Ray-Launching Narrowband Analysis of UAV-to-Ground Propagation in Urban Environment

Unmanned Aerial Vehicles (UAV) enabled communications are emerging as a promising solution for the next-generation wireless systems, e.g. to extend coverage and capacity of 5G mobile radio networks. In this paper the narrowband properties of air-to-ground propagation in UAV-aided communication systems are investigated by means of fast ray launching simulations carried out in a dense urban reference environment.