Title :
A Perturbation Method for Decoding of LDPC Aided by CRC
Author :
Lin, Chunlei ; Xiao, Dongliang ; Cheng, Hongbing ; Ma, Meng ; Jiao, Bingli
Author_Institution :
Dept. of Electron., Peking Univ., Beijing
Abstract :
In this paper, we propose a new decoding method for LDPC aided by CRC and perturbation for improving FER performance. The CRC is used to check the decoding error of BP algorithm. Once an error is found, the perturbation method will be used to start re-decoding processing. Simulation results show that this method performs within about 1.2 dB of the sphere-packing bound for codeword length of several hundred bits.
Keywords :
cyclic redundancy check codes; error statistics; parity check codes; CRC; FER performance; LDPC; codeword length; decoding error; perturbation method; AWGN; Belief propagation; Binary phase shift keying; Cyclic redundancy check; Decoding; Joining processes; Message passing; Modulation coding; Parity check codes; Perturbation methods;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC-2006 Fall. 2006 IEEE 64th
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0062-7
Electronic_ISBN :
1-4244-0063-5
DOI :
10.1109/VTCF.2006.323
