A Successive Iterative Optimal Precoding Algorithm for Downlink Multi-user MIMO System
Spatial multiplexing in the multi-user MIMO (MUMIMO) 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 optimal algorithm based on signal-toleakage- and-noise-ratio (SLNR) maximization algorithm proposed recently, which make use of the unused subspace of some known users to improve the space gain of the other users and has no strict constraint on transmit and receive antennas numbers. According to the simulation results, the proposed algorithm outperforms the original SLNR algorithm and have a considerable improvement in the system performance.
BD GEVD MU-MIMO signal-to-leakege-andnoiseratio(SLNR) SVD
Xian-kun Gao Jian-hua Qu Chuan-an Yao Xin-sheng Yao Ji-lai Ying
College of Mechanical and Electrical EngineeringHenan Agricultural UniversityZhenzhou 450002, P.R.Ch College of Mechanical and Electrical Engineering Henan Agricultural University Zhenzhou 450002, P.R.
国际会议
哈尔滨
英文
127-131
2011-01-18（万方平台首次上网日期，不代表论文的发表时间）