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

IEICE Electronics Express

Iickho Song¹  Dahae Chong²  Seokho Yoon²  Youngpo Lee² 

[1] Department of Electrical Engineering, Korea Advanced Institute of Science and Technology;School of Information and Communication Engineering, Sungkyunkwan University

关键词: frequency offset estimation;    non-Gaussian noise;    OFDM;   

DOI  :  10.1587/elex.8.1412

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(14)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.

【 授权许可】

Unknown