The Chase-Pyndiah algorithm which is a soft-input/soft-output algorithm is revisited for decoding turbo product codes (TPC). In general, soft-output computation of the algorithm involves a huge amount of compare and save operations. In this paper, a hybrid approach is considered for the soft output computation which reduces the amount of these operations to a moderate level comparing to the original algorithm. For the Hamming code TPCs $(32,26,4)^{2}$ and $(64,57,4)^{2}$, the Chase-Pyndiah algorithm with hybrid approach for the soft output computation has shown no degradation in coding gain when compared to the original algorithm while reducing the algorithm’s complexity.
Moderate Complexity Turbo Decoder for Near-Optimum Decoding of Product Codes
01.06.2022
1522122 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Simulation of universal CCSDS Turbo-codes decoder of non-standard parameters
British Library Online Contents | 2014
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