Delay-constrained joint source-channel coding using incremental redundancy with feedback

A. Kwasinski, V. Chande, N. Farvardin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

We present a joint source-channel coding scheme based on incremental redundancy and feedback for transmission of real-time sources over wireless channels under strict delay constraints. The proposed scheme operates at constant bit rate and delay so as to capture the benefits of a feedback channel, while keeping the synchronous nature of pure forward error correction systems. We formulate the underlying Markov chain by introducing the notion of codetype and present a design algorithm for channel and source rate allocation. We present simulation results for speech transmission and show gains of up to 1 dB over pure FEC systems. We also present an application to CDMA networks and show increases of up to 28 % in the number of calls that can be simultaneously supported.

Original languageEnglish
Title of host publicationProceedings - 2003 IEEE Information Theory Workshop, ITW 2003
Pages283-286
Number of pages4
ISBN (Electronic)0780377990, 9780780377998
DOIs
StatePublished - 2003
Event2003 IEEE Information Theory Workshop, ITW 2003 - Paris, France
Duration: 31 Mar 20034 Apr 2003

Publication series

NameProceedings - 2003 IEEE Information Theory Workshop, ITW 2003

Conference

Conference2003 IEEE Information Theory Workshop, ITW 2003
Country/TerritoryFrance
CityParis
Period31/03/034/04/03

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