2017
DOI: 10.4236/ijcns.2017.105b003
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A Highly Compatible Circular-Shifting Network for Partially Parallel QC-LDPC Decoder

Abstract: The conventional methodology for designing QC-LDPC decoders is applied for fixed configurations used in wireless communication standards, and the supported largest expansion factor Z (the parallelism of the layered decoding) is a fixed number. In this paper, we study the circular-shifting network for decoding LDPC codes with arbitrary Z factor, especially for decoding large Z (Z  P) codes, where P is the decoder parallelism. By buffering the P-length slices from the memory, and assembling the shifted slices i… Show more

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