireless communications, mobility and traffic theory, and packet networks. He is the past Chairman of the IEEE Communications Society technical committee on Communications Switching and Routing. In 1999, he founded the Advanced Internet Laboratory at George Mason University, through industry research grants and support of the Internet industry. He received the IEEE Millennium Medal in 2000. Dr. Jabbari is on the advisory board of several communications companies and serves as a consultant to government and industry.
Eduardo Esteves
Corporate R&D Qualcomm Inc.
eesteves@qualcomm.com
Tutorial description
The objective is to provide participants with the knowledge of the technical aspects of the cdma2000 high rate packet data air interface (a.k.a. 1xEV-DO or IS-856). The standard was published by the 3GPP2 organization in October 2000 and recently approved as part of the IMT-2000 specifications. Several concepts introduced in 1xEV-DO are being considered as the basis for future enhancements of other 3G standards, e.g. HSDPA proposal for WCDMA. Thus, a good understanding of the underlying concepts in 1xEV-DO, including the most important design details and performance analyses might be invaluable for those working with 1xEV-DO and, in general, in the area of high-speed wireless packet data systems. Participants will be exposed not only to the basic concepts of the 1xEV-DO system but also to the details of the physical and MAC layers. In addition, a selection of both simulation and field data will be used to provide detailed overview of the performance and tradeoffs of the 1xEV-DO system.
Dr. Eduardo Esteves biography
Dr. Eduardo Esteves has over 11 years of experience in design and implementation of wireless communication systems, including both satellite and cellular systems. He joined Qualcomm R&D department in 1997 and worked on the design and implementation of the high data rate (HDR) packet data system, which was the base for the 1xEV-DO system. Dr. Esteves was the systems lead for the development of Qualcomm’s cell-site modem (CSM5500) ASIC that supports the 1xEV-DO standard. He was also a significant contributor to 1xEV-DO standardization process within 3GPP2 organization. Dr. Esteves graduated with a Ph.D. degree in Electrical Engineering from the University of Southern California.
Marco Luise,
University of Pisa, Italy
marco.luise@iet.unipi.it
Tutorial Description
This tutorial touches upon the main points in the design of modern radio interfaces for wireless systems. Starting from the basis of wideband modulation, namely, spread-spectrum signalling, it develops thorugh a short description of Code-Division Multiple Access (CDMA) techniques and its application to third-generation (3G) systems like UMTS and CDMA2000. The tutorial enrolls then through the description of the most effective signal formats to deal with severely fequency-selective transmission channels: MultiCarrier Modulation (MCM). The two most popular version of MCM, namely, Orthogonal Frequency Division Multiplexing (OFDM) and Discrete MultiTone modulation (DMT) are presented, and their respective application fields (terrestrial television broadcasting and twisted-pair high-speed transmission) are also discussed. The final topic in the tutorial is the presentation of what is considered the most promising candidate for 4G radio interfaces: multicarrier spread-spectrum, which comes out of a perfect marriage between the (previously discussed) most efficient 3G technologies.
Prof. Marco Luise biography
Marco Luise is a Full Professor of Telecommunications at the University of Pisa, Italy. He was born in Livorno, Italy, in 1960 and received his MD and PhD degrees in Electronic Engineering from the University of Pisa, Italy. In the past, he was a Research Fellow of the European Space Agency (ESA) at the European Space Research and Technology Centre (ESTEC), Noordwijk, The Netherlands, and a Research Scientist of CNR, the Italian National Research Council, at the Centro Studio Metodi Dispositivi Radiotrasmissioni (CSMDR), Pisa. Prof. Luise co-chaired four editions of the Tyrrhenian International Workshop on Digital Communications, and in 1998 was the General Chairman of the URSI Symposium ISSSE'98. He's currently Technical Co-Chairman of the 7th International Workshop on Digital Signal Processing Techniques for Space Communications and of the Conference European Wireless 2002. A Senior Member of the IEEE, he served as Editor for Synchronization of the IEEE Transactions on Communications, and is currently Editor for Communications Theory of the European Transactions on Telecommunications. His main research interests lie in the broad area of wireless communications, with particular emphasis on CDMA systems
Bernhard H. Walke
Communication Networks, Aachen University of Technology (RWTH)
walke@comnets.rwth-aachen.de
Tutorial Description
The tutorial describes the current status of development of broadband WLANs
IEEE 802.11a, taking into account the recent developments that would allow to support quality of services
HiperLAN/2, including the Home Environment extension option and wireless Access Points.
Ad-Hoc broadband networking with quality of service support under a completely decentralized control.
Besides a description of the layers 1 to 3, results of the
traffic performance evaluation will be presented based on emulation of the WLANs
under realistic traffic load to make transparent the strengths and weaknesses of
the designs. The intention is also to present the actual status of
standardization in the IEEE 802.11e group.
Prof. Dr.-Ing. Bernhard H. Walke biography
Professor Walke (1940) received his Diploma and doctor's
degree in Electrical and Communications Engineering in 1965 and 1975, both from
the University of Stuttgart, Germany.
From 1965 to 1983 he worked as a researcher and department head in various
industrial companies, where he designed computer based communications networks
and evaluated their traffic performance.
In 1983 he joined the Department of Electronics Engineering, Fern University of
Hagen as a full professor for Computer Architecture. In 1990 he moved to Aachen
University of Technology (RWTH) as a full professor for Communication Networks.
Current research covers air-interface design, protocols, stochastic performance
simulation and services of second to fourth generation wireless systems.
His research group counts about 40 full-time scientists, mainly funded by third
parties. His scientific work comprises about 95 scientific papers and six
textbooks, on architecture, modeling and performance evaluation of computer and
communication networks. The latest two book are Mobile Radio Networks, 2nd
Edition, Wiley & Sons, New York 2001 and UMTS – A training course,
Schlembach Verlag 2001, Weil der Stadt, Germany.
Prof. Walke is member of ITG/VDE, GI and Senior Member of IEEE. He has served as
programme committee chairman of many European conferences like EPMCC and EW.
Currently he is responsible as a scientific chair for the areas Spectrum Issues,
New Air Interfaces and Ad-Hoc Networking in the Wireless World Research Forum.