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On secure source coding with side information at the encoder
Institute for Infocomm Research, Singapore.
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
2013 (English)In: 2013 IEEE International Symposium on Information Theory Proceedings (ISIT), IEEE, 2013, 2204-2208 p.Conference paper (Refereed)
Abstract [en]

We consider a secure source coding problem with side informations at the decoder and the eavesdropper. The encoder has a source that it wishes to describe with limited distortion through a rate-limited link to a legitimate decoder. The message sent is also observed by the eavesdropper. The encoder aims to minimize both the distortion incurred by the legitimate decoder; and the information leakage rate at the eavesdropper. When the encoder has access to the side information (S.I.) at the decoder, we characterize the rate-distortion-information leakage rate (R.D.I.) region under a Markov chain assumption and when S.I. at the encoder does not improve the rate-distortion region as compared to the case when S.I. is absent. We then extend our setting to consider the case where the encoder and decoder obtain coded S.I. through a rate-limited helper, and characterize the R.D.I. region for several special cases under logarithmic loss distortion (log-loss). Finally, we consider the case of list or entropy constraints at the decoder and show that the R.D.I. region coincides with R.D.I. region under log-loss.

Place, publisher, year, edition, pages
IEEE, 2013. 2204-2208 p.
, IEEE International Symposium on Information Theory - Proceedings, ISSN 2157-8095
Keyword [en]
Information leakage, Leakage rates, Logarithmic loss, Rate distortion region, Side information, Source-coding
National Category
Communication Systems
URN: urn:nbn:se:kth:diva-134834DOI: 10.1109/ISIT.2013.6620617ScopusID: 2-s2.0-84890368497OAI: diva2:668259
2013 IEEE International Symposium on Information Theory, ISIT 2013; Istanbul, Turkey, 7-12 July, 2013

QC 20140312

Available from: 2013-11-29 Created: 2013-11-29 Last updated: 2014-03-12Bibliographically approved

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Kittichokechai, Kittipong
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