Conferences: Non-linear graph-based codes for source coding
D. Matas, M. Lamarca Orozco and J. Garcia-Frias


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.

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Signal Processing and Communications group
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