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An SVD-Aided Efficient Bit-Loading Algorithm for MIMO Transmission Over Spatially Correlated Channels

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Abstract

This paper proposes an efficient bit-loading algorithm for Multiple-Input-Multiple-Output transmission over spatially correlated channels with perfect Channel State Information at both link ends. Based on water-filling principle, the algorithm does not assume the well-known gap approximation and accounts for the spatial correlation effects through the initial bit allocation. The result is the optimal distribution of bits and power over the eigenmodes for multiple antenna systems. We report the performance evaluations in the presence of spatial correlation in order to illustrate the efficiency and the robustness of our bit-loading algorithm in realistic environments. The simulation results demonstrate that our algorithm leads to significant improvements. In addition, these results show that our algorithm achieves the maximal diversity order, as well as exhibiting a high extra coding gain.

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Acknowledgments

This research was supported by the CISIT project. The authors would like to thank the Nord/Pas-de-Calais Region for financial support.

Conflict of interest

The authors declare that they have no competing interests.

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Authors and Affiliations

  1. Univ Lille Nord de France, 59000 , Lille, France

    Imade Fatani, Marie Zwingelstein-Colin, Mohamed Gharbi, François-Xavier Coudoux, Marion Berbineau & Marc Gazalet

  2. UMR 8520, Department OAE, UVHC, 59313 , Valenciennes, France

    Imade Fatani, Marie Zwingelstein-Colin, Mohamed Gharbi, François-Xavier Coudoux & Marc Gazalet

  3. IFSTTAR, LEOST, 59650 , Villeneuve d’Ascq, France

    Marion Berbineau

  4. Univ Hassan Premier, ENSA, BP 77, 25000 , Khouribga, Morocco

    Imade Fatani

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  1. Imade Fatani
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  2. Marie Zwingelstein-Colin
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  3. Mohamed Gharbi
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  4. François-Xavier Coudoux
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  5. Marion Berbineau
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Correspondence to Imade Fatani.

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Fatani, I., Zwingelstein-Colin, M., Gharbi, M. et al. An SVD-Aided Efficient Bit-Loading Algorithm for MIMO Transmission Over Spatially Correlated Channels. Wireless Pers Commun 75, 1167–1185 (2014). https://doi.org/10.1007/s11277-013-1414-3

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  • DOI: https://doi.org/10.1007/s11277-013-1414-3

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