论文标题
与不同的多个访问协议的无人机雷达和通信网络共存的分析
Analysis of UAV Radar and Communication Network Coexistence with Different Multiple Access Protocols
论文作者
论文摘要
未来，无人驾驶汽车（UAV）预计将在将来广泛使用，以作为连接到蜂窝无线网络连接的用户设备（UES），或作为现有无线网络的基础架构扩展以服务于其他UES。下一代无线网络将考虑将无人机用于联合通信和雷达和/或作为各种传感应用的专用雷达。越来越多的无人机数量自然会导致更多的通信和/或雷达链接，这些链接可能会导致对附近网络的干扰，这进一步加剧了视线信号传播的可能性更高，甚至来自无人机甚至接收器。有了所有这些，研究无人机安装的基站（BSS）和雷达收发器的网络共存至关重要。在本文中，使用随机几何形状，我们得出了封闭形式的表达式，以表征与频谱覆盖多重访问（SOMA）和时间分段多重访问（TDMA）的无人机雷达和通信网络的性能。我们评估成功的范围概率（SRP）和传输能力（TC），并比较TDMA和SOMA的性能。我们的结果表明，当活动无UAV-radar的节点密度大于无人机通用的节点密度时，SOMA在SRP和TC上的表现都可以胜过TDMA。
Unmanned aerial vehicles (UAVs) are expected to be used extensively in the future for various applications, either as user equipment (UEs) connected to a cellular wireless network, or as an infrastructure extension of an existing wireless network to serve other UEs. Next generation wireless networks will consider the use of UAVs for joint communication and radar and/or as dedicated radars for various sensing applications. Increasing number of UAVs will naturally result in larger number of communication and/or radar links that may cause interference to nearby networks, exacerbated further by the higher likelihood of line-of-sight signal propagation from UAVs even to distant receivers. With all these, it is critical to study network coexistence of UAV-mounted base stations (BSs) and radar transceivers. In this paper, using stochastic geometry, we derive closed-form expressions to characterize the performance of coexisting UAV radar and communication networks for spectrum overlay multiple access (SOMA) and time-division multiple access (TDMA). We evaluate successful ranging probability (SRP) and the transmission capacity (TC) and compare the performance of TDMA and SOMA. Our results show that SOMA can outperform TDMA on both SRP and TC when the node density of active UAV-radars is larger than the node density of UAV-comms.
