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Layered quasi-cyclic LDPC decoder with reduced-complexity circular shifter
Layered quasi-cyclic LDPC decoder with reduced-complexity circular shifter
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机译:具有降低复杂度的圆形移位器的分层准循环LDPC解码器
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摘要
This disclosure relates generally to data decoding, and more particularly to iterative decoders for data encoded with a low-density parity check (LDPC) encoder. LDPC decoders are disclosed that use reduced-complexity circular shifters that may be used to decode predefined or designed QC-LDPC codes. In addition, methods to design codes which may have particular LDPC code performance capabilities and which may operate with such decoders using reduced-complexity circular shifters are provided. The generation of quasi-cyclic low density parity check codes and the use of circular shifters by LDPC decoders, may be done in such a way as to provide increased computational efficiency, decreased routing congestion, easier timing closure, and improved application performance.
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