Optimal diagonal precoder for multi-antenna communication system

Author

Yan, Zhiyong ; Wong, Kon Max ; Luo, Zhi-Quan

Author_Institution

Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont., Canada

fYear

2003

fDate

15-18 June 2003

Firstpage

16

Lastpage

20

Abstract

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.

Keywords

encoding; error statistics; fading channels; matrix algebra; minimisation; phase shift keying; radio receivers; BER; BLAST scheme; BPSK signal; MMSE precoder; QR receiver; SNR; bit error rate; block error rate; diagonal matrix precoder; diagonal precoder; flat fading channel; lower bound minimization; multi-antenna communication system; signal-to-noise ratio; Bit error rate; Delay; Error analysis; Fading; Maximum likelihood detection; Receiving antennas; Signal to noise ratio; Transmitters; Transmitting antennas; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

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

Print_ISBN

0-7803-7858-X

Type

conf

DOI

10.1109/SPAWC.2003.1318913

Filename

1318913