Full-Duplex Relay Aided Device-to-Device Communication Networks Under the Coverage of Unmanned Aerial Vehicle Base Station

Abstract

In this paper, a scenario of full-duplex (FD)-mode relay aided device-to-device (D2D) communications network is investigated, with base station (BS) equipped in an unmanned aerial vehicle (UAV). The FD-mode relay is capable of improving the capacity of the proposed heterogeneous network. Furthermore, the interference imposed on the conventional cellular users (CUs) by the D2D users, which may erode the Signal-to-Interference-plus-Noise-Ratio (SINR) of each CU, is analyzed, with a limited transmit power of the UAV BS considered. Furthermore, the expression of UAV BS's downlink transmission is derived, following which the influence of mobile UAV BS's coverage on the performance of the proposed heterogeneous network is analyzed.