MIMO OFDM system synchronization algorithms based on blind compensation of carrier frequency offset

Computer Engineering and Applications ›› 2008, Vol. 44 ›› Issue (12): 133-135.

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MIMO OFDM system synchronization algorithms based on blind compensation of carrier frequency offset

LI Guo-dong¹,FAN Yang-yu¹,WANG Yan-wen²

1．Electronic Information College，Northwestern Polytechnical University，Xi’an 710072，China
2．Xi’an Research Institution of ZTE Corporation，Xi’an 710065，China

Received:2007-08-07 Revised:2007-11-20 Online:2008-04-21 Published:2008-04-21
Contact: LI Guo-dong

基于载波频偏盲补偿的MIMO OFDM系统同步算法

李国栋¹,樊养余¹,王衍文²

1．西北工业大学电子信息学院，西安 710072
2．中兴通讯股份有限公司移动研究所西安分部，西安 710065

通讯作者: 李国栋

Abstract

Abstract: This paper proposes synchronization algorithms of MIMO OFDM system based on Carrier Frequency Offset （CFO） blind compensation.The synchronization is accomplished sequentially by CFO blind compensation，coarse time synchronization，CFO estimation，CFO compensation and symbol-timing synchronization.The algorithms greatly mitigate the side effect of CFO to symbol-timing synchronization and have good property proved by MATLAB simulation.

Key words: MIMO, OFDM, symbol-timing synchronization, CFO blind compensation

摘要： 给出了基于载波频偏盲补偿的MIMO OFDM系统同步算法：首先，将接收到的序列进行载波频偏盲补偿；然后，进行粗时间同步和载波频偏估计；最后，应用估计出的载波频偏进行载波频偏补偿，利用经过载波频偏补偿后的序列进行符号定时同步。该算法最大限度地抑制了载波频偏对符号定时同步的影响。仿真试验证明，该算法有着良好的性能。

关键词: 多输入多输出, 正交频分复用, 符号定时同步, 载波频偏盲补偿

LI Guo-dong¹,FAN Yang-yu¹,WANG Yan-wen². MIMO OFDM system synchronization algorithms based on blind compensation of carrier frequency offset[J]. Computer Engineering and Applications, 2008, 44(12): 133-135.

李国栋¹,樊养余¹,王衍文². 基于载波频偏盲补偿的MIMO OFDM系统同步算法[J]. 计算机工程与应用, 2008, 44(12): 133-135.

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MIMO OFDM system synchronization algorithms based on blind compensation of carrier frequency offset

基于载波频偏盲补偿的MIMO OFDM系统同步算法

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