The effective integration of unmanned aerial vehicles (UAVs) in future wireless communication systems depends on the conscious use of their limited energy, which constrains their flight time. Reconfigurable intelligent surfaces (RISs) can be used in combination with UAVs with the aim to improve the communication performance without increasing complexity at the UAV side. In this paper, we propose a synergetic UAV RIS communication system, utilizing a UAV with a highly directional antenna aiming to the RIS. The proposed scenario can be applied in all air-to-ground RIS-assisted networks and numerical results illustrate that it is superior from the cases where the UAV utilizes either an omnidirectional antenna or a highly directional antenna aiming towards the ground node.
翻译:无人驾驶飞行器(无人驾驶飞行器)有效融入未来的无线通信系统,取决于对限制飞行时间的有限能源的自觉使用,可与无人驾驶飞行器一起使用可配置智能表面(RIS),目的是在无人驾驶飞行器方面提高通信性能,而不会增加复杂性。在本文中,我们提议建立一个协同型无人驾驶飞行器(UAV)通信系统,使用带有高度定向天线的无人驾驶飞行器(UAV),以RIS为目标。拟议的设想方案可适用于所有空对地的IRIS辅助网络,而数字结果显示,无人驾驶飞行器利用万向天线或高度定向天线瞄准地面节点的情况比前者优越。