Operation Altitude Optimization of Solar-Powered Rotary-Wing UAVs for FSO Backhauling

2023 International Balkan Conference on Communications and Networking (BalkanCom) Pub Date : 2023-06-05 DOI:10.1109/BalkanCom58402.2023.10167894

Khadijeh Ali Mahmoodi, M. Elamassie, M. Uysal

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Abstract

Free space optical communication (FSO) has emerged as an alternative backhauling technology. It provides a line-of-sight (LOS) link with a capacity comparable to fiber optics and much higher than those that can be supported by radio counterparts. Rotary-wing unmanned aerial vehicles (UAVs) equipped with FSO terminals can be positioned as a complementary aerial solution to the terrestrial backhaul links in dense areas with high-peak traffic demands. In this paper, we consider a solar-powered rotary-wing UAV equipped with an FSO terminal that provides backhaul link to a ground base station in an urban area. We first quantity the energy consumption and energy harvesting of a rotary-wing solar-powered UAV. Then, we formulate an optimization problem to determine the optimal operation altitude with the goal of maximizing the net energy of UAV while satisfying the LOS requirements critical for the FSO link. Our results show that the selection of operation altitude is highly dependent on the weight of the UAV as well as the size and efficiency of the solar panel.

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光能旋翼无人机FSO回程作业高度优化

自由空间光通信(FSO)已成为一种可替代的回程技术。它提供视距(LOS)链路，其容量可与光纤相媲美，远高于无线电对应物所支持的容量。配备FSO终端的旋翼无人机(uav)可以定位为具有高峰流量需求的密集地区地面回程链路的补充空中解决方案。在本文中，我们考虑了一种太阳能旋翼无人机，它配备了一个FSO终端，为城市地区的地面基站提供回程链路。首先对旋翼太阳能无人机的能量消耗和能量收集进行了量化。然后，以无人机的净能量最大化为目标，在满足FSO链路的关键LOS要求的情况下，制定优化问题，确定最佳作战高度。研究结果表明，作业高度的选择高度取决于无人机的重量以及太阳能电池板的尺寸和效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2023 International Balkan Conference on Communications and Networking (BalkanCom)

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