Improved Iterative Decoding with Analysis for Generalized Low-Density Codes

Author

Zheng, He ; Zhou, Huaying ; Hu, Hanying

Author_Institution

Southwest Electron. & Telecom Technol. Res. Inst., Chengdu

fYear

2006

fDate

22-26 Oct. 2006

Firstpage

199

Lastpage

203

Abstract

In this paper, we propose an improved graph-based Chase-MP algorithm for iterative decoding of generalized low-density (GLD) codes, and also present analysis of the iterative decoding by using the Gaussian approximation. The simulation results on the additive white Gaussian noise (AWGN) channel show that the proposed algorithm can achieve good performance. During the iterative decoding analysis, we get a dynamic mathematical model of the Gaussian mean on iterations. As an application of the model derived, we compute decoding thresholds for several extended Bose-Chaudhuri-Hocquengnem (eBCH)-component GLD codes

Keywords

AWGN channels; BCH codes; channel coding; graph theory; iterative decoding; AWGN channel; Gaussian approximation; additive white Gaussian noise channel; dynamic mathematical model; eBCH; extended Bose-Chaudhuri-Hocquengnem; generalized low-density codes; graph-based Chase-MP algorithm; iterative decoding; AWGN; Algorithm design and analysis; Approximation algorithms; Computational modeling; Gaussian approximation; Information analysis; Iterative algorithms; Iterative decoding; Parity check codes; Telecommunications;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory Workshop, 2006. ITW '06 Chengdu. IEEE

Conference_Location

Chengdu

Print_ISBN

1-4244-0067-8

Electronic_ISBN

1-4244-0068-6

Type

conf

DOI

10.1109/ITW2.2006.323787

Filename

4119285