Multi-mode Precoding for Correlated MIMO Channels with Minimum BER Selection Criterion

Author

Cheng, Jinxia ; Yao, Yan ; Zhou, Shidong

Author_Institution

Dept. of Electron. Eng., Tsinghua Univ., Beijing

Volume

3

fYear

2006

fDate

7-10 May 2006

Firstpage

1392

Lastpage

1395

Abstract

We propose a robust multi-mode linear precoder based on minimum bit error rate (MBER) selection criterion for multi-input-multi-output (MIMO) systems when transmitter only acquires the fading correlations of antennas. The key point of the scheme is that the number of substreams and modulation mode change adaptively to minimize the mean of BER by using channel correlation matrix. In addition, we analyze two special cases with very high or low correlation coefficients. Simulation results state that the proposed scheme selects the most powerful spatial mode and improves the system performance significantly

Keywords

MIMO systems; antenna arrays; channel coding; error statistics; fading channels; linear codes; matrix algebra; precoding; BER; antennas; channel correlation matrix; correlated MIMO channels; fading correlations; linear precoder; minimum bit error rate; multiinput multioutput systems; multimode precoding; transmitter; Bit error rate; Covariance matrix; MIMO; Receiving antennas; Symmetric matrices; System performance; Transmitters; Transmitting antennas; Vectors; Wireless communication; MIMO; fading correlation; linear precoder; linear receiver; minimum bit error rate; mode selection;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd

Conference_Location

Melbourne, Vic.

ISSN

1550-2252

Print_ISBN

0-7803-9391-0

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2006.1683063

Filename

1683063