Title :
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
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;
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
DOI :
10.1109/WCSP.2010.5633082
