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
Author: 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.
Peer review: yes
URI: http://hdl.handle.net/10773/8344
DOI: 10.1109/PIMRC.2010.5671884
ISBN: 978-1-4244-8017-3
Publisher Version: http://www.scopus.com/inward/record.url?eid=2-s2.0-78751506444&partnerID=40&md5=426e119837d9b3bae4be256d9b1b332e
Appears in Collections:DETI - Comunicações

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