Paper Info
Title
Low-complexity layered BP-based detection and decoding for a NB-LDPC coded MIMO system
Abstract
In this paper, the combination of a low-complexity Multiple-input Multiple-output based on belief propagation (MIMO-BP) detector with a Non-Binary Low-Density Parity-Check (NB-LDPC) decoder is investigated. Such detection and decoding algorithms can enable an equivalent representation based on a larger Joint Factor Graph (JFG). Shuffle schedule can therefore be used jointly and simultaneously on the detector and the decoder. Actions are undertaken at the detector, decoder and the iterative receiver levels in order to reduce overall complexity. Indeed, applying the proposed low-complexity BP-based detection greatly reduces the number of operations per iteration (divided by ten), with a negligible performance penalty. EXtrinsic Information Transfer (EXIT) charts enable to analyze the convergence behaviour of the proposed iterative receiver. This analysis is used to find the best set of parameters enabling a detection-decoding process with a performance closest to the full-complexity system.
Year
DOI
Venue
2014
10.1109/ICC.2014.6884131
Communications
Keywords
Field
DocType
MIMO communication,decoding,graph theory,iterative methods,parity check codes,signal detection,EXIT charts,JFG,NB-LDPC coded MIMO system,belief propagation detector,convergence behaviour,detection-decoding process,extrinsic information transfer charts,full-complexity system,iterative receiver levels,joint factor graph,low-complexity layered BP-based detection,low-complexity multiple-input multiple-output system,nonbinary low-density parity-check decoder,performance penalty
Convergence (routing),Factor graph,Information transfer,Low-density parity-check code,Computer science,MIMO,Real-time computing,Decoding methods,Detector,Belief propagation
Conference
ISSN
Citations 
PageRank 
1550-3607
1
0.37
References 
Authors
0
4
Name
Order
Citations
PageRank
Ali Haroun151.17
Charbel Abdel Nour215223.78
Matthieu Arzel36915.10
Christophe Jégo410.37