Fractional Frequency Offset Estimation for OFDM Systems in Non-Cooperative Communication

被引：0
|
作者：
Mingqian Liu [1 ,2 ]
Jian Chen [1 ]
Bingbing Li [1 ,2 ]
Junfang Li [1 ]
机构：
[1] State Key Laboratory of Integrated Service Networks,Xidian University
[2] Collaborative Innovation Center of Information Sensing and Understanding,Xidian University
来源：
China Communications | 2016年 / 13卷 / 09期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
parameter estimation; fractional frequency offset; orthogonal frequency division multiplexing; extended kalman filter;
D O I：
暂无
中图分类号：
TN929.53 [蜂窝式移动通信系统（大哥大、移动电话手机）];
学科分类号：
080402 ; 080904 ; 0810 ; 081001 ;
摘要：
The traditional fractional frequency offset(FFO) estimation schemes for orthogonal frequency division multiplexing(OFDM) in non-cooperative communication have the problems of susceptible performance with the frequency offset values and the number of OFDM symbols,a novel fractional frequency offset blind estimation scheme based on EKF for OFDM systems is conceived.The nonlinear function of the frequency offset is calculated by employing the correlation.And then the frequency offset is estimated by means of the iterative algorithm of EKF.The finally fractional frequency offset is estimated by adopting repeated the above process.Simulation results demonstrate that the proposed scheme is robust to the frequency offset values without any requirements of a prior knowledge.
引用
收藏
页码：65 / 71
页数：7
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