Asymptotic performance of LDPC codes in impulsive non-Gaussian channel
Hassen Ben Maad, Alban Goupil, Laurent Clavier, Guillaume Gellé · 2010
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.