Asymptotic performance of LDPC codes in impulsive non-Gaussian channel

Advancements in channel coding theory over the past decades have been accomplished considering simple channel such as Additive White Gaussian Noise channels. Much less is known about the consequences when the standard Gaussian assumption is not fulfilled in realistic environments and, more important...

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Bibliographic Details
Published in2010 IEEE 11th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) pp. 1 - 5
Main Authors Ben Mâad, Hassen, Goupil, Alban, Clavier, Laurent, Gelle, Guillaume
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2010
Subjects
channel capacity
Density Evolution
Detectors
Hip
LDPC codes
non-Gaussian channel
Parity check codes
symmetric alpha-stable noise
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Summary:Advancements in channel coding theory over the past decades have been accomplished considering simple channel such as Additive White Gaussian Noise channels. Much less is known about the consequences when the standard Gaussian assumption is not fulfilled in realistic environments and, more importantly, the appropriate countermeasures. This paper studies and analyzes the performance of low-density parity-check codes (LDPC) in heavy-tailed, non-Gaussian noise channels that can be well adapted to impulsive noise modeling. This non-Gaussian noise are modeled by an indefinite variance symmetric alpha stable noise and the channel is Additive White Symmetric Alpha-Stable Noise channel. The asymptotic Performances of LDPC codes using different demappers over this channel and its capacity are proposed and studied.
ISBN:1424469902
9781424469901
ISSN:1948-3244
1948-3252
DOI:10.1109/SPAWC.2010.5670974