Robust estimators for frequency offset of OFDM in non-Gaussian noise

被引：1

作者：

Chong, Dahae ^{[1
]}

Lee, Youngpo ^{[1
]}

Song, Iickho ^{[2
]}

Yoon, Seokho ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Sch Informat & Commun Engn, Suwon 440746, Gyeonggi Do, South Korea

[2] Korea Adv Inst Sci & Technol, Dept Elect Engn, Taejon 305701, South Korea

来源：

IEICE ELECTRONICS EXPRESS | 2011年 / 8卷 / 17期

基金：

新加坡国家研究基金会;

关键词：

frequency offset estimation; non-Gaussian noise; OFDM; IMPULSIVE NOISE; ENVIRONMENTS;

D O I：

10.1587/elex.8.1412

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper addresses robust estimation for the frequency offset of orthogonal frequency division multiplexing in non-Gaussian noise channels. We first propose a maximum-likelihood (ML) estimator in non-Gaussian noise modeled as a complex isotropic Cauchy process, and then present a simpler, yet still robust, estimator based on the ML estimator. From numerical results, it is confirmed that the proposed estimators offer a substantial performance improvement over the conventional estimators in non-Gaussian noise channels.

引用

页码：1412 / 1418

页数：7

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