Distortion lower bounds for finite dimensional joint source-channel coding

Amir Ingber, Itai Leibowitz, Ram Zamir, Meir Feder

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

Abstract

In this work we consider joint source-channel coding (JSCC) schemes that are limited to work in blocks of nite length. We focus on the high resolution and high signal to noise ratio (SNR) regime, and derive new lower bounds for the distortion of JSCC schemes over rth-moment constrained additive noise channels. These new bounds are based on the method of Ziv and Zakai[11], combined with the Rényi information measure, as was recently proposed by Leibowitz and Zamir[5]. Numerical results are presented for the case of Gaussian source and channel, and it is shown that the new bounds improve upon Shannon's original bound in several cases, including bandwidth expansion and reduction.

Original languageEnglish
Title of host publicationProceedings - 2008 IEEE International Symposium on Information Theory, ISIT 2008
Pages1183-1187
Number of pages5
DOIs
StatePublished - 2008
Event2008 IEEE International Symposium on Information Theory, ISIT 2008 - Toronto, ON, Canada
Duration: 6 Jul 200811 Jul 2008

Publication series

NameIEEE International Symposium on Information Theory - Proceedings
ISSN (Print)2157-8101

Conference

Conference2008 IEEE International Symposium on Information Theory, ISIT 2008
Country/TerritoryCanada
CityToronto, ON
Period6/07/0811/07/08

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