Design of capacity-approaching irregular low-density parity-check codes

We design low-density parity-check (LDPC) codes that perform at rates extremely close to the Shannon capacity. The codes are built from highly irregular bipartite graphs with carefully chosen degree patterns on both sides. Our theoretical analysis of the codes is based on the work of Richardson and...

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Bibliographic Details
Published in:IEEE transactions on information theory Vol. 47; no. 2; pp. 619 - 637
Main Authors: Richardson, T.J., Shokrollahi, M.A., Urbanke, R.L.
Format: Journal Article
Language:English
Published: New York IEEE 01.02.2001
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Algorithms
Asymptotic properties
Binary system
Codes
Density
Design engineering
Error detection coding
Graphs
Messages
Optimization
Strategy
Symmetry
ISSN:0018-9448, 1557-9654
Online Access:Get full text
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