University of Oulu

E. N. Egashira, E. E. Benitez Olivo, D. P. Moya Osorio and H. Alves, "Secrecy Performance of Untrustworthy AF Relay Networks using Cooperative Jamming and SWIPT," 2019 IEEE 30th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Istanbul, Turkey, 2019, pp. 1-6, doi: 10.1109/PIMRC.2019.8904222

Secrecy performance of untrustworthy AF relay networks using cooperative jamming and SWIPT

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Author: Egashira, E. N.1; Benitez Olivo, E. E.1; Moya Osorio, D. P.2;
Organizations: 1São Paulo State University (UNESP), Campus of São João da Boa Vista, São João da Boa Vista-SP, Brazil
2Department of Electrical Engineering, Federal University of São Carlos, São Carlos-SP, Brazil
3Centre for Wireless Communications, University of Oulu, Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.2 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2019
Publish Date: 2020-06-16


In this paper, the secrecy outage performance of a three-node amplify-and-forward relay network with an untrustworthy relay is investigated. To enable a secure transmission, we consider a destination-based jamming technique to prevent the relay from successfully decoding the secret messages between the source and the destination. In addition, the relay is assumed to be an energy-constrained device, thus being first energized by the source in order to be able to retransmit the information to the destination. In doing so, a time switching-based simultaneous wireless information and power transfer scheme is used. A closed-form asymptotic expression for the secrecy outage probability is derived in order to obtain a tight approximation at medium-to-high signal-to-noise ratio. The accuracy of the performed analysis is corroborated by Monte Carlo simulations through different illustrative cases. Numerical results show the impact of key system parameters on the secrecy performance, such as the time allocation factor between the energy harvesting and information transmission phases, the power allocation factor between source and destination for cooperative jamming, and the relay position, so as to provide insights on the design criteria for energy efficient and secure networks.

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Series: IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications workshops
ISSN: 2166-9570
ISSN-E: 2166-9589
ISSN-L: 2166-9570
ISBN: 978-1-5386-8110-7
ISBN Print: 978-1-5386-8111-4
Pages: 1 - 6
Article number: 8904222
DOI: 10.1109/PIMRC.2019.8904222
Host publication: 2019 IEEE 30th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
Conference: IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brazil (CAPES) - Finance Code 001, the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, Proc. 421850/2018-3 and Proc. 428649/2016-5), the São Paulo Research Foundation (FAPESP, Proc. 17/20990-6), the Academy of Finland 6Genesis Flagship (grant 318927), and the EE-IoT (grant 319008).
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
319008 (Academy of Finland Funding decision)
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