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Channel-adaptive coding for coarsely quantized MIMO systems | IEEE Conference Publication | IEEE Xplore

Channel-adaptive coding for coarsely quantized MIMO systems


Abstract:

We present iterative algorithms which efficiently compute an optimized subset of equiprobable input symbols that achieves near-capacity on a large asymmetric discrete mem...Show More

Abstract:

We present iterative algorithms which efficiently compute an optimized subset of equiprobable input symbols that achieves near-capacity on a large asymmetric discrete memoryless channel (DMC). The optimized subset defines a delay-free channel-adapted inner code which can be combined with a standard code. The introduction of a dense data structure renders it possible to apply channel-adaptive coding to 2-bit quantized MIMO systems, which exhibit a very large output set. The coding approach is shown to be robust to imperfect channel state information (CSI). Finally, we present a binary index switching algorithm that minimizes the BER by optimizing the mapping from code bits to input symbols.
Date of Conference: 23-24 February 2010
Date Added to IEEE Xplore: 29 April 2010
ISBN Information:
Conference Location: Bremen, Germany

References

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