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OFDM Receiver for Fixed Satellite Channel  

Thomas, Nathalie (University of Toulouse, IRIT/ENSEEIHT/TeSA)
Boucheret, Marie-Laure (University of Toulouse, IRIT/ENSEEIHT/TeSA)
Ho, Anh Tai (INSA, 20, avenue des Buttes de Coesmes)
Dervin, Mathieu (Thales Alenia Space, 26 av Jean Francois Champollion)
Deplancq, Xavier (CNES, 18 av. Edouard Belin)
Publication Information
Journal of Communications and Networks / v.12, no.6, 2010 , pp. 533-543 More about this Journal
Abstract
This paper proposes an orthogonal frequency division multiplexing (OFDM) waveform for the forward link of a fixed broadband satellite system. We focus on the synchronization tasks in the receiver. Our objective is to minimize the required overhead, in order to improve the spectral efficiency with regard to a single carrier waveform system. A non pilot aided algorithm is used for fine synchronization. It is preceded by a coarse synchronization stage, which relies on a limited overhead (short cyclic prefix associated to some pilots). The performance of the proposed receiver is assessed through simulation results.
Keywords
Gaussian channel; orthogonal frequency division multiplexing (OFDM) receiver; synchronization;
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