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Communication Dans Un Congrès Année : 2005

Linear precoding with low complexity MMSE turbo-equalization and application to the wireless LAN system

Résumé

An improved turbo-equalization process is proposed for linear precoding with iterative decoding. Using recent results in turbo-equalization, we derive the equalization coefficients for an optimized precoding decoder thanks to the SINR criterion. The proposed method keeps a low complexity even with large size precoders and high order modulations. Theoretical and simulation results show that full diversity is achieved after three or four iterations over a flat Rayleigh fading channel. An application of this transmission scheme is presented in the context of the OFDM wireless LAN 802.11a. We observe a gain of several decibels compared to the conventional unprecoded transmission scheme.
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Dates et versions

hal-01874727 , version 1 (14-09-2018)

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  • HAL Id : hal-01874727 , version 1

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Jérôme Le Masson, Charlotte Langlais, Claude Berrou. Linear precoding with low complexity MMSE turbo-equalization and application to the wireless LAN system. ICC'2005, International Conference on Communications, Seoul, Korea, 16-20 May, May 2005, Seoul, South Korea. pp.2352 - 2536. ⟨hal-01874727⟩
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