收稿日期: 2014-07-25
修回日期: 2016-03-01
网络出版日期: 2016-05-30
基金资助
国家自然科学基金(No.61231017)资助
Improved Blind Channel Estimation for MIMO-OFDM Systems
Received date: 2014-07-25
Revised date: 2016-03-01
Online published: 2016-05-30
李国民, 刘鑫, 康晓非, 廖桂生 . MIMO-OFDM系统中一种改进的盲信道估计算法[J]. 应用科学学报, 2016 , 34(3) : 286 -292 . DOI: 10.3969/j.issn.0255-8297.2016.03.005
Channel estimation for MIMO-OFDM systems by linear precoding requires repeated calculation of ambiguity matrices. To solve the problem, a blind channel estimation algorithm is proposed. It unifies different channel ambiguity matrices by processing crosscorrelation matrices of received signal, and then estimates the channel using an iterative method. Simulation results show that the proposed algorithm has good mean square error performance and convergence, and less computational complexity compared with existing channel estimation methods based on linear precoding.
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