A Stochastic Method to Physical Layer Security of an Amplify-and-Forward Spectrum Sensing in Cognitive Radio Networks: Secondary User to Relay

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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.
Original languageEnglish
Title of host publication2019 15th International Wireless Communications and Mobile Computing Conference, IWCMC 2019
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages197-202
Number of pages6
ISBN (Electronic)9781538677476
DOIs
Publication statusPublished - 22 Jul 2019
Event15th International Wireless Communications and Mobile Computing Conference (IWCMC 2019) - Tangier , Tangier , Morocco
Duration: 24 Jun 201928 Aug 2019

Publication series

Name2019 15th International Wireless Communications and Mobile Computing Conference, IWCMC 2019

Conference

Conference15th International Wireless Communications and Mobile Computing Conference (IWCMC 2019)
Abbreviated titleIWCMC 2019
Country/TerritoryMorocco
CityTangier
Period24/06/1928/08/19

Keywords

  • communication system security
  • physical layer security
  • cognitive radio networks
  • compressed sensing
  • Amplify and Forward
  • Amplify-and-Forward
  • Physical layer security
  • Communication system security
  • Cognitive radio networks
  • Compressed sensing

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