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Cooperation for secrecy in presence of an active eavesdropper: A game-theoretic analysis
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: 0000-0001-9307-484X
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0002-7926-5081
2011 (English)In: 8th International Symposium on Wireless Communication Systems (ISWCS), 2011, 2011, 281-285 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, we investigate a four single-antenna node network, constituted of a transmitter, a receiver, a cooperative node and a wiretapper. The wiretapper has the ability to eavesdrop the communication or disrupt the transmission by jamming. This results in both cases in the decrease of the secrecy rate. The cooperative node on the other hand aims to improve secrecy by either relaying or jamming. We investigate the secrecy performance of the decode-and-forward and cooperative jamming strategies against this kind of adversary. To model the interaction between the helper and the wiretapper, we define an extensive form game, for which we derive the pure and mixed strategies equilibria. Finally, we compare the performance of the schemes and we analyze the equilibrium outcomes through simulation results.

Place, publisher, year, edition, pages
2011. 281-285 p.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-69994DOI: 10.1109/ISWCS.2011.6125354Scopus ID: 2-s2.0-84857490615OAI: oai:DiVA.org:kth-69994DiVA: diva2:485701
Conference
8th International Symposium on Wireless Communication Systems (ISWCS), 2011. Aachen. 6-9 Nov. 2011
Funder
ICT - The Next Generation
Note
QC 20120413Available from: 2012-01-29 Created: 2012-01-29 Last updated: 2012-06-13Bibliographically approved

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Thobaben, RagnarSkoglund, Mikael

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