TY - GEN
T1 - Improved decoding of LDPC codes by variable-To-check residual belief propagation
AU - Song, Lingyan
AU - Hou, Shujuan
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2016/6/22
Y1 - 2016/6/22
N2 - This paper proposes an improved variable-To-check residual belief propagation algorithm, called Lazy-RBP, in which a new informed dynamic schedule (IDS) combined with the lazy schedule (LS) is adopted. Firstly, Lazy-RBP exploits the probabilistic girth-based approach, one of the LS strategies, to decide the set of updated variable nodes in each iteration. Then among this set, a new IDS scheme is introduced, where both the unreliable variable nodes and the residual of the variable-To-check messages are utilized to locate the message to be propagated first. Simulation results show that the Lazy-RBP algorithm can not only improve the error performance but accelerate the convergence compared with the VC-RBP algorithm.
AB - This paper proposes an improved variable-To-check residual belief propagation algorithm, called Lazy-RBP, in which a new informed dynamic schedule (IDS) combined with the lazy schedule (LS) is adopted. Firstly, Lazy-RBP exploits the probabilistic girth-based approach, one of the LS strategies, to decide the set of updated variable nodes in each iteration. Then among this set, a new IDS scheme is introduced, where both the unreliable variable nodes and the residual of the variable-To-check messages are utilized to locate the message to be propagated first. Simulation results show that the Lazy-RBP algorithm can not only improve the error performance but accelerate the convergence compared with the VC-RBP algorithm.
KW - LDPC codes
KW - informed dynamic schedule (IDS)
KW - lazy residual belief propagation (Lazy-RBP)
KW - lazy schedule (LS)
UR - http://www.scopus.com/inward/record.url?scp=84980417089&partnerID=8YFLogxK
U2 - 10.1109/CHINACOM.2015.7497930
DO - 10.1109/CHINACOM.2015.7497930
M3 - Conference contribution
AN - SCOPUS:84980417089
T3 - Proceedings of the 2015 10th International Conference on Communications and Networking in China, CHINACOM 2015
SP - 163
EP - 166
BT - Proceedings of the 2015 10th International Conference on Communications and Networking in China, CHINACOM 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th International Conference on Communications and Networking in China, CHINACOM 2015
Y2 - 15 August 2015 through 17 August 2015
ER -