Non Data-Aided SNR Estimation of OFDM SignalsReportar como inadecuado

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1 SC - Département Signal et Communications 2 Lab-STICC TB CACS COM Lab-STICC - Laboratoire des sciences et techniques de l-information, de la communication et de la connaissance UMR 3192

Abstract : This letter deals with the problem of non data aided NDA signal to noise ratio SNR estimation of OFDM signals transmitted through unknown multipath fading channel. Most of existing OFDM SNR estimators are based on the knowledge of pilot sequences which is not applicable in some contexts such as cognitive radio for instance. We show that it is possible to take advantage of the periodic redundancy induced by the cyclic prefix to get an accurate NDA SNR estimator. Numerical simulations highlight the benefit of the proposed method compared with the state of the art.

Autor: François-Xavier Socheleau - Abdeldjalil Aïssa-El-Bey - Sébastien Houcke -



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