Blind cancellation for frequency offset in OFDM system based on MCMA-RLS algorithm  

作　　者：Guan Qingyang Zhao Honglin Guo Qing 

机构地区：[1]Communication Research Center, Harbin Institute of Technology, Harbin 150001, P. R. China

出　　处：《High Technology Letters》2011年第4期366-370,共5页高技术通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China （No. 60532030）.

摘　　要：Modified constant modulus and recursive least squares （MCMA-RLS） algorithm is proposed to cancel interference caused by the variable frequency offset （FO） in the orthogonal frequency division multiplexing （OFDM） system. The MCMA-RLS algorithm is composed of two stages including MCMA scheme and RLS scheme. MCMA is selected to pre-cancel the variable frequency offset firstly, and then the residual interference has been canceled by the RLS scheme. BR error rate is simulated to demonstrate that the proposed method is robust for canceling the variable frequency offset.

关 键 词：orthogonal frequency division multiplexing （OFDM） fxequency offset （FO） modified constantmodulus algorithm （MCMA） reeursive least squares （RLS） 

分 类 号：TN929.5[电子电信—通信与信息系统] TN911.72[电子电信—信息与通信工程]