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Optimal transceiver design for selective wireless broadcast with channel state information

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3 Author(s)
Zhang, Jianzhong ; Dept. of ECE; University of Wisconsin at Madison, 1415 Engineering Dr.; 53706, USA ; Sayeed, A. ; van Veen, B.

Selective broadcast schemes for point-to-multiple point transmission of identical information are studied for a CDMA wireless system. The channel states for all selected users are assumed known at both the transmitter and the receivers. The goal is to find signaling schemes that satisfy the received SNR requirement at all desired users while minimizing total transmit power. We solve for the optimal transmit signature code and receive filters by developing Iterative Least Distance Programming (ILDP) and Linear Programming (LP) algorithms. We show that the optimal selective broadcast scheme is more power efficient than simple broadcast schemes and is robust against modest channel estimate delays.

Published in:

Acoustics, Speech, and Signal Processing (ICASSP), 2002 IEEE International Conference on  (Volume:3 )

Date of Conference:

13-17 May 2002