Paper Info
Title
Spatial coupling for distributed storage and diversity applications
Abstract
Low-density parity-check codes are considered for erasure channels, mainly Root-LDPC codes that include a special type of checknodes. Spatial coupling is applied on parity bits of a Root-LDPC ensemble designed for a channel with 4 block-erasure states and a maximal design rate of 3/4 attaining double diversity. The advantage of spatial coupling is shown in the erasure plane as an improvement of a threshold boundary, under independent erasures. The spatial coupling maintains the double diversity because it connects parity bits only. The drawback of this partial coupling is a weak saturation of the threshold boundary towards the capacity boundary.
Year
DOI
Venue
2015
10.1109/COMNET.2015.7566624
2015 5th International Conference on Communications and Networking (COMNET)
Keywords
Field
DocType
spatial coupling,distributed storage,low-density parity-check codes,root-LDPC codes,4 block-erasure,capacity boundary
Parity bit,Topology,Saturation (chemistry),Sequential decoding,Coupling,Computer science,Distributed data store,Communication channel,Theoretical computer science,Real-time computing,Encoding (memory),Erasure
Conference
ISBN
Citations 
PageRank 
978-1-5090-0197-2
0
0.34
References 
Authors
12
5
Name
Order
Citations
PageRank
Fanny Jardel120.74
Joseph Jean Boutros222824.65
Volkan Dedeoglu3246.83
Mireille Sarkiss4298.79
Ghaya Rekaya-Ben Othman516422.84