计算机工程与应用2011，Vol.47Issue(2)：88-90,130,4.DOI:10.3778/j.issn.1002-8331.2011.02.028
MIMO-MC-CDMA系统分层空时非线性预编码
Nonlinear precoding for VBLAST in MIMO-MC-CDMA systems.
摘要
Abstract
Considering the error propagation effect and high complexity of vertical bell labs layered space time codes,a novel nonlinear module algebra precoding algorithm based on QR decomposition for VBLAST in multi-user MIMO-MC-CDMA downlink system is proposed, QR decomposition is used for precoding matrix,the nonlinear module algebra THP precoding is used between sub-carrier channels of MC-CDMA to eliminate interference from other signals at the transmitter, and can eliminate the error propagation effect of layered space-time codes effectively. At the receiver, ZF and MMSE criterion are used for detection,and the complexity of the downlink receiver can be reduced. Simulation results show that the proposed algorithm is better than the traditional algorithms in the system BER performance.关键词
多输入多输出/多载波码分多址/垂直分层空时码/QR分解/模代数Key words
Multiple Input Multiple Output(MIMO)/Multi-Carrier Code Division Multiple Access(MC-CDMA)/vertical bell labs layered space time codes/QR decomposition/module algebra分类
信息技术与安全科学引用本文复制引用
傅洪亮,陶勇,张元..MIMO-MC-CDMA系统分层空时非线性预编码[J].计算机工程与应用,2011,47(2):88-90,130,4.基金项目
国家自然科学基金(the National Natural Science Foundation of China under Grant No.60940017) （the National Natural Science Foundation of China under Grant No.60940017）
河南省科技创新杰出青年基金(the Outstanding Youth Foundation of Henan Province under Grant No.104100510008). （the Outstanding Youth Foundation of Henan Province under Grant No.104100510008）
