New stopping criteria for decoding LDPC codes in H-ARQ systems

Author

Shin, Beomkyu ; Sang-Hyo Kim ; No, Jong-Seon ; Shin, Dong-Joon

Author_Institution

Dept. of EECS & INMC, Seoul Nat. Univ., Seoul

fYear

2008

fDate

7-10 Dec. 2008

Firstpage

1

Lastpage

5

Abstract

In this paper, we propose a combination of stopping criteria for BP decoding of LDPC codes effective on both high and low SNR and scalable to variable rate and length codes. The proposed algorithms combine three distinct criteria for decoding including conventional syndrome stopping. Each criterion is extremely simple and shall not be a burden to overall system. With these criteria, it is shown that the decoding complexity of H-ARQ system with AMC scheme can be reduced.

Keywords

adaptive codes; adaptive modulation; automatic repeat request; communication complexity; decoding; modulation coding; parity check codes; variable length codes; variable rate codes; AMC scheme; BP decoding complexity; H-ARQ system; LDPC code; syndrome stopping criteria; variable length code; variable rate code; Error analysis; Fading; Ice; Information theory; Iterative decoding; Parity check codes; Research and development; Signal to noise ratio; Transmitters; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory and Its Applications, 2008. ISITA 2008. International Symposium on

Conference_Location

Auckland

Print_ISBN

978-1-4244-2068-1

Electronic_ISBN

978-1-4244-2069-8

Type

conf

DOI

10.1109/ISITA.2008.4895538

Filename

4895538