Design of structured LDPC codes with quasi-cyclic and rotation architecture

Author

Guo-lei, Qiao ; Zi-jian Dong

Author_Institution

Sch. of Electron. Eng., Huaihai Inst. of Technol., Lianyungang, China

Volume

1

fYear

2010

fDate

20-22 Aug. 2010

Abstract

Quasi-cyclic low density parity check (LDPC) codes and rotation LDPC codes are investigated in this paper, based on which, a new class of well-structured LDPC codes are proposed. Additionally, for ease of coding, a dual-diagonal structure is applied to the parity-check matrices of those codes, which ensure that parity-check bits can be recursively calculated with linear computational complexity. With the rotating and cyclic shift structure, decoders can be effectively implemented with partially parallel architecture appeared in some literatures on QC-LDPC codes and other structured LDPC codes. Simulation results show that the proposed structured LDPC codes are feasible.

Keywords

computational complexity; parity check codes; dual-diagonal structure; linear computational complexity; low density parity check codes; parity-check bits; quasicyclic architecture; quasirotation architecture; structured LDPC codes; Binary phase shift keying; Clocks; low density parity check (LDPC) codes; quasi-cyclic; rotation structure;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Computer Theory and Engineering (ICACTE), 2010 3rd International Conference on

Conference_Location

Chengdu

ISSN

2154-7491

Print_ISBN

978-1-4244-6539-2

Type

conf

DOI

10.1109/ICACTE.2010.5578934

Filename

5578934