Affection of THz indoor communication links by antenna misalignment

Antenna misalignment can lead to a severe performance deterioration of wireless THz communication links. In this paper, we propose to model the misalignment as a random process. Based on the misalignment model, Monte Carlo simulations are conducted in order to assess the impact of misalignment on THz communication channels in an office scenario. Ray tracing accounts for correct propagation conditions. Results are demonstrated in terms of the effective antenna gains and the effective resulting path losses. Different antenna directivities are considered for the transmitter and receiver. The optimum antenna configuration is determined. Furthermore, a misalignment-dependent path loss model is derived.