协同通信系统中基于EM算法的半盲信道估计与迭代检测

Semi-blind Channel Estimation and Turbo Detection for Cooperative Communication Based on the EM Algorithm

研究协同通信系统的信道估计和符号检测技术,提出一种基于EM(Expectation Maximum)算法的半盲信道估计和迭代检测接收方案。它有利于减少协同通信系统的额外系统开销,并能有效提高协同通信的信道估计精度和系统误码性能。

This paper focuses on the channel estimation and symbol detection techniques for cooperative communication. A semi-blind channel estimation and turbo detection receiver based on the EM algorithm is presented. The novel receive scheme is in favor of saving the significant additional system resources that are required for assigning cooperation partners. And it can also improve the performance of both channel estimation and symbol detection.