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On the weight distribution of fixed-rate Raptor codes
Publikationstyp
Conference Paper
Publikationsdatum
2015-09-28
Sprache
English
Institut
TORE-URI
Volume
2015
Start Page
2880
End Page
2884
Article Number
7282983
Citation
IEEE International Symposium on Information Theory - Proceedings : 7282983 (2015-09-28)
Contribution to Conference
Publisher DOI
Scopus ID
In this paper Raptor code ensembles with linear random precodes in a fixed-rate setting are considered. An expression for the average distance spectrum is derived and this expression is used to obtain the asymptotic exponent of the weight distribution. The asymptotic growth rate analysis is then exploited to develop a necessary and sufficient condition under which the fixed-rate Raptor code ensemble exhibits a strictly positive typical minimum distance.