Analysis of the Physical Layer Security in the THz Wireless Bands using Stochastic Geometric Approach

The current electromagnetic spectrum is getting strained with increased demands for operating frequencies. The congestion is pitting different services against each others and at times constrains them to co-share some spectrum bands even when it is not conducive for their optimum operations. This frequency scarcity has led researchers in the academia, the industry, the national and international regulatory bodies, and military to explore the Terahertz spectrum band for wireless communications. Physical layer security is under explored for THz bands. Thus, this paper evaluates the physical layer security in THz bands for mobile environment using a stochastic geometry approach. We evaluate the physical layer security using link outage probability, the secrecy outage probability, and the secrecy transmission channel capacity. Results show that our work, which considers more channel parameters, meet or outperforms prior publications.