Robust estimators for frequency offset of OFDM in non-Gaussian noise
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概要
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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.
著者
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Yoon Seokho
School Of Information And Communication Engineering Sungkyunkwan University
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Lee Youngpo
School Of Information And Communication Engineering Sungkyunkwan University
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Song Iickho
Department Of Electrical Engineering And Computer Science
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Chong Dahae
School of Information and Communication Engineering, Sungkyunkwan University
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