Instructor:
Suhas Diggavi, Swiss Federal Institute of Technology (EPFL), Switzerland
Naofal Al-Dhahir, University of Texas at Dallas, USA
A. Robert Calderbank, Princeton University, USA

Abstract:
Great expectations start with the mobile terminal and the promise of 3G/4G data rates, real time IP services (including voice), and hours of useful battery life. The theme of this tutorial is the emerging design philosophy that builds an end­to­end perspective relating physical layer transmission strategies such as space­time codes to resource allocation in multiuser wireless networks, including connection to hybrid networks. Spatial diversity encompasses the use of multiple transmit/receive antennas and also the use of protocols that exploit the presence of multiple independent users. The philosophy of this tutorial is to utilize the presence of multiple randomness in both single­user and multiuser environments to advantage in signal transmission and resource allocation. The focus is on the impact of spatial diversity on various networking functionalities from physical layer transmission, to media access, resource allocation, connection to hybrid networks and applications. This cross­layer utility of spatial diversity plays a pivotal role in emerging wireless network design (such as the 3G/4G wireless cellular networks, 802.11 suite of wireless LAN systems, and adhoc wireless networks).

Instructor Bios:
Suhas N. Diggavi received the B. Tech degree in Electrical Engineering form the Indian Institute of Technology, Delhi, India and his Ph.D. degree in Electrical Engineering from Stanford University in 1998. During his graduate studies he held the Regent's Special Fellowship and also an Okawa Foundation Fellowship. From 1998 until July 2003 he was a Principal Member of the Technical Staff in the Information Sciences Center of AT&T Shannon Laboratories. There he conducted research on a wide variety of topics related to wireless networks. Since July 2003 he has been a member of the faculty of the Swiss Federal Institute of Technology (EPFL). There he heads the Laboratory for Information and Communication Systems (LICOS) within the school of Computer and Communication Sciences. His research interests include wireless networks, information theory, source coding, and signal processing. He has authored (or co-authored) over 50 refereed journal and conference publications, and has 6 patents (granted and pending). He also serves as the associated editor for the IEEE Communications Letters.

Naofal Al-Dhahir received his MSc and PhD degrees, in 1990 and 1994, respectively, from Stanford University, both in Electrical Engineering. He was a member of the technical staff in the Communications Program at General Electric Corporate Research and Development Center from August 1994 to July 1999 where he worked on various aspects of satellite communication system designs and anti-jam GPS receivers. From August 1999 to July 2003 he was a principal member of the technical staff at AT&T Shannon Laboratory , where he worked on space-time coding and signal processing. Currently he is an Associate Professor at UT Dallas where he directs   the Broadband Information Transmission & Signal processing (BITS) Laboratory. His current research interests include space-time coding and signal processing. OFDM, wireless networks, and DSL. He has authored 50 journal papers and holds 12 US patents. Dr. Al-Shahir is a Senior Member of the IEEE and has served as editor for the IEEE Transactions on Signal Processing and the IEEEE Communications Letters. He is currently an editor for the IEEE Transactions on Communications and co-chair for the Communicaton Theory Symposium at Globecom 2004. He is also co-author of the book Doppler Applications for LEO Satellite Systems, Kluwer 2001.

A. Robert Calderbank received the BSc degree in 1975 from Warwick University, the MSc degree in 1976 from Oxford University, and the Ph.D. degree in 1980 from the California Institute of Technology, all in mathematics. He joined the Bell Telephone Laboratories as a Member of the Technical Staff in 1980, and retired from AT&T in 2003 as Vice President of Research. He is currently a Visiting Scholar in the Program for Applied and Computational Mathematics at Princeton University. Dr. Calderbank has research interests that range from algebraic coding theory and quantum computing to the design of wireless systems. Dr. Calderbank served as Editor in Chief of the IEEE Transactions on Information Theory from 1995-1998, and as Associate Editor for Coding Techniques from 1986 to 1989. He was a member of the Board of Governors of the IEEE Information Theory Society from 1991 to 1996. Dr. Calderbank was honored by the IEEE Information Theory Prize Paper Award in 1995 for his work on the Z 4 linearity of Kerdoc and Preparata Codes (joint with A.R. Hammons Jr., P.V. Kumar, N.J.A Sloane, and P. Sole), and again in 1999 for his invention of space-time codes (joint with V. Tarokh and N. Seshadri). He is a recipient of the IEEE Millennium Medal, and was honored by AT&T's highest technical award in 2000 when he was appointed an AT&T Fellow.