Title :
A fast and efficient encoding structure for QC-LDPC codes
Author :
Yang, Zhixing ; Xie, Qiuliang ; Peng, Kewu ; Fu, Jian
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing
Abstract :
Parallel-input parallel-output (PIPO) structure for quasi-cyclic low-density parity-check (QC-LDPC) codes is proposed in this paper to implement a faster and more efficient QC-LDPC encoder than that based on conventional serial-input parallel-output (SIPO) or parallel-input serial-output (PISO) structure. An encoding architecture based on the proposed PIPO structure for multi-rate QC-LDPC codes employed by the Chinese Digital Television Terrestrial Broadcasting (DTTB) standard is also presented and discussed.
Keywords :
cyclic codes; parity check codes; Chinese Digital Television Terrestrial Broadcasting; QC-LDPC codes; low-density parity-check code; multirate code; parallel-input parallel-output structure; parallel-input serial-output structure; quasicyclic code; serial-input parallel-output structure; Clocks; Code standards; Decoding; Digital TV; Encoding; Laboratories; Multimedia communication; Parity check codes; Sparse matrices; TV broadcasting;
Conference_Titel :
Communications, Circuits and Systems, 2008. ICCCAS 2008. International Conference on
Conference_Location :
Fujian
Print_ISBN :
978-1-4244-2063-6
Electronic_ISBN :
978-1-4244-2064-3
DOI :
10.1109/ICCCAS.2008.4657717
