Human Blockage Model For Indoor Terahertz Band Communication

In this paper, we focus on an indoor application of THz communication and the effect of human blockage on performance of the system. We investigate the impact of using two transmitters to overcome the human blockage and provide direct line of sight (LoS) between transmitters and the receiver to improve coverage, reliability and capacity of the transmission. We derive an analytical model to estimate the probability of a receiver, carried on person, having LoS with deployed antennas inside a room crowded with people. Based on this probability we derive an expression for the average number of people with reception, the average coverage, in a given setup. Our findings support the following conjecture: The gain in average coverage due to deployment of many antennas compared to a single one is bounded from above by the number of antennas deployed.