MIMO Channel Matrix Condition Number Estimation and Threshold Selection for Combined K-Best Sphere Decoders

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  • ROGER Sandra
    Instituto de Telecomunicaciones y Aplicaciones Multimedia (iTEAM), Universidad Politecnica de Valencia
  • GONZALEZ Alberto
    Instituto de Telecomunicaciones y Aplicaciones Multimedia (iTEAM), Universidad Politecnica de Valencia
  • ALMENAR Vicenc
    Instituto de Telecomunicaciones y Aplicaciones Multimedia (iTEAM), Universidad Politecnica de Valencia
  • VIDAL Antonio M.
    Departmento de Sistemas Informaticos y Computacion (DSIC), Universidad Politecnica de Valencia

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説明

It is known that MIMO channel matrix condition number influences detectors performance. Several authors have proposed combined decoders, mainly suboptimal, to cope with this fact. These combined algorithms require an estimation of the MIMO channel matrix condition number and a selection of a suitable threshold condition number. This letter presents practical algorithms to carry out the referred tasks and shows their performance in practice.

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