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 Lossy source coding using belief propagation and soft-decimation over LDGM codes
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/8344

title: Lossy source coding using belief propagation and soft-decimation over LDGM codes
authors: Castanheira, D.
Gameiro, A.
issue date: 2010
publisher: IEEE
abstract: This paper focus on the lossy compression of a binary symmetric source. We propose a new algorithm for binary quantization over low density generator matrix (LDGM) codes. The proposed algorithm is a modified version of the belief propagation (BP) algorithm used in the channel coding framework and has linear complexity in the code block length. We also provide a common framework under which the proposed algorithm and some previously proposed algorithms fit. Simulation results show that our scheme achieves close to state-of-the-art performance with reduced complexity.
URI: http://hdl.handle.net/10773/8344
ISBN: 978-1-4244-8017-3
publisher version/DOI: http://dx.doi.org/10.1109/PIMRC.2010.5671884
source: PIMRC 2010: IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications
appears in collectionsDETI - Comunicações

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