Quasi-cyclic ldpc code design for block-fading channels

Author

Li, Yueqian ; Salehi, Masoud

Author_Institution

Dept. of Electr. & Comput. Eng., Northeastern Univ., Boston, MA, USA

fYear

2010

fDate

17-19 March 2010

Firstpage

1

Lastpage

5

Abstract

We investigate quasi-cyclic low-density parity-check (QC-LDPC) codes for nonergodic block-fading channels. A construction method for designing QC-LDPC codes is presented. With careful design, the proposed QC-LDPC codes exhibit the same good performance as their corresponding random root- LDPC codes introduced in using iterative belief-propagation (BP) decoding. Moreover, the structure of the proposed QCLDPC codes makes an efficient encoding method possible.

Keywords

fading channels; iterative decoding; parity check codes; LDPC code design; encoding method; iterative belief-propagation decoding; nonergodic block-fading channels; quasi-cyclic LDPC code; quasi-cyclic low-density parity-check investigate codes; Bipartite graph; Costs; Design methodology; Fading; Iterative decoding; Mobile communication; Parity check codes; Quantum cascade lasers; Rayleigh channels; Shift registers; Block-fading channels; efficient encoding; quasicyclic low-density parity-check (QC-LDPC) codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Sciences and Systems (CISS), 2010 44th Annual Conference on

Conference_Location

Princeton, NJ

Print_ISBN

978-1-4244-7416-5

Electronic_ISBN

978-1-4244-7417-2

Type

conf

DOI

10.1109/CISS.2010.5464729

Filename

5464729