论文标题
蜂窝网络连通性的经验低空空间空间通道表征
Empirical Low-Altitude Air-to-Ground Spatial Channel Characterization for Cellular Networks Connectivity
论文作者
论文摘要
蜂窝连接的无人机（UAV）最近引起了对学术界和工业的兴趣激增。了解空对地面（A2G）传播通道对于实现无人机的可靠和/或高通量通信至关重要，并保护地面用户设备（UES）。在这项贡献中，引入了最近针对A2G渠道进行的测量活动。在三种不同的乡村，城市和工业场景中，使用了一个具有16个天线元件的均匀圆形阵列（UCA），以收集两个不同的长期演化（LTE）网络的下行信号，在0-40m的高度为0-40m。从接收到的数据中提取了通道脉冲响应（CIR），并根据高分辨率参数估计（HRPE）原理估算了单个通道中多径成分的空间/角参数。基于HRPE结果，进一步鉴定了多径成分的簇。最后，在三种情况下，在不同高度的复合材料和聚类水平上研究了全面的空间通道特征。
Cellular-connected unmanned aerial vehicles (UAVs) have recently attracted a surge of interest in both academia and industry. Understanding the air-to-ground (A2G) propagation channels is essential to enable reliable and/or high-throughput communications for UAVs and protect the ground user equipments (UEs). In this contribution, a recently conducted measurement campaign for the A2G channels is introduced. A uniform circular array (UCA) with 16 antenna elements was employed to collect the downlink signals of two different Long Term Evolution (LTE) networks, at the heights of 0-40m in three different, namely rural, urban and industrial scenarios. The channel impulse responses (CIRs) have been extracted from the received data, and the spatial/angular parameters of the multipath components in individual channels were estimated according to a high-resolution-parameter estimation (HRPE) principle. Based on the HRPE results, clusters of multipath components were further identified. Finally, comprehensive spatial channel characteristics were investigated in the composite and cluster levels at different heights in the three scenarios.
