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Communication Dans Un Congrès Année : 2011

Blind and semi-blind sparse channel identification in MIMO OFDM systems

Résumé

In this paper, we are interested in blind and semi-blind identification of multiple-input multiple-output (MIMO) channel for orthogonal frequency division multiplexing (OFDM) systems. Using the sparsity property of wireless channel impulse response, we propose an iterative method which minimizes a cost function to result from the combination of blind or semi-blind criterion and the lp norm. This norm is considered as a good sparsity measure. The simulations show that the proposed method outperforms existing techniques in terms of estimation error and robustness to channel order overestimation.
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Dates et versions

hal-00947728 , version 1 (17-02-2014)

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  • HAL Id : hal-00947728 , version 1

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Abdeldjalil Aissa El Bey, Dai Kimura, Hiroyuki Seki, Tomohiko Taniguchi. Blind and semi-blind sparse channel identification in MIMO OFDM systems. ICC 2011 : IEEE International Conference on Communications, Jun 2011, Kyoto, Japan. ⟨hal-00947728⟩
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