In this paper, we introduce a new family of codes named as systematic spatially-coupled accumulate repeat accumulate SC-ARA codes based on chain of interconnected proto-graphs over the binary erasure channels (BEC). It has been observed that Spatially-coupled low density parity check (SC-LDPC) codes are able to approach the capacity universally across the binary-input memoryless (BMS) channels. A density evolution (DE) analysis is provided for this class of codes which categorized by bounded density and/or complexity per information bit. Simulation results show that the spatially coupling of ensembles of ARA codes, with bounded density and/or complexity, drives the message-passing belief propagation decoding threshold (BP) to be closed to the maximum a posterior (MAP) threshold of the underlying codes over the BEC.


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    Title :

    Performance Improvement of Accumulate-Repeat-Accumulate Codes with Bounded Complexity


    Contributors:


    Publication date :

    2015-09-01


    Size :

    397217 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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