DocumentCode
2648218
Title
Exposing pseudoweight layers in regular LDPC code ensembles
Author
Flanagan, Mark F.
Author_Institution
Univ. Coll. Dublin, Dublin, Ireland
fYear
2009
fDate
11-16 Oct. 2009
Firstpage
60
Lastpage
64
Abstract
A solution is presented for the asymptotic growth rate of the AWGN-pseudoweight distribution of regular low-density parity-check (LDPC) code ensembles for a selected graph cover degree M ¿1. The evaluation of the growth rate requires solution of a system of 2M +1 nonlinear equations in 2M +1 unknowns. Simulation results for the pseudoweight distribution of two regular LDPC code ensembles are presented for graph covers of low degree.
Keywords
graph theory; maximum likelihood decoding; nonlinear equations; parity check codes; AWGN-pseudoweight distribution; maximum likelihood decoding; nonlinear equations; pseudoweight layers; regular low-density parity-check code ensembles; selected graph cover degree; Conferences; Error correction codes; Fading; Forward error correction; Information theory; Interference; OFDM; Parity check codes; Wireless LAN; Working environment noise;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Theory Workshop, 2009. ITW 2009. IEEE
Conference_Location
Taormina
Print_ISBN
978-1-4244-4982-8
Electronic_ISBN
978-1-4244-4983-5
Type
conf
DOI
10.1109/ITW.2009.5351212
Filename
5351212
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