Title :
Early stopping for LDPC decoding: convergence of mean magnitude (CMM)
Author :
Li, Jin ; You, Xiao-Hu ; Li, Jing
Author_Institution :
Southeast Univ., Nanjing
Abstract :
A new early stopping criterion is proposed for low density parity check (LDPC) codes to reduce the number of decoding iterations while preserving a good decoding performance. The new criterion is based on the convergence of the mean magnitude (CMM) of the log-likelihood ratio messages at the output of each decoding iteration. Information-theoretic support and extensive simulations are provided to demonstrate the efficiency of the criterion
Keywords :
convergence; iterative decoding; parity check codes; CMM; LDPC decoding; convergence-of-mean magnitude; decoding iteration; log-likelihood ratio message; low density parity check code; AWGN; Additive white noise; Communication channels; Convergence; Coordinate measuring machines; Delay lines; Iterative decoding; Maximum likelihood decoding; Parity check codes; Turbo codes;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2006.1714539
