Blind Channel Estimation of MIMO-OFDM by Virtual Carriers

摘要：

Multiple-input multiple-output (MIMO)orthogonal frequency division multiplexing (OFDM)systems are attractive because of their large capacity and high data rate. The proposed method unifies and generalizes the existing subspace-based methods for blind channel estimation in single-input single-output OFDM systems to blind channel estimation. The proposed algorithm can be applied to MIMO-OFDM systems with insufficient CP or no CP. Furthermore, in the case of MIMO system, it exits an ambiguity matrix between the estimated channel coefficient matrix and the true channel matrix. Using second-order blind source separation gets source signal. Simulation results illustrate the mean-square error performance of the proposed method via numerical experiments.

关键词： MIMO-OFDM Blind channel estimation,subspace ambiguity matrix BSS joint diagonalization

作者: Lei Yu Shenyuan Yang

作者单位: College of Information and Communication Engineering, Harbin Engineering University, Heilongjiang, China

会议类型: 国际会议

会议名称: 第三届信号设计及其在通信中的应用国际会议(Proceedings of 2007 International Workshop on Signal Design and Its Applications in Communications IWSDA07)

会议地点: 成都

会议语种:英文

页码: 299-302

在线出版日期: 2007-09-23（万方平台首次上网日期，不代表论文的发表时间）