Interference and Coverage Analysis for Indoor THz Communications with Beamforming Antennas

A general framework to comprehensively investigate the interference and the coverage performance is proposed in this paper for indoor Terahertz (THz) communication with beamforming antenna. The interference of direct and scattering rays from users and Access Points (APs) are separately analyzed by using distance-dependent probability functions. Moreover, the users and APs are all equipped with beamforming antennas. Then, the coverage probabilities are derived as a function of the AP density, user density, transmission distance, beamforming gain and SINR (Signal to Interference plus Noise Ratio) threshold. The numerical results show the effects of these parameters on the interference and coverage probability, which will guide the design and placement of users and APs in future indoor THz networks to mitigate the interference and achieve a better throughput.