[CPCC] CPCC Talk: Prof. Rick Wesel Feb 7 ET *331*

Ender Ayanoglu ayanoglu@uci.edu
Tue Feb 4 10:03:01 2003


			         CPCC TALK

	       UNIVERSAL CODE DESIGN FOR BROADCAST CHANNELS

 		          Prof.  Richard Wesel
		           UCLA EE Department

		         Friday, February 7, 2003
				  11 AM
			   Engineering Tower 331
				 UC Irvine


				Abstract

For broadcast applications, the transmitted signal should be correctly
decoded by as many receivers as possible.  In this context, the most
desirable code is a "universal" code that allows transmission over every
channel (for a fixed transmitter power spectrum) where the attempted rate is
possible with a single-user code developed specifically for that channel.

Long established results from information theory establish that universal
codes do indeed exist.  This talk presents a series of results that describe
how these theoretical limits may be practically achieved today. Specifically,
the topics are as follows:

1. Universal Space-Time Trellis Codes
2. Serial Concatenated Codes as Universal Codes for Periodic Erasures
3. LDPC codes as Universal Codes for Periodic Erasures and for OFDM

Biography of the Speaker:

Richard D. Wesel received both B.S. and M.S. degrees in electrical
engineering from MIT in 1989 and the Ph.D. degree in electrical engineering
from Stanford University in 1996.  Since 1996 he has been with UCLA,
originally as an Assistant Professor in the Electrical Engineering
Department.  In July 2002 he became an Associate Professor.  His research is
in the area of communication theory with particular interest in the topics
of channel coding and distributed communication.  In 1998 he was awarded a
National Science Foundation CAREER Award to pursue research on robust and
rate-compatible coded modulation.  He received an Okawa Foundation award in
1999 for research in information and telecommunications, and he received the
2000 TRW Outstanding Young Teacher Award from the UCLA School of Engineering
and Applied Science.  In 2001, he became a Senior Member of the IEEE. In
2002 he was selected to participate in the National Academy of Engineering
Frontiers in Engineering Symposium.  Since 1999 he has been an associate
editor for the IEEE Transactions on Communications in the area of coding and
coded modulation.  Dr. Wesel has published over 60 conference and journal
publications, a book chapter on error correction codes and an encyclopedia
article on convolutional codes.  He holds four patents.