论文标题
由定向天线启用的全双工多动力系统的地面实验
Ground Experiment of Full-Duplex Multi-UAV System Enabled by Directional Antennas
论文作者
论文摘要
桥接多个无人机和地面站的高性能多UAV通信系统是实现各种基于无人机的系统的关键推动者之一。为了解决诸如共同通道干扰引起的低光谱效率之类的问题，我们提出了一个具有低硬件复杂性的频谱有效的全双工多UA V通信系统。在本文中，进行了实地实验，以确认拟议系统的关键特征的可行性和有效性，即通过方向天线和无人机位置控制，无人机之间的共同通道干扰取消，而不是能量消耗能量的专用自我干扰者在传统的全大多重系统中对无人机上的专用自我干扰者。测量了一对两个无人机之间的干扰链接的通道功率，可以测量重复使用同一信道的两种无人机，并且可实现的通道容量也通过软件定义的无线电设备实现的原型系统来衡量。还比较了不同天线和不同天线高度的结果。实验结果与设计非常吻合，并确认所提出系统的可行性和有效性。这项地面实验是一项正在进行的工作，以为将来的空气中基于多动物的实验提供初步结果。
A high performance multi-UAV communication system, which bridges multiple UAVs and ground station, is one of the key enablers to realize a variety of UAV-based systems. To address the issues such as the low spectrum efficiency caused by the co-channel interference, we have proposed a spectrum-efficient full-duplex multi-UA V communication system with low hardware complexity. In this paper, on-ground experiments are conducted to confirm the feasibility and effectiveness of the key feature of the proposed system, i.e., co-channel interference cancellation among UAVs by directional antennas and UAV position control, instead of energy-consuming dedicated self-interference cancellers on UAVs in traditional full-duplex systems. Channel power of interference link between a pair of two UAVs reusing the same channel is measured, and the achievable channel capacity is also measured by a prototype system implemented by software-defined radio devices. The results of different antennas and different antenna heights are also compared. The experimental results agree well with the designs and confirm the feasibility and effectiveness of the proposed system. This ground experiment is a work in progress to provide preliminary results for the multi-UAV-based experiments in the air in the future.
