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

Abstract

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.