计算机应用研究2011，Vol.28Issue(4)：1509-1511,3.DOI:10.3969/j.issn.1001-3695.2011.04.085
基于非线性预编码的多载波分层空时检测方法
Research of detection for multi-carrier spatial multiplexing systems based on nonlinear precoding
摘要
Abstract
Considering the error propagation effect and high complexity of vertical Bell Labs layered space time, proposed a novel detection method for multi-carrier spatial multiplexing systems based on nonlinear precoding. Used the geometric mean decomposition method for the channel precoding matrix which had the same equivalent noise gain among each sub-channel,and used the nonlinear module algebra THP precoding between sub-carrier channels of MC-CDMA to eliminate interference from other signals at the transmitter. This could effectively eliminate the error propagation effect of layered space-time codes.At the receiver, used ZF and MMSE criterion and the complexity of the downlink receiver could be reduced. Simulation results show that the proposed algorithm is better than the traditional algorithm in the BER.关键词
多载波/垂直分层空时码/非线性预编码/几何均值分解Key words
multi-carrier/ vertical Bell Labs layered space time(VBLAST)/ nonlinear precoding/ geometric mean decomposition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..基于非线性预编码的多载波分层空时检测方法[J].计算机应用研究,2011,28(4):1509-1511,3.基金项目
国家自然科学基金资助项目(60940017) （60940017）
河南省科技创新杰出青年基金资助项目(104100510008) （104100510008）
