An Adaptive Channel Estimation Technique in MIMO OFDM Systems

作     者：Pei-Sheng Pan Bao-Yu Zheng 

作者机构：School of Communication ＆ Information Engineering University of Nanjing University of Posts and Telecommunications Nanjing 210003 China 

出 版 物：《Journal of Electronic Science and Technology of China》 (中国电子科技（英文版）)

年 卷 期：2008年第6卷第3期

页      面：313-316页

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统] 070201[理学-理论物理] 0702[理学-物理学] 

基　　金：the National Nature Science Foundation ofChina under Grant No. 60372107 

主　　题：Adaptive frequency domain MIMO squares. channel estimation OFDM recursive least 

摘      要：In this paper, an adaptive channel estimation for MIMO OFDM is proposed. A set of pilot tones first are placed in each OFDM block, then the channel frequency response of these pilot tones are adaptively estimated by reeursive least squares （RLS） directly in frequency domain not in time domain. Then after the estimation of the channel frequency response of pilot tones, to obtain the channel frequency response of data tones, a new interpolation method based on DFT different from traditional linear interpolation method according to adjacent pilot tones is proposed. Simulation results show good performance of the technique.