The multiple access channel with an untrusted relay

Ahmed A. Zewail, Aylin Yener

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    5 Scopus citations

    Abstract

    This paper considers a Gaussian multiple access channel aided by a relay. Specifically, the relay facilitates communication between multiple sources and a destination to which the sources have no direct link. In this set up, the relay node is considered to be untrusted, i.e., honest but curious, from whom the source messages need to be kept secret. We identify an achievable secrecy rate region utilizing cooperative jamming from the destination, and using compress-and-forward at the relay. Additionally, an outer bound on the secrecy rate region is derived. Numerical results indicate that the outer bound is tight in some cases of interest.

    Original languageEnglish (US)
    Title of host publication2014 IEEE Information Theory Workshop, ITW 2014
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages25-29
    Number of pages5
    ISBN (Electronic)9781479959990
    DOIs
    StatePublished - Dec 1 2014
    Event2014 IEEE Information Theory Workshop, ITW 2014 - Hobart, Australia
    Duration: Nov 2 2014Nov 5 2014

    Publication series

    Name2014 IEEE Information Theory Workshop, ITW 2014

    Other

    Other2014 IEEE Information Theory Workshop, ITW 2014
    CountryAustralia
    CityHobart
    Period11/2/1411/5/14

    All Science Journal Classification (ASJC) codes

    • Information Systems
    • Computer Networks and Communications

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