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The CEO Problem With Secrecy Constraints
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0002-9853-2608
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0002-7926-5081
2015 (English)In: IEEE Transactions on Information Forensics and Security, ISSN 1556-6013, E-ISSN 1556-6021, Vol. 10, no 6Article in journal (Refereed) Published
Abstract [en]

We study a lossy source coding problem with secrecy constraints in which a remote information source should be transmitted to a single destination via multiple agents in the presence of a passive eavesdropper. The agents observe noisy versions of the source and independently encode and transmit their observations to the destination via noiseless rate-limited links. The destination should estimate the remote source based on the information received from the agents within a certain mean distortion threshold. The eavesdropper, with access to side information correlated to the source, is able to listen in on one of the links from the agents to the destination in order to obtain as much information as possible about the source. This problem can be viewed as the so-called CEO problem with additional secrecy constraints. We establish inner and outer bounds on the ratedistortion- equivocation region of this problem. We also obtain the region in special cases where the bounds are tight. Furthermore, we study the quadratic Gaussian case and provide the optimal rate-distortion-equivocation region when the eavesdropper has no side information and an achievable region for a more general setup with side information at the eavesdropper.

Place, publisher, year, edition, pages
IEEE Signal Processing Society, 2015. Vol. 10, no 6
Keyword [en]
CEO problem, multiterminal source coding, secrecy constraints, eavesdropping, equivocation
National Category
Telecommunications Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-160158DOI: 10.1109/TIFS.2015.2404134ISI: 000353901400003Scopus ID: 2-s2.0-84928978594OAI: oai:DiVA.org:kth-160158DiVA: diva2:788970
Note

Updated from accepted to published.

QC 20150430

Available from: 2015-02-17 Created: 2015-02-17 Last updated: 2017-12-04Bibliographically approved

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Naghibi, FarshadSkoglund, Mikael

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