EM based Joint Channel Estimation and Signal Detection for V-BLAST in MIMO OFDM Systems

摘要：

Perfect channel estimation is crucial to the detection of the V-BLAST(Vertical Bell Laboratories Layered Space-Time). The performance of V-BLAST will degrade dramatically when there exists large channel estimation error. Conventionally, the channel estimation is processed independently from the V-BLAST signal processing. In this paper, we propose an EM based algorithm to detect the transmitted V-BLAST structured signals in MIMO OFDM systems while estimate the channel impulse response (CIR) iteratively. Simulation results show that compared with conventional channel estimation methods, this algorithm is bandwidth efficient and has better performance in fast fading multi-path channels.1

作者: Bowei Song Wenjun Zhang Lin Gui

作者单位: Institute of Image Communication and Information Processing Shanghai Jiao Tong University Shanghai, China

会议类型: 国际会议

会议名称: 2005年无线通信、网络和移动计算国际会议

会议地点: 武汉

会议语种:英文

页码: 135-138

在线出版日期: 2005-09-23（万方平台首次上网日期，不代表论文的发表时间）