| Title | A Stochastic Method to Physical Layer Security of an Amplify-and-Forward Spectrum Sensing in Cognitive Radio Networks: Secondary User to Relay |
| Publication Type | Conference Paper |
| Year of Publication | 2019 |
| Authors | Simpson, Oluyomi, Sun, Yichuang |
| Conference Name | 2019 15th International Wireless Communications Mobile Computing Conference (IWCMC) |
| Date Published | jun |
| Keywords | active SUs, AF-CSS-CRN, amplify and forward communication, Amplify-and-Forward, amplify-and-forward cooperative spectrum sensing, average secrecy rate, Cognitive radio, Cognitive Radio Network, cognitive radio networks, Communication system security, composability, compressed sensing, cooperative communication, correlated AP, CRN network, fading channels, fusion center, Interference, malicious eavesdropping secondary users, Metrics, physical layer security, pubcrawl, radio spectrum management, Relays, resilience, Resiliency, secondary user, secure transmission, security, sensing data, sensor fusion, Sensors, stochastic geometry, stochastic method, telecommunication security, Wireless communication |
| Abstract | In this paper, a framework for capitalizing on the potential benefits of physical layer security in an amplify-and-forward cooperative spectrum sensing (AF-CSS) in a cognitive radio network (CRN) using a stochastic geometry is proposed. In the CRN network the sensing data from secondary users (SUs) are collected by a fusion center (FC) with the help of access points (AP) as relays, and when malicious eavesdropping secondary users (SUs) are listening. We focus on the secure transmission of active SUs transmitting their sensing data to the AP. Closed expressions for the average secrecy rate are presented. Numerical results corroborate our analysis and show that multiple antennas at the APs can enhance the security of the AF-CSS-CRN. The obtained numerical results show that average secrecy rate between the AP and its correlated FC decreases when the number of AP is increased. Nevertheless, we find that an increase in the number of AP initially increases the overall average secrecy rate, with a perilous value at which the overall average secrecy rate then decreases. While increasing the number of active SUs, there is a decrease in the secrecy rate between the sensor and its correlated AP. |
| DOI | 10.1109/IWCMC.2019.8766452 |
| Citation Key | simpson_stochastic_2019 |
A Stochastic Method to Physical Layer Security of an Amplify-and-Forward Spectrum Sensing in Cognitive Radio Networks: Secondary User to Relay