Title :
A new simplified RRWBF decoding algorithm for LDPC decoder in CMMB
Author :
Xiangran Sun ; Yunyun Wei
Author_Institution :
Inf. Eng. Sch., Commun. Univ. of China, Beijing, China
Abstract :
A new soft-value bit-flipping low-density parity-check (LDPC) decoding is proposed based on a simplified reliability ratio based on weighted bit-flipping (RRWBF) algorithm. Moreover, we design a soft-output demapping and soft-decision decoding for the LDPC code in China Mobile Multimedia Broadcasting (CMMB). In addition, the complexity of decoding and the consumption of hardware is reduced effectively by our proposed simplified algorithm.
Keywords :
decoding; digital multimedia broadcasting; parity check codes; CMMB; China mobile multimedia broadcasting; LDPC decoder; simplified RRWBF decoding algorithm; simplified reliability ratio based on weighted bit-flipping algorithm; soft-decision decoding; soft-output demapping; soft-value bit-flipping low-density parity-check decoding; Algorithm design and analysis; Approximation algorithms; Complexity theory; Decoding; Parity check codes; Quadrature amplitude modulation; Reliability; CMMB; LDPC; RRWBF; decoding;
Conference_Titel :
Image and Signal Processing (CISP), 2014 7th International Congress on
Conference_Location :
Dalian
DOI :
10.1109/CISP.2014.7003892
