Columbia University Joint CS/EE Networking Seminar Series


Cognitive Radio Networks: An Information Theoretic Perspective

Professor Shlomo Shamai

Chair in Communications, Technion - Israel Institute of Technology

Wednesday October 22, 11:00 AM-12:00 PM

Davis Auditorium



Abstract: The timely concept of cognitive radio networks will be reviewed, emphasizing the information theoretic viewpoint. Following a short introduction reviewing standard approaches, we focus on the information-theoretic paradigm, We examine simple models, under idealized assumptions, highlighting the impact of cognition and cooperation. Theoretical results and their implications are demonstrated by examining specific problems, namely: Generalized encoding schemes, accounting for the coding structure of the primary user; Simple outer bounds on rate regions; Capacity of the cognitive setting in the degraded message set case; Results for a class of Z-channels and Cognitive Wyner based cellular models. A short summary and an outlook conclude the overview. The technical contributions of collaborators in joint research on cognitive radio is gratefully acknowledged.

Bio: Shlomo Shamai (Shitz) received the B.Sc., M.Sc., and Ph.D. degrees in electrical engineering from the Technion - Israel Institute of Technology, in 1975, 1981 and 1986 respectively. During 1975-1985 he was with the Communications Research Labs, in the capacity of a Senior Research Engineer. Since 1986 he is with the Department of Electrical Engineering, Technion - Israel Institute of Technology, where he is now a Technion Distinguished Professor, and holds the William Fondiller Chair of Telecommunications. His research interests encompasses a wide spectrum of topics in information theory and statistical communications. Dr. Shamai (Shitz) is an IEEE Fellow, a member of the Israeli Academy of Sciences and Humanities and a foreign member of the US National Academy of Engineering. He is the recipient of the 2011 Claude E. Shannon Award and the 2014 Rothschild Prize in Mathematics/Computer Sciences and Engineering. He has been awarded the 1999 van der Pol Gold Medal of the Union Radio Scientifique Internationale (URSI), and is a co-recipient of the 2000 IEEE Donald G. Fink Prize Paper Award, the 2003, and the 2004 joint IT/COM societies paper award, the 2007 IEEE Information Theory Society Paper Award, the 2009 European Commission FP7, Network of Excellence in Wireless COMmunications (NEWCOM++) Best Paper Award, and 2014 EURASIP Best Paper Award (for the EURASIP Journal on Wireless Communications and Networking). He is also the recipient of the 2010 Thomson Reuters Award for International Excellence in Scientific Research and is listed in the 2014 Thomson Reuters "The World's Most Influential Scientific Minds".' He is also the recipient of 1985 Alon Grant for distinguished young scientists and the 2000 Technion Henry Taub Prize for Excellence in Research. He has served on the Executive Editorial Board of the IEEE Transactions on Information Theory and has also served as a Shannon Theory Associate Editor for this journal. He has served twice on the Board of Governors of the Information Theory Society.