Antenna switching for security enhancement in full-duplex wiretap channels

Shihao Yan, Nan Yang, Robert Malaney, Jinhong Yuan

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    14 Citations (Scopus)

    Abstract

    We propose an antenna switching scheme in the full-duplex wiretap channel where the legitimate receiver, equipped with two antennas, operates in a full-duplex mode. We focus on a practical eavesdropping scenario where the instantaneous channel state information of the eavesdropper's channel is not available at the transmitter and the receiver. In our proposed scheme, the receiver selects the antenna that maximizes the main channel gain as the receive antenna and uses the remaining antenna to transmit jamming signals. We derive an exact expression for the secrecy outage probability to evaluate the secrecy performance of our new scheme. This expression allows us to quantify the secrecy performance gain of our proposed scheme relative to a standard antenna predetermination scheme where the receive and transmit antennas at the receiver are predetermined. We demonstrate that our scheme achieves a lower secrecy outage probability than the antenna predetermination scheme. We also show that our scheme achieves the full secrecy diversity order whereas the antenna predetermination scheme does not.

    Original languageEnglish
    Title of host publication2014 IEEE Globecom Workshops, GC Wkshps 2014
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages1308-1313
    Number of pages6
    ISBN (Electronic)9781479974702
    DOIs
    Publication statusPublished - 18 Mar 2014
    Event2014 IEEE Globecom Workshops, GC Wkshps 2014 - Austin, United States
    Duration: 8 Dec 201412 Dec 2014

    Publication series

    Name2014 IEEE Globecom Workshops, GC Wkshps 2014

    Conference

    Conference2014 IEEE Globecom Workshops, GC Wkshps 2014
    Country/TerritoryUnited States
    CityAustin
    Period8/12/1412/12/14

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