DocumentCode
2189668
Title
Analysis of LDPC Codes for Compression of Nonuniform Sources with Side Information Using Density Evolution
Author
Bhattar, Raghunadh K. ; Ramakrishnan, R.K. ; Dasgupta, S.K.
Author_Institution
IISc, Bangalore, India
fYear
2010
fDate
24-26 March 2010
Firstpage
522
Lastpage
522
Abstract
In this paper, we explore the use of LDPC codes for nonuniform sources under distributed source coding paradigm. Our analysis reveals that several capacity approaching LDPC codes indeed do approach the Slepian-Wolf bound for nonuniform sources as well. The Monte Carlo simulation results show that highly biased sources can be compressed to 0.049 bits/sample away from Slepian-Wolf bound for moderate block lengths.
Keywords
Monte Carlo methods; parity check codes; source coding; LDPC code; Monte Carlo simulation; Slepian-Wolf bound; density evolution; distributed source coding; nonuniform sources compression; Data analysis; Data compression; Decoding; Entropy coding; Facsimile; Information analysis; Parity check codes; Probability density function; Source coding; Turbo codes;
fLanguage
English
Publisher
ieee
Conference_Titel
Data Compression Conference (DCC), 2010
Conference_Location
Snowbird, UT
ISSN
1068-0314
Print_ISBN
978-1-4244-6425-8
Electronic_ISBN
1068-0314
Type
conf
DOI
10.1109/DCC.2010.65
Filename
5453501
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