A Low Complexity Integer Frequency Offset Estimation Scheme Based on Coherence Phase Bandwidth for OFDM Systems

被引：0

作者：

Lee, Youngseok ^{[1
]}

Lee, Seong Ro ^{[2
]}

Yoo, Seungsoo ^{[3
]}

Shim, Jeongyoon ^{[1
]}

Lee, Jaewoo ^{[1
]}

Yoon, Seokho ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Coll Informat & Commun Engn, Suwon, South Korea

[2] Mokpo Natl Univ, Dept Informat & Elect Engn, Mokpo, South Korea

[3] Konkuk Univ, Dept Elect Engn, Seoul, South Korea

来源：

APPLIED SCIENCE AND PRECISION ENGINEERING INNOVATION, PTS 1 AND 2 | 2014年 / 479-480卷

基金：

新加坡国家研究基金会;

关键词：

OFDM; integer frequency offset; threshold; coherence phase bandwidth (CPB);

D O I：

10.4028/www.scientific.net/AMM.479-480.878

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this paper, we propose a low complexity integer frequency offset estimation scheme based on coherence phase bandwidth for orthogonal frequency division multiplexing (OFDM) systems. The proposed scheme overcomes the effect of the timing offset via correlating the local and received OFDM training symbols in a coherence phase bandwidth block unit. Moreover, by utilizing a threshold to determine an interger frequency offset etimate, the proposed scheme need not calculate correlation values for all possible interger frequency offset candidates. From numerical results, it is demonstrated that the proposed scheme can estimate the integer freqeuncy offset with a reduced complexity while minataining the same level of the estimation performance.

引用

页码：878 / +

页数：2

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