Extending UAV-enabled wireless power transfer to multiple/multi-antenna UAV energy transmitters

Develop models and algorithms for UAV-enabled wireless power transfer with multiple unmanned aerial vehicle energy transmitters and/or multi-antenna UAV energy transmitters, including trajectory, hovering, and beamforming/scheduling designs that generalize single-antenna, single-UAV results to the broader setup.

Background

The paper discusses UAV-mounted energy transmitters that exploit controllable mobility and line-of-sight links to improve wireless power transfer efficiency. For a single-antenna UAV-ET, hovering at a fixed location maximizes total harvested energy, and a hover-and-fly trajectory optimizes fairness across energy receivers.

These single-UAV, single-antenna results do not address systems with multiple UAV energy transmitters or multi-antenna configurations, which are practically important for scalable and efficient energy delivery. The authors explicitly note that extending to these broader setups remains unaddressed.

References

However, how to extend the work [956] to the more general setup with multiple and/or multi-antenna UAV-ETs is still not addressed yet.

— Accessing From The Sky: A Tutorial on UAV Communications for 5G and Beyond  (1903.05289 - Zeng et al., 2019) in Section VI-D (Wireless Power Transfer)

Yet another critical research gap persists in vehicular quantum communications: the joint optimization of quantum resource (qubit) allocation across multiple aerial repeater channels while simultaneously determining optimal UAV positioning and transmit powers under power harvesting constraints remains unexplored.

— Net-Zero Power UAVs: Facilitating Quantum HRLLC in Multi-Hop UAV Repeaters  (2610.23540 - Ranjha et al., 16 Oct 2026) in Section I, Introduction, page 1