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Techniques MIMO pour un lien sans l robuste entre un bus et un poste de contrôle pour une application de surveillance embarquée

Abstract : This works deals with a wireless link between a bus and a control centre for embedded audio and video monitoring. Our work is split in three part : the MIMO channels and its modelling, the development of the transmission chain in simulation and its evaluation, the development of a real transmission chain. First, a state of the art of the modelling of the MIMO channel is presented. Real channels are measured and its modelling by the Kronecker and Weichselberger models are studied. The transmitter of the considered chained is based on the WiMAX standard. Two receivers are presented and evaluated : a simple receiver and a turbo receiver. Several channel models are used for the evaluation of the performance. The Turbo receiver proved more eective in terms of bits errors rate. It is more resistant to the spatial correlation and to the errors on the channel estimation. The correlation shows more prejudicial than line of sight for the system. Last, a real transmission module has been developed. The real chain corresponds to the RF part. The generation and the treatments of the signals are realized with developed software. First real transmissions show us a degradation of the performance in comparison with simulations. Alternatives solutions are proposed
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Submitted on : Thursday, December 9, 2010 - 3:06:26 PM
Last modification on : Thursday, December 9, 2010 - 9:03:09 PM
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  • HAL Id : tel-00545068, version 1

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G. Moniak. Techniques MIMO pour un lien sans l robuste entre un bus et un poste de contrôle pour une application de surveillance embarquée. Réseaux et télécommunications [cs.NI]. Université de Valenciennes et du Hainaut-Cambresis, 2007. Français. ⟨tel-00545068⟩

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