Title :
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
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;
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
DOI :
10.1109/ITW2.2006.323787
