OFDM Frequency Offset Estimation Schemes Robust to the Non-Gaussian Noise

- Journal title : The Journal of Korean Institute of Communications and Information Sciences
- Volume 37, Issue 5A, 2012, pp.298-304
- Publisher : The Korean Institute of Communications and Information Sciences
- DOI : 10.7840/KICS.2012.37A.5.298

Title & Authors

OFDM Frequency Offset Estimation Schemes Robust to the Non-Gaussian Noise

Park, Jong-Hun; Yu, Chang-Ha; Yoon, Seok-Ho;

Park, Jong-Hun; Yu, Chang-Ha; Yoon, Seok-Ho;

Abstract

In this paper, we propose robust estimators for the frequency offset of orthogonal frequency division multiplexing in non-Gaussian noise environments. We first propose a maximum-likelihood (ML) estimator in non-Gaussian noise modeled as a complex isotropic Cauchy process, and then, we present a simpler suboptimal estimator based on the ML estimator. From numerical results, it is demonstrated that the proposed estimators not only outperform the conventional estimators, but also have a robustness in non-Gaussian noise environments.

Keywords

OFDM;Non-Gaussian Noise;

Language

Korean

Cited by

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