Outage optimal relay selection strategy using destination-based jamming for secure communication in amplify-and-forward relay networks

Sarbani Ghose, Ranjan Bose

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

1 Scopus citations

Abstract

In this paper, we consider a two-hop wireless system consisting of one source, one destination, one eavesdropper and multiple amplify-and-forward relays. A time-division duplex scheme is proposed that aims at minimizing the secrecy rate outage by selecting an optimal relay from the set of candidate relays. In the first time slot, the source transmits the information bearing signal, meanwhile the destination jams the eavesdropper. In the second slot, the selected relay forwards the received signals in amplify-and-forward fashion. Out of two hops, the eavesdropper can tap only the signal transmitted by the relay in the second hop. We obtain a closed-form expression of the end-to-end secrecy outage for instantaneous and statistical channel-state information of the eavesdropper. The analytical results suggest that the proposed destination-based jamming outperforms the conventional relay selection scheme without jamming. Monte Carlo simulations are performed to verify the analytical results.

Original languageEnglish
Title of host publication2014 IEEE Workshop on Statistical Signal Processing, SSP 2014
PublisherIEEE Computer Society
Pages404-407
Number of pages4
ISBN (Print)9781479949755
DOIs
StatePublished - 2014
Externally publishedYes
Event2014 IEEE Workshop on Statistical Signal Processing, SSP 2014 - Gold Coast, QLD, Australia
Duration: Jun 29 2014Jul 2 2014

Publication series

NameIEEE Workshop on Statistical Signal Processing Proceedings

Conference

Conference2014 IEEE Workshop on Statistical Signal Processing, SSP 2014
Country/TerritoryAustralia
CityGold Coast, QLD
Period06/29/1407/2/14

Keywords

  • amplify-and-forward relay
  • cooperative jamming
  • relay networks
  • relay selection
  • Secrecy outage

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