New low-density-parity-check decoding approach based on the hard and soft decisions algorithms

<span lang="EN-US">It is proved that hard decision algorithms are more appropriate than a soft for low-density parity-check (LDPC) decoding since they less complex at the level. On other hand, it notable algorithm outperforms one in terms of bit error rate (BER) gap. In order to minimize BER and gap between these two families LDPC codes, new suggested this paper, which based on both normalized min-sum (NMS) modified-weighted bit-flipping (MWBF). The proposed named min sum- modified weighted flipping (NMSMWBF). MWBF executed after NMS algorithm. simulations show our 10-8 over additive white gaussian noise (AWGN) channel by 0.25 dB. Furthermore, NMSMWBF same level difficulty.</span>