Secure Full-Duplex Cognitive Relay Networks with Optimal Relay Selection Scheme

Nam Phong Nguyen, Chinmoy Kundu, Van Dinh Nguyen, Quang Duong, Lisheng Fan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)


In this paper, we investigate the secure communication of cognitive full-duplex relay networks in the presence of multiple eavesdroppers and multiple primary receivers. In the considered network, multiple full-duplex relays are deployed to transfer information in the secondary network, under the malicious attempts of non- colluding/colluding eavesdroppers. Meanwhile, the transmit powers of secondary transmitters are constrained by the quality-of-service of the primary network. The optimal relay selection scheme is proposed to enhance the secrecy performance of the considered system. We study the secrecy performance by providing the exact closed- form and asymptotic expressions of the proposed system secrecy outage probability. We have demonstrated that increasing the number of full- duplex relays can improve the security performance. At the illegitimate side, using colluding eavesdroppers and increasing the number of eavesdroppers put information confidentiality at a greater risk. Besides, the transmit power and the desired outage probability of the primary network have great influences on the secrecy outage probability of the secondary network.
Original languageEnglish
Title of host publicationIEEE Global Communications Conference (GLOBECOM 2016)
Place of PublicationWashington, DC, USA
Publisher IEEE
ISBN (Electronic)978-1-5090-1328-9
ISBN (Print)978-1-5090-1329-6
Publication statusPublished - 06 Feb 2017


Dive into the research topics of 'Secure Full-Duplex Cognitive Relay Networks with Optimal Relay Selection Scheme'. Together they form a unique fingerprint.

Cite this