Angle of Arrival and Angle of Departure Estimation Using Compressed Sensing for Terahertz Communications

In this paper, an approach to optimize a device discovery process using highly directive antennas for Terahertz communications is introduced. An algorithm using compressed sensing and some first results based on simulation data are presented. The simulation environment and scenarios as well as the compressed sensing theory are explained and the concept is evaluated considering different propagation scenarios as well as different frequencies and angular resolutions. Finally, the results show that the number of directions of the considered device discovery process can be reduced by up to 61 % on average.