Clipping demapper for LDPC decoding in impulsive channel

Hassen Benmaad 1 Alban Goupil 1 Laurent Clavier 2, 3, 4 Guillaume Gelle 1
1 CRESTIC - Centre de Recherche en Sciences et Technologies de l'Information et de la Communication - EA 3804
2 Institut TELECOM/TELECOM Lille1
3 IEMN - Institut d’Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520
4 IRCICA - Institut de Recherche sur les Composants logiciels et matériels pour l'Information et la Communication Avancé
Abstract : This paper deals with the performance of Low-Density Parity-Check codes in impulsive interference modeled by α-stable random variables. In case of α-stable noise, the optimal inputs of the belief propagation decoder are complex to obtain. We propose to use the simple clipping approach that reduces the impact of large noise values. Our main contribution is to give three different approaches to obtain the parameters of the clipping function and to assess the performance of the decoder. We show that a look-up table whose values are pre-determined, thanks to the Density Evolution tool, is the most efficient approach.
Keywords : LDPC codes α-stable interference density evolution clipping
Document type :
Journal articles
Complete list of metadatas

Cited literature [11 references]  Display  Hide  Download
https://hal-imt.archives-ouvertes.fr/hal-00851898
Contributor : Laurent Clavier <>
Submitted on : Monday, August 19, 2013 - 10:51:49 AM
Last modification on : Friday, October 25, 2019 - 2:34:05 PM
Long-term archiving on: Wednesday, November 20, 2013 - 4:14:21 AM

File

06486528.pdf
Publisher files allowed on an open archive

Identifiers

Collections

CNRS | INSTITUT-TELECOM | IEMN | URCA | CRESTIC | IMT-LILLE-DOUAI | UNIV-LILLE | UNIV-VALENCIENNES

Citation

Hassen Benmaad, Alban Goupil, Laurent Clavier, Guillaume Gelle. Clipping demapper for LDPC decoding in impulsive channel. IEEE Communications Letters, Institute of Electrical and Electronics Engineers, 2013, 17 (5), pp.968-971. ⟨10.1109/LCOMM.2013.031913.130060⟩. ⟨hal-00851898⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

1169

Files downloads

1737

Contact

Informations

CCSD