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

نویسندگان

  • Dahae Chong
  • Youngpo Lee
  • Iickho Song
  • Seokho Yoon
چکیده

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.

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عنوان ژورنال:
  • IEICE Electronic Express

دوره 8  شماره 

صفحات  -

تاریخ انتشار 2011