Self-Adaptive Scaled Min-Sum Algorithm for LDPC Decoders Based on Delta-Min

A self-adaptive scaled min-sum algorithm for LDPC decoding based on the difference between the first two minima of the check node messages (Amin) is proposed. Amin is utilized for adjusting the scaling factor of the check node messages, and simulation results show that the proposed algorithm improves the error correcting performance compared to existing algorithms.This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2015R1D1A1A09061079). The authors also would like to give their special thanks to Prof. Dong-Joon Shin (Hanyang University, Seoul, Korea) for useful discussion