[CPCC] SEMINAR: Noisy Channel Estimates & System Performance 5/28 11 AM

[Ender Ayanoglu]

                               SEMINAR

 The Effects of Noisy Channel Estimates on System Performance

                       Prof. Laurence B. Milstein
                                UCSD

                            May 28, 2009
                              Thursday
                                11 AM
                        Engineering Tower 331

                               ABSTRACT

In this talk, we present various results on the effects of noisy
channel state information on the performance of various digital
communicatons systems. Our primary focus is on using the noisy
estimates for diversity combining, and we consider both single carrier
and multicarrier systems. Among the topics to be presented are
corrections to results in the literature that in some cases go back
more than forty years. For example, it has been reported in the
literature that with a coherent BPSK system with multiple independent,
identically distributed, diversity branches, if the pilot channel is
uncorrelated with the data channel, then the bit error rate varies
inverse linearly with average SNR. However, we show that the bit error
rate equals 0.5, independent of the number of diversity branches.


                         SPEAKER'S BIOGRAPHY

Laurence B. Milstein (S66, M68, SM77, F85) received the B.E.E. degree
from the City College of New York, New York, NY, in 1964, and the
M.S. and Ph.D. degrees in electrical engineering from the Polytechnic
Institute of Brooklyn, Brooklyn, NY, in 1966 and 1968, respectively.

>From 1968 to 1974, he was with the Space and Communications Group of
Hughes Aircraft Company, and from 1974 to 1976, he was a member of the
Department of Electrical and Systems Engineering, Rensselaer
Polytechnic Institute, Troy, NY. Since 1976, he has been with the
Department of Electrical and Computer Engineering, University of
California at San Diego, La Jolla, where he is the Ericsson Professor
of Wireless Communications and former Department Chairman, working in
the area of digital communication theory with special emphasis on
spread-spectrum communication systems. He has also been a consultant
to both government and industry in the areas of radar and
communications.

Dr. Milstein was an Associate Editor for Communication Theory for the
IEEE TRANSACTIONS ON COMMUNICATIONS, an Associate Editor for Book
Reviews for the IEEE TRANSACTIONS ON INFORMATION THEORY, an Associate
Technical Editor for the IEEE Communications Magazine, and the
Editor-in-Chief of the IEEE JOURNAL ON SELECTED AREAS IN
COMMUNICATIONS.  He was the Vice President for Technical Affairs in
1990 and 1991 of the IEEE Communications Society, and is a former
Chair of the IEEE Fellows Selection Committee. He is a recipient of
the 1998 Military Communications Conference Long Term Technical
Achievement Award, an Academic Senate 1999 UCSD Distinguished Teaching
Award, an IEEE Third Millennium Medal in 2000, the 2000 IEEE
Communication Society Armstrong Technical Achievement Award, and
various prize paper awards, including the 2002 MILCOM Fred Ellersick
Award.

Host: Hamid Jafarkhani