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Article

Secrecy Outage Probability of a NOMA Scheme and Impact Imperfect Channel State Information in Underlay Cooperative Cognitive Networks

1
Department of Telecommunications, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech Republic
2
Department of Computer Networks and Data Communications, Eastern International University (EIU), Nam Ky Khoi Nghia, Binh Duong 75000, Vietnam
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(3), 895; https://doi.org/10.3390/s20030895
Received: 29 December 2019 / Revised: 30 January 2020 / Accepted: 3 February 2020 / Published: 7 February 2020
(This article belongs to the Section Sensor Networks)
Security performance and the impact of imperfect channel state information (CSI) in underlay cooperative cognitive networks (UCCN) is investigated in this paper. In the proposed scheme, relay R uses non-orthogonal multiple access (NOMA) technology to transfer messages e 1 , e 2 from the source node S to User 1 (U1) and User 2 (U2), respectively. An eavesdropper (E) is also proposed to wiretap the messages of U1 and U2. The transmission’s security performance in the proposed system was analyzed and performed over Rayleigh fading channels. Through numerical analysis, the results showed that the proposed system’s secrecy performance became more efficient when the eavesdropper node E was farther away from the source node S and the intermediate cooperative relay R. The secrecy performance of U1 was also compared to the secrecy performance of U2. Finally, the simulation results matched the Monte Carlo simulations well. View Full-Text
Keywords: non-orthogonal multiple access; physical layer security (PLS); cooperative communication; successive interference cancellation (SIC); decode-and-forward (DF); cognitive radio (CR); channel state information; outage probability non-orthogonal multiple access; physical layer security (PLS); cooperative communication; successive interference cancellation (SIC); decode-and-forward (DF); cognitive radio (CR); channel state information; outage probability
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MDPI and ACS Style

Huynh, T.-P.; Ha, D.-H.; Thanh, C.T.; Fazio, P.; Voznak, M. Secrecy Outage Probability of a NOMA Scheme and Impact Imperfect Channel State Information in Underlay Cooperative Cognitive Networks. Sensors 2020, 20, 895. https://doi.org/10.3390/s20030895

AMA Style

Huynh T-P, Ha D-H, Thanh CT, Fazio P, Voznak M. Secrecy Outage Probability of a NOMA Scheme and Impact Imperfect Channel State Information in Underlay Cooperative Cognitive Networks. Sensors. 2020; 20(3):895. https://doi.org/10.3390/s20030895

Chicago/Turabian Style

Huynh, Tan-Phuoc, Duy-Hung Ha, Cong T. Thanh, Peppino Fazio, and Miroslav Voznak. 2020. "Secrecy Outage Probability of a NOMA Scheme and Impact Imperfect Channel State Information in Underlay Cooperative Cognitive Networks" Sensors 20, no. 3: 895. https://doi.org/10.3390/s20030895

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