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In this letter, we propose to apply message passing algorithms to decode standard convolutional codes and assess the resulting performance and the required complexity compared to conventional decoding algorithms for convolutional codes by concentrating on the Viterbi algorithm (VA). We show that, in contrast to the VA for which the decoding complexity increases exponentially with $m$, the number of...
A message passing (MP) algorithm for resource allocation (RA) in an Orthogonal Frequency Division Multiple Access (OFDMA) based spectrum sharing system is developed in this paper. We derive optimal power and subcarrier allocations. We further shed light on advantages of the MP algorithm particularly against the dual solution and highlight its suitability in reducing the computational burdens for practical...
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