DocumentCode
169407
Title
Non-uniform spatial coupling
Author
Jardel, Fanny ; Boutros, Joseph J.
Author_Institution
Communicating Syst. Lab., CEA, Gif-sur-Yvette, France
fYear
2014
fDate
2-5 Nov. 2014
Firstpage
446
Lastpage
450
Abstract
A new method for spatial coupling of low-density parity-check ensembles is proposed. The method is inspired from overlapped layered coding. Edges of local ensembles and those defining the spatial coupling are separately built. The new method allows the construction of non-uniform coupling chains with near-Shannon spatially-varying thresholds under iterative decoding. A direct application of non-uniform spatial coupling is unequal error protection of information.
Keywords
iterative decoding; parity check codes; iterative decoding; local ensemble edges; low-density parity-check ensembles; near-Shannon spatially-varying thresholds; nonuniform spatial coupling chains; overlapped layered coding; unequal error protection; Channel coding; Convolutional codes; Couplings; Equations; Iterative decoding;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Theory Workshop (ITW), 2014 IEEE
Conference_Location
Hobart, TAS
ISSN
1662-9019
Type
conf
DOI
10.1109/ITW.2014.6970871
Filename
6970871
Link To Document