A successive iterative optimization precoding method for downlink multi-user MIMO system

Author

Xiangchuan, Gao ; Xiong, Fei ; Song, Lei

Author_Institution

Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2010

fDate

21-23 Oct. 2010

Firstpage

1

Lastpage

5

Abstract

Spatial multiplexing in the multi-user MIMO (MU-MIMO) downlink allows each user in the system to receive multiple data subchannels simultaneously using the same time and spectral resources. In this paper, we have proposed a successive iterative optimization method based on signal-to-leakage-and-noise-ratio (SLNR) maximization algorithm proposed recently, which has no strict constraint on transmit and receive antennas numbers. According to the simulation results, the proposed method outperforms the original SLNR algorithm and have a considerable improvement in BER performance and system capacity.

Keywords

MIMO communication; error statistics; iterative methods; multiuser channels; optimisation; precoding; receiving antennas; space division multiplexing; transmitting antennas; BER performance; downlink multiuser MIMO system; iterative optimization precoding; maximization; multiple data subchannels; receive antennas; signal-to-leakage-and-noise-ratio; spatial multiplexing; spectral resources; transmit antennas; Downlink; Interference; Iterative methods; MIMO; Receiving antennas; Signal to noise ratio; Co-cAanneZ interference; GEVD; MU-MIMO; Signal-to-leakege-and-noise-ratio; Successive iterative interference suppression;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Signal Processing (WCSP), 2010 International Conference on

Conference_Location

Suzhou

Print_ISBN

978-1-4244-7556-8

Electronic_ISBN

978-1-4244-7554-4

Type

conf

DOI

10.1109/WCSP.2010.5633082

Filename

5633082