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Optimal diagonal precoder for multi-antenna communication system

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3 Author(s)
Zhiyong Yan ; Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont., Canada ; Kon Max Wong ; Zhi-Quan Luo

We develop an efficient diagonal matrix precoder which minimizes the lower bound of the average bit error rate (BER) for a multi-antenna wireless communication system with a QR receiver in flat fading channel. The precoder also minimizes the average block error rate at the same time. It provides substantially lower error rates than the MMSE precoder and G.J. Foschini's BLAST scheme (see Bell Labs Tech. J., p.41-59, 1996). The corresponding signal-to-noise ratio (SNR) gains can be several decibels.

Published in:

Signal Processing Advances in Wireless Communications, 2003. SPAWC 2003. 4th IEEE Workshop on

Date of Conference:

15-18 June 2003