Secrecy outage probability of inter‐vehicular cognitive radio networks. (29th November 2019)

• Record Type: Journal Article
• Authors: Ata, Serdar Özgür; Erdogan, Eylem
• Is Part Of: International journal of communication systems. Volume 33:Number 4(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-11-29
• Subjects: cascaded fading channels -- cognitive radio network -- secrecy outage probability; Telecommunication systems -- Periodicals; 621.382
• DOI: 10.1002/dac.4244
• Languages: English
• ISSNs: 1074-5351

Abstract

Summary: Herein, we consider an underlay cognitive radio network (CRN) where mobile secondary user wishes to transmit a confidential information to the secondary destination in the presence of an illegitimate eavesdropper which is trying to steal the classified message signal. The proposed scenario can be viable for a secondary safety task force working with a primary regiment, which wishes to transmit the confidential information to the commander while an eavesdropper is trying to intercept the classified information. In the analysis, two novel power allocation methods are considered by assuming perfect and limited feedback channels of the primary network, and for both methods, exact and asymptotic expressions of secrecy outage probability (SOP) are derived for N *Nakagami‐ m fading channels which are used to model fading channels such as mobile‐to‐mobile/vehicle‐to‐vehicle communication systems where the nodes are moving into a rich scattering environment. We further verified our analytic results through Monte‐Carlo simulations. It is shown from the numerical results that the cascading degree of the channels has a worsening effect on the secrecy outage performance of the CRN systems. Abstract : As an ingredient of the 5G+ wireless networks, security of smart cars on roads will be one of the crucial objectives for the technology enablers, since wireless communication systems inherently have security vulnerabilities against malicious users due to the open‐access nature of the air. From this perspective, we investigated the secrecy performance of vehicular underlay CRNs over N *Nakagami‐ m fading channels and obtained the exact and asymptotic secrecy outage probabilities for the availability of perfect and limited feedback channels of the primary network.