2008年清华大学信息技术研究院系列学术报告（12）

Laurence B. Milstein (S66M68SM77F85) 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 the 2002 MILCOM Fred Ellersick Award.

Abstract:

In this talk, we present some recent 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 uncorelated with the data channel, the bit error rate varies inverse linearly with average SNR. However, in our results, we show that the bit error rate equals 0.5, independent of the number of diversity branches.