this an example of LDPC code in which after encoding i have added AWGN(Additive white Gaussian noise) and bsc(binary symmetric channel). then i hav performed decoding operation. one can easily devloped different BER vs Eb/N0 graph of different channe

Matlab code for LDPC log-domain decoder in AWGN channel-Matlab code for LDPC log-domain decoder in AWGN channel BEC Channel and BSC channel