DocumentCode
2627559
Title
Some new results on LT and Raptor codes
Author
Venkiah, Auguste ; Poulliat, Charly
Author_Institution
CNRS, ENSEA, Cergy-Pontoise, France
fYear
2010
fDate
12-15 April 2010
Firstpage
999
Lastpage
1004
Abstract
In this paper, some new studies about LT and Raptor codes are presented. Upper and lower bounds on the asymptotic average error probability are derived and they appear quite tight to predict the performance in the error floor region. This study allows to underline the existing trade-off between the asymptotic overhead and the performance in the error floor region. Then, we propose a method to optimize the precode profile for a given LT distribution using a mixture of Gaussian channels.
Keywords
Gaussian channels; codes; error statistics; Gaussian channels; LT distribution; Raptor codes; asymptotic average error probability; asymptotic overhead; error floor region; Additive white noise; Costs; Error correction codes; Error probability; Feedback; Gaussian approximation; Gaussian channels; Iterative decoding; Optimization methods; Parity check codes;
fLanguage
English
Publisher
ieee
Conference_Titel
Wireless Conference (EW), 2010 European
Conference_Location
Lucca
Print_ISBN
978-1-4244-5999-5
Type
conf
DOI
10.1109/EW.2010.5483534
Filename
5483534
Link To Document