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Combining FEC and optimal soft-input source decoding for the reliable transmission of correlated variable-length encoded signals
University of Kiel. (Institute for Circuits and Systems Theory)
University of Kiel. (Institute for Circuits and Systems Theory)ORCID-id: 0000-0001-9307-484X
2002 (engelsk)Inngår i: DATA COMPRESSION CONFERENCE, PROCEEDINGS, 2002, s. 83-91Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

In this paper we utilize both the implicit residual source correlation and the explicit redundancy from a forward-error-correction (FEC) scheme for the error protection of packetized variable-length encoded source indices. The implicit source correlation is exploited in a novel symbol-based soft-input a-posteriori probability (APP) decoder, which leads to an optimal decoding process in combination with a mean-squares or maximum a-posteriori probability estimation of the reconstructed source signal. When additionally the variable-length encoded source data is protected by channel codes, an iterative source-channel decoder can be obtained in the same way as for serially concatenated codes, where the outer constituent decoder is replaced by the proposed APP source decoder. Simulation results show that by additionally considering the correlations between the variable-length encoded source indices the error-correction performance can be highly increased.

sted, utgiver, år, opplag, sider
2002. s. 83-91
Serie
IEEE data compression conference, ISSN 1068-0314
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-29033ISI: 000176011500009ISBN: 0-7695-1477-4 (tryckt)OAI: oai:DiVA.org:kth-29033DiVA, id: diva2:394002
Konferanse
Data Compression Conference (DCC 2002) SNOWBIRD, UT, APR 02-04, 2002
Merknad
QC 20110201 NR 20140804Tilgjengelig fra: 2011-02-01 Laget: 2011-01-25 Sist oppdatert: 2018-01-12bibliografisk kontrollert

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  • en-GB
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