A Novel Nonlinear MMSE Precoding Detection Algorithm for VBLAST in MIMO-MC-CDMA Downlink System

摘要：

In this paper, considering the error propagation effect and high complexity of spatial multiplexing based vertical bell labs layered space time(VBLAST), a novel nonlinear MMSE-THP algorithm for VBLAST in MIMO-MC-CDMA downlink system is proposed in this paper. In the proposed algorithm, the nonlinear THP precoding is used between the sub-carrier channels of the MC-CDMA to eliminate interference from other signals at the transmitter so as to obtain frequency diversity gain and effectively eliminate the error propagation effect of layered space-time codes. At the receiver, minimum mean square error criterion is used and the complexity of the receiver is reduced. Simulation results show that the proposed algorithm is superior to the traditional minimum mean square error algorithm and the linear precoding algorithm.

关键词： MIMO MC-CDMA VBLAST THP MMSE

作者: Hongliang Fu Tiejun Yang Yong Tao Chao Fan

作者单位: Institute of Information Science and Engineering, Henan University of Technology, Zhengzhou, China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 1463-1466

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）