It is long known that multiple receive antennas at the base-station is useful in providing diversity against fading effects. Recently, it has been shown that much more performance gain can be obtained by having multiple transmit AND receive antennas. However, this assumes that the channel can be estimated accurately at the receiver. With more antenna pairs, channel estimation becomes more difficult. We are studying the impact of channel uncertainty on performance as well as devising communication and signal processing techniques which can reap much of the performance gain despite the uncertainty about the channel.
Current research focuses on the use of measurements in networks.
I am also a member of the Berkeley Wireless Research Center. Publications and presentations Research Group Raul Etkin, Kiran , Ada Poon, Xia Ye, Lizhong Zheng. David Tse received the B.A.Sc. degree in systems design engineering from University of Waterloo, Canada, in 1989, and the M.S. and Ph.D. degrees in electrical engineering from Massachusetts Institute of Technology in 1991 and 1994 respectively. Since 1995, he has been at the Department of Electrical Engineering and Computer Sciences in the University of California at Berkeley, where he is currently an Associate Professor. His research interests are in information theory, wireless communications and networking.