UAV Air-to-Ground Channel Characterization for mmWave Systems
UAV Air-to-Ground Channel Characterization for mmWave Systems
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DOI：
10.1109/vtcfall.2017.8288376
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发表时间：
2017-07
期刊：
影响因子：
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通讯作者：
W. Khawaja;Ö. Özdemir;Ismail Güvenç
中科院分区：
文献类型：
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作者：
W. Khawaja;Ö. Özdemir;Ismail Güvenç
毫米波频段的通信对5G无线网络至关重要。本文研究了无人机通信中毫米波空对地(AG)信道的特性。特别是，我们使用Remcom Wireless InSite软件的光线跟踪模拟来研究AG毫米波在两个不同频率：28 GHz和60 GHz的行为。针对城市、郊区、农村和海上4种不同环境，分析了不同无人机高度下多径分量的接收信号强度(RSS)和均方根时延扩展(RMS-DS)。结果表明，在较高高度时，RSS沿无人机飞行轨迹的传播基本遵循双射线模型。这种双射线传播模型受城市场景中高层散射体的影响。此外，我们还详细介绍了一种基于通用串行无线电外设(USRP)的信道探测仪，该探测仪可用于毫米波(60 GHz)无人机通信的AG信道测量。
Communication at mmWave bands carries critical importance for 5G wireless networks. In this paper, we study the characterization of mmWave air-to-ground (AG) channels for unmanned aerial vehicle (UAV) communications. In particular, we use ray tracing simulations using Remcom Wireless InSite software to study the behavior of AG mmWave bands at two different frequencies: 28 GHz and 60 GHz. Received signal strength (RSS) and root mean square delay spread (RMS-DS) of multipath components (MPCs) are analyzed for different UAV heights considering four different environments: urban, suburban, rural, and over sea. It is observed that the RSS mostly follows the two ray propagation model along the UAV flight path for higher altitudes. This two ray propagation model is affected by the presence of high rise scatterers in urban scenario. Moreover, we present details of a universal serial radio peripheral (USRP) based channel sounder that can be used for AG channel measurements for mmWave (60 GHz) UAV communications.