Integrated Communication and Control for UAV Assisted Wireless Power Transfer

Unmanned aerial vehicle (UAV) assisted wireless power transfer (WPT) enables the network to provide flexible and controllable energy supplement towards low-powered devices, which is considered as a promising technology in the future Internet of Things (IoT) networks. In this paper, the integrated communication and control (ICAC) for UAV assisted WPT is studied, aiming for mitigating the performance degradation caused by the WPT beam misalignment between the UAV and the low-power device. The optimal blocklength of the control signal is then obtained, in order to maximize the lower bound of the average energy harvesting power of the device by satisfying the control reliability constraint. Simulation results evaluate the performance of the ICAC system, which demonstrates that the WPT performance is a decrease-and-increase-then-decrease function with respect to the blocklength of the control signal. The performance of the ICAC system can be improved by adjusting the blocklength of the control signal.