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

fYear

2008

fDate

25-27 May 2008

Firstpage

16

Lastpage

20

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICCCAS.2008.4657717

Filename

4657717