Title :
The average weight distribution of Tanner code ensembles and a way to modify them to improve their weight distribution
Author :
Tillich, Jean-Pierre
Author_Institution :
INRIA Project CODES, France
fDate :
27 June-2 July 2004
Abstract :
This paper computes the asymptotic average weight distribution of Tanner code ensembles. The result obtained generalizes formulas, which were known for LDPC code ensembles. Also derive sufficient conditions ensuring that such a family contains a subfamily, which is asymptotically good and a ways to modify them to improve their weight distribution.
Keywords :
parity check codes; probability; LDPC code ensemble; Tanner code ensemble; asymptotic average weight distribution; low density parity check codes; Binary codes; Bipartite graph; Code standards; Distributed computing; Parity check codes; Probability distribution; Sufficient conditions;
Conference_Titel :
Information Theory, 2004. ISIT 2004. Proceedings. International Symposium on
Print_ISBN :
0-7803-8280-3
DOI :
10.1109/ISIT.2004.1365045
