Non-linear graph-based codes for source coding

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Title:	Non-linear graph-based codes for source coding
Author:	Matas Navarro, David; Lamarca Orozco, M. Meritxell; García Frías, Javier
Other authors:	Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions
Abstract:	We introduce a new family of graph-based source codes that can be regarded as a nonlinear generalization of LDPC codes, and apply them to the compression of asymmetric binary memoryless sources. Simulation results and the application of density evolution show that the proposed family presents a performance very close to the theoretical limits, clearly outperforming schemes based on linear codes.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal -Graph theory -Source coding -Information theory -Grafs, Teoria de -- Informàtica -Informació, Teoria de la
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Document type:	Article - Published version Conference Object
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