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Soft-Decision Decoding of Permutation Block Codes in AWGN and Rayleigh Fading Channels

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We introduce an efficient soft-decision decoder for permutation block codes when assuming AWGN and slow fading frequency-nonselective channels. The decoder implements a combination of the Hungarian algorithm and Murty’s algorithm… Click to show full abstract

We introduce an efficient soft-decision decoder for permutation block codes when assuming AWGN and slow fading frequency-nonselective channels. The decoder implements a combination of the Hungarian algorithm and Murty’s algorithm for the $k$ th assignment. Results show that the proposed algorithm achieves better coding gain when compared with hard-decision decoding. A salient feature of the decoder is that it operates within practical computational complexity, especially for large codebooks.

Keywords: decision; soft decision; permutation block; decision decoding; block codes

Journal Title: IEEE Communications Letters
Year Published: 2017

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