Channel estimation in space and frequency domain for MIMO-OFDM systems  

作　　者：PAN Pei-sheng,ZHENG Bao-yu College of Communication and Information,Nanjing University of Posts and Telecommunications,Nanjing 210003,China 

出　　处：《The Journal of China Universities of Posts and Telecommunications》2009年第3期40-44,共5页中国邮电高校学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(60372107)

摘　　要：Multiple-input multiple-output （MIMO） systems can be combined with orthogonal frequency division multiplexing （OFDM） systems to improve the capacity and quality of wireless communications. In this article, a channel estimation technique in both space and frequency domain for MIMO-OFDM systems is proposed. It is shown that the proposed scheme with space-frequency pilot tones achieve optimal minimum mean square error （MMSE） channel estimation. Simulation results indicate that the proposed method achieves good performance.Multiple-input multiple-output （MIMO） systems can be combined with orthogonal frequency division multiplexing （OFDM） systems to improve the capacity and quality of wireless communications. In this article, a channel estimation technique in both space and frequency domain for MIMO-OFDM systems is proposed. It is shown that the proposed scheme with space-frequency pilot tones achieve optimal minimum mean square error （MMSE） channel estimation. Simulation results indicate that the proposed method achieves good performance.

关 键 词：channel estimation MIMO OFDM space frequency pilot tones 

分 类 号：TN919.3[电子电信—通信与信息系统]