A Blind Maximum Likelihood Carrier Frequency Offset Correction Approach for OFDM Systems over Multipath Fading Channels

被引：0
|
作者：
Yuan Liu
Wasfy B. Mikhael
机构：
[1] Formerly with Department of Electrical and Computer Engineering,
[2] University of Central Florida,undefined
[3] Orlando,undefined
[4] Florida 32816,undefined
[5] USA; currently with ArrayComm LLC,undefined
[6] Department of Electrical and Computer Engineering,undefined
[7] University of Central Florida,undefined
来源：
Circuits, Systems & Signal Processing | 2007年 / 26卷
关键词：
Orthogonal Frequency Division Multiplex; Fading Channel; Independent Component Analysis; Orthogonal Frequency Division Multiplex System; Independent Component Analysis;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In orthogonal frequency division multiplexing (OFDM) systems, carrier frequency offset (CFO) destroys the orthogonality between subcarriers and hence introduces intercarrier interference. In this paper, a maximum likelihood CFO correction (ML-CFOC) approach is proposed to compensate for the deleterious effects of CFO. The ML-CFOC method exploits the independence between the desired signals and is based on a novel simplified independent component analysis algorithm. The proposed ML-CFOC approach is successfully implemented for OFDM systems over multipath fading channels without requiring training sequences. Computer simulations are given to illustrate the optimal performance of the ML-CFOC.
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页码：43 / 54
页数：11
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