A New Iterative Channel Estimation Scheme for V-BLAST MIMO-OFDM Systems

摘要：

A new iterative channel estimation scheme for V-BLASt MIMO-OFDM systems is proposed in this paper. The channel estimation consists of two parts. Firstly, we use pilot-symbol-aided (PSA) method to interpolate the channel, and get the initial channel estimation of the systems. Then, with Turbo iterative decoding, we feedback the information bits to the channel estimator and the EM algorithm is used for iterative channel estimation. The simulation results show that the channel estimation performance of the systems is improved greatly as the number of iterations increases.

关键词： channel estimation Turbo iterative decoding EM algorithm MIMO-OFDM

作者: Xiaoqiang Qiao Hangsheng Zhao Yusheng Li Yongxiang Liu

作者单位: Nanjing Telecommunication Technology Institute Nanjing, 210007, China Nanjing Telecommunication Technology Institute Nanjing,210007, China

会议类型: 国际会议

会议名称: The International Conference on Communication Software and Networks(2009 IEEE通信软件与网络国际会议 ICCSN 2009)

会议地点: 成都

会议语种:英文

页码: 48-52

在线出版日期: 2009-02-20（万方平台首次上网日期，不代表论文的发表时间）