LDPC codes BER simulation under AWGN channel. MacKay-Neal based LDPC matrix. Message encoding uses sparse LU decomposition. There are 4 choices of decoder: hard-decision/bit-flip decoder, probability-domain SPA decoder, log-domain SPA decoder, and simplified log-domain SPA decoder.

decodeBitFlip.m
decodeLogDomain.m
decodeLogDomainSimple.m
decodeProbDomain.m
ldpcBER.m
LDPC码误码率仿真源代码下载.txt
makeLdpc.m
makeParityChk.m

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