Title :
Outage thresholds of LDPC codes over nonergodic block-fading channels
Author :
Andriyanova, Iryna ; Biglieri, Ezio ; Boutros, Joseph J.
Author_Institution :
ENSEA, ETIS Group, UCP, Cergy-Pontoise, France
Abstract :
This paper derives approximations allowing the estimation of outage probability for standard irregular LDPC codes and full-diversity Root-LDPC codes used over nonergodic block-fading channels. Two separate approaches are discussed: a numerical approximation, obtained by curve fitting, for both code ensembles, and an analytical approximation for Root-LDPC codes, obtained under the assumption that the slope of the iterative threshold curve of a given code ensemble matches the slope of the outage capacity curve in the high-SNR regime.
Keywords :
curve fitting; fading channels; parity check codes; probability; SNR; curve fitting; full-diversity root-LDPC codes; iterative threshold curve; nonergodic block-fading channels; numerical approximation; outage probability; Code standards; Computer simulation; Curve fitting; Fading; Gaussian approximation; Iterative decoding; Iterative methods; Parity check codes; Probability; Wireless communication;
Conference_Titel :
Wireless Conference (EW), 2010 European
Conference_Location :
Lucca
Print_ISBN :
978-1-4244-5999-5
DOI :
10.1109/EW.2010.5483531
