Hybrid digital/analog schemes for secure transmission with side information

Joffrey Villard, Pablo Piantanida, Shlomo Shamai

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

Abstract

Recent results on source-channel coding for secure transmission show that separation holds in several cases under some less-noisy conditions. However, it has also been proved through a simple counterexample that pure analog schemes can be optimal and hence outperform digital ones. According to these observations and assuming matched-bandwidth, we present a novel hybrid digital/analog scheme that aims to gather the advantages of both digital and analog ones. In the quadratic Gaussian setup when side information is only present at the eavesdropper, this strategy is proved to be optimal. Furthermore, it outperforms both digital and analog schemes and cannot be achieved via time-sharing. An application example to binary symmetric sources with side information is also investigated.

Original languageEnglish
Title of host publication2011 IEEE Information Theory Workshop, ITW 2011
Pages678-682
Number of pages5
DOIs
StatePublished - 2011
Event2011 IEEE Information Theory Workshop, ITW 2011 - Paraty, Brazil
Duration: 16 Oct 201120 Oct 2011

Publication series

Name2011 IEEE Information Theory Workshop, ITW 2011

Conference

Conference2011 IEEE Information Theory Workshop, ITW 2011
Country/TerritoryBrazil
CityParaty
Period16/10/1120/10/11

All Science Journal Classification (ASJC) codes

  • Information Systems

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