Self-energized Full-Duplex UAV-assisted Cooperative Communication Systems

Abstract

In this paper, we propose a unified energy harvesting scheme using wireless power transfer (WPT), simultaneous wireless information and power transfer (SWIPT) and loop-back self-interference energy harvesting (SI-EH) enabled full-duplex (FD) cooperative communication system for unmanned aerial vehicles (UAVs). In contrast to traditional UAV assisted cooperative networks, here the UAV relies on alternative energy sources rather than pre-charged battery. Furthermore, the optimal time allocation for WPT and SWIPT scheme is obtained theoretically. Considering a delay-limited transmission mode, we derive an approximate close-form expression for the outage probability and the average throughput of the proposed system.