Visible to the public Secrecy Analysis for Energy Harvesting-Enabled Cognitive Radio Networks in Cascaded Fading Channels

TitleSecrecy Analysis for Energy Harvesting-Enabled Cognitive Radio Networks in Cascaded Fading Channels
Publication TypeConference Paper
Year of Publication2021
AuthorsTashman, Deemah H., Hamouda, Walaa
Conference NameICC 2021 - IEEE International Conference on Communications
Date Publishedjun
KeywordsCascaded general fading channels, Cognitive radio, cognitive radio networks, Cognitive Radio Security, energy harvesting, fading channels, full-duplex, probability, pubcrawl, radio networks, Receivers, reliability, resilience, Resiliency, security
AbstractPhysical-layer security (PLS) for an underlay cognitive radio network (CRN)-based simultaneous wireless information and power transfer (SWIPT) over cascaded k-u fading channels is investigated. The network is composed of a pair of secondary users (SUs), a primary user (PU) receiver, and an eavesdropper attempting to intercept the data shared by the SUs. To improve the SUs' data transmission security, we assume a full-duplex (FD) SU destination, which employs energy harvesting (EH) to extract the power required for generating jamming signals to be emitted to confound the eavesdropper. Two scenarios are presented and compared; harvesting and non-harvesting eavesdropper. Moreover, a trade-off between the system's secrecy and reliability is explored. PLS is studied in terms of the probability of non-zero secrecy capacity and the intercept probability, whereas the reliability is studied in terms of the outage probability. Results reveal the great impact of jamming over the improvement of the SUs' secrecy. Additionally, our work indicates that studying the system's secrecy over cascaded channels has an influence on the system's PLS that cannot be neglected.
Citation Keytashman_secrecy_2021