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Pilot-aided channel estimation and performance of ASTC-MIMO-OFDM system in a correlated Rayleigh frequency-selective channel

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5 Author(s)
Ahmed Bannour ; 6 Tel Lab, Higher School of Communications of Tunis, Sup'Com Universite de Carthage, Tunisia ; Mohamed Lassaad Ammari ; Yichuang Sun ; Fabien Delestre
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Algebraic Space-Time Codes (ASTC) for MIMO systems are based on quaternion algebras. Thanks to their algebraic construction, the ASTC codes are full-rank, full-rate and have the non-vanishing determinant property. These codes have been proposed for MIMO flat fading channels in order to increase the spectral efficiency and to maximize the coding gain. The purpose of this work is to analyze the performance of the ASTC in a frequency selective Rayleigh channel. To deal with the frequency selectivity, we use the OFDM modulation. Methods for channel estimation using pilot symbol have been proposed. BER performances of ASTC-MIMO-OFDM system, under several propagation conditions, have been evaluated.

Published in:

Wireless Advanced (WiAd), 2011

Date of Conference:

20-22 June 2011