Secure Communications With a Full-Duplex Relay Network Under Residual Self-Interference

Park, Junguk; Yun, Sangseok; Kim, Il-Min; Ha, Jeongseok

doi:10.1109/lcomm.2019.2958809

Cited by 5 publications

(2 citation statements)

References 18 publications

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“…PHY-security aspects have been thoroughly investigated in the literature for various network scenarios under different fading channels without considering the cognitive framework [11][12][13][14][15][16][17][18][19][20]. Furthermore, the authors in [21] have proposed a machine-learning-based method to locate the vehicles generating jamming signals by monitoring the physical channel parameters of the vehicles in the vehicular networks.…”

Section: Related Workmentioning

confidence: 99%

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Secure Cognitive Radio-Enabled Vehicular Communications under Spectrum-Sharing Constraints

Yadav

Pandey

et al. 2021

Sensors

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Vehicular communication has been envisioned to support a myriad of essential fifth-generation and beyond use-cases. However, the increasing proliferation of smart and intelligent vehicles has generated a lot of design and infrastructure challenges. Of particular interest are the problems of spectrum scarcity and communication security. Consequently, we considered a cognitive radio-enabled vehicular network framework for accessing additional radio spectrum and exploit physical layer security for secure communications. In particular, we investigated the secrecy performance of a cognitive radio vehicular network, where all the nodes in the network are moving vehicles and the channels between them are modeled as double-Rayleigh fading. Furthermore, adopting an underlay approach, the communication between secondary nodes can be performed by employing two interference constraint strategies at the primary receiver; (1) Strategy I: the secondary transmitter power is constrained by the interference threshold of the primary receiver, and (2) Strategy II: the secondary transmitter power is constrained by both the interference threshold of the primary receiver and the maximum transmit power of the secondary network. Under the considered strategies, we derive the exact secrecy outage probability (SOP) and ergodic secrecy capacity (ESC) expressions over double-Rayleigh fading. Moreover, by analyzing the asymptotic SOP behavior, we show that a full secrecy diversity of 1 can be achieved, when the average channel gain of the main link goes to infinity with a fixed average wiretap channel gain. From the ESC analysis, it is revealed that the ESC follows a scaling law of ΘlnΩm2Ωe2 for large Ωm and Ωe, where Ωm and Ωe are the average channel gains of the main link and wiretap link. The numerical and simulation results verify our analytical findings.

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Section: Related Workmentioning

confidence: 99%

“…( 6.561.16)) of [48] and (eq. ( 6.561.8)) of [48], as presented in (14). Moreover, I 1b in (A3) can be evaluated by first applying the change of variables y η − (η−1)w ηρ = t and ηt λ m = r and the transformation K ν (…”

Section: Appendix Amentioning

confidence: 99%