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Physical Layer Security vs. Network Layer Secrecy: Who Wins on the Untrusted Two-Way Relay Channel?

We consider the problem of secure communications in a Gaussian two-way relay network where two nodes exchange confidential messages only via an untrusted relay. The relay is assumed to be honest but curious, i.e., an eavesdropper that conforms to the system rules and applies the intended relaying scheme. We analyze the achievable secrecy rates by applying network coding on the physical layer or the network layer and compare the results in terms of complexity, overhead, and efficiency. Further, we discuss the advantages and disadvantages of the respective approaches.

Identiferoai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:28133
Date January 2013
CreatorsRichter, Johannes, Franz, Elke, Engelmann, Sabrina, Pfennig, Stefan, Jorswieck, Eduard A.
PublisherTechnische Universität Dresden
Source SetsHochschulschriftenserver (HSSS) der SLUB Dresden
LanguageEnglish
Detected LanguageEnglish
Typedoc-type:conferenceObject, info:eu-repo/semantics/conferenceObject, doc-type:Text
SourceIEEE 18th International Workshop on Computer Aided Modeling and Design of Communication Links and Networks, CAMAD 2013, Berlin, Germany, September 25-27, 2013, pp. 164 - 168
Rightsinfo:eu-repo/semantics/openAccess
Relation10.1109/CAMAD.2013.6708110

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