Blockage Impact of Human Locomotion Gaits on Terahertz Wireless Links

Abstract

The study targets human locomotion gait for analyzing the blockage impact on terahertz (THz) wireless links. A 3D human model 6 m from the transmitter (TX) is thus employed to impose blockage in a line-of-sight (LoS) environment with vertically polarized horn antennas possessing divergent beams. Being in motion, the channels are captured by the receivers (RX) at 9 m and 12 m. Both the TX and RX antennas possess a gain of 25.45 dBi at 300 GHz. The blockage provoked by different phases in the total walking cycle (i.e., start position, swing phase, and step) is investigated with the help of ray-tracing simulations. Moreover, keeping in account the beam spot size a walking path of 1 m and 2 m are considered in the study. The results bring out into open that the blockage effect is partially greater when the human is moving in contrast to static phases.