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sum product algorithm in matlab
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LDPC基本译码算法，Bit-flipping、Sum-product的MATLAB程序-Basic LDPC decode algorithm, Bit-flipping、Sum-product
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sum product algorithm decoding of ldpc
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LDPC译码器，基于SPA算法，matlab函数。-LDPC decoder, based on sum-product algorithm. a matlab function
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Parity check bits is computed using sparse LU decomposition, utilizing sparse matrix properties of H. LDPC code decoding is done using iterative belief propagation or sum-product algorithm (SPA). Four versions of SPA decoder are presented.
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function vHat decodeBitFlipping(rx, H, iteration)
Hard-decision/bit flipping sum product algorithm LDPC decoder
rx : Received signal vector (column vector)
H : LDPC matrix
iteration : Number of iteration
vHat : Decoded vector (
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function vHat decodeLogDomain(rx, H, N0, iteration)
Log-domain sum product algorithm LDPC decoder
rx : Received signal vector (column vector)
H : LDPC matrix
N0 : Noise variance
iteration : Number of iteration
vHat : Decoded
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function vHat decodeProbDomain(rx, H, N0, iteration)
Probability-domain sum product algorithm LDPC decoder
rx : Received signal vector (column vector)
H : LDPC matrix
N0 : Noise variance
iteration : Number of iteration
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