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    Ordered statistics decoding of linear block codes on frequency nonselective multipath channels

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    ABSTRATCT: The ordered statistics decoding algorithm proposed in [ 1 J is applied to the wide-sense-stationary uncorrelated-scattering (WSSUS) Rayleigh fading channel [2], modeled as a frequency non-selective, slow-fading environment without inter-symbol interference (ISI). We derive the log-likelihood ratio of received symbols based on 2DPSK transmission. Simulations are conducted for the WSSUS channel at various interleaving degrees. At bit error rate (BER) lo-', 38 dB gains compared to uncoded 2DPSK are obtained for the decoding of the (128, 64, 22) extended BCH code with interleaving degree 50. 1
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