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Integer Frequency Offset Recovery in OFDM Systems

被引：0
|
作者：
Abdzadeh-Ziabari, Hamed [1 ]
Shayesteh, Mahrokh G. [1 ,2 ]
机构：
[1] Urmia Univ, Dept Elect Engn, Orumiyeh, Iran
[2] Sharif Univ Technol, Dept Elect Engn, ACRI, Wireless Res Lab, Tehran, Iran
来源：
18TH ASIA-PACIFIC CONFERENCE ON COMMUNICATIONS (APCC 2012): GREEN AND SMART COMMUNICATIONS FOR IT INNOVATION | 2012年
关键词：
Component; Carrier frequency offset; estimation; OFDM;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
This paper addresses the estimation of the integer part of the carrier frequency offset (CFO) in orthogonal frequency division multiplexing (OFDM) systems. A novel method is presented based on the maximum likelihood (ML) approach that jointly estimates the channel impulse response (CIR) and the integer CFO. The new scheme estimates the CIR by using pilots and obtains the estimate of the integer CFO by taking advantage of the effect of the CFO on the CIR and data symbols. The performance of the new method is evaluated in Rayleigh fading channels. The results demonstrate that the proposed scheme significantly outperforms the previous methods.
引用
收藏
页码：641 / 646
页数：6
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