ICWS Seminar
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Coalitions and Incentives in Cognitive Radio Networks

Prof. Narayan Mandayam
WINLAB
Rutgers University




Abstract: Recent advances in programmable integrated circuits have
created a new class of intelligent or "cognitive" radios capable of
dynamic physical layer adaptation via scanning of available spectrum,
selection from a wide range of operating frequencies (possibly
non-contiguous), rapid adjustment of modulation waveforms and
adaptive power control.  In addition, a suitably designed cognitive
radio with a software-defined physical layer would be capable of
collaborating with neighboring radios to ameliorate interference
using higher-layer protocols.  Perhaps for the first time in the
short history of networking, cognitive radios offer the potential for
organic formation of "infrastructure-less" collaborative network
clusters with dynamic adaptation at every layer of the protocol stack
including physical, link and network layers. While the development of
cognitive radio hardware and software, especially at the physical
layer, has received considerable attention, the question of how one
transforms a set of cognitive radios into a cognitive network is much
less well understood. This talk will present an overview of cognitive
radio network research with specific emphasis on coalition formation
and incentive mechanisms for collaborative and cooperative
communications. The implications of such cognitive radio networks to
spectrum policy as well as the design of the future internet will
also be highlighted.

Biography: Narayan Mandayam received the B.Tech (Hons.) degree in
1989 from the Indian Institute of Technology, Kharagpur, and the M.S.
and Ph.D. degrees in 1991 and 1994 from Rice University, Houston, TX,
all in electrical engineering. From 1994 to 1996, he was a Research
Associate at the Wireless Information Network Laboratory (WINLAB),
Rutgers University. In September 1996, he joined the faculty of the
ECE department at Rutgers where he became Associate Professor in 2001
and Professor in 2003. Currently, he also serves as Associate
Director at WINLAB. He was a visiting faculty fellow in the
Department of Electrical Engineering, Princeton University in Fall
2002 and a visiting faculty at the Indian Institute of Science in
Spring 2003. His research interests are in various aspects of
wireless data transmission including system modeling and performance,
signal processing and radio resource management with emphasis on
techniques for cognitive radio technologies.  

Dr. Mandayam is a recipient of the Institute Silver Medal from the
Indian Institute of Technology, Kharagpur in 1989 and the National
Science Foundation CAREER Award in 1998. He is a coauthor with C.
Comaniciu and H. V. Poor of the book "Wireless Networks: Multiuser
Detection in Cross-Layer Design," Springer, NY. He has served as an
Editor for the journals IEEE Communication Letters (1999-2002) and 
IEEE Transactions on Wireless Communications (2002-2004). He has
served as a guest editor of the 2007 IEEE JSAC Special Issue on
Adaptive, Spectrum Agile and Cognitive Radio Networks. He is also
serving as a guest editor of the upcoming IEEE JSAC Special Issue on
Game Theory in Communication Systems.

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ICWS Seminar Series is supported by a grant from Rockwell Collins