Coverage Analysis of a THz Aerial Base Station Wireless Network in a Finite Area

Terahertz (THz) transmission technologies show great promise in enabling ultra-broadband short-range in the next-generation communications. The incorporation of THz transmission with Aerial Base Stations (ABS) networks offers promising advantages, particularly in establishing favorable ultra-broadband line-of-sight links. In this paper, we provide a performance analysis for a finite THz ABS network serving a given region. We model the spatial distribution of the ABSs as a binomial point process within an overlapped finite circular area. To derive the coverage probability, we consider a probabilistic model that encompasses both line-of-sight and non-line-of-sight propagation scenarios, and a user association policy based on the strongest average received power. The association probabilities and Laplace transform of the interference are also derived. The derived coverage probability is validated through Monte Carlo simulation. We further investigate the impacts of the ABS's height and the radius of the area on the coverage performance.