NDLI: Low-altitude UAV air-ground propagation channel measurement and analysis in a suburban environment at 3.9 GHz

Content Provider	IET Digital Library
Author	Cui, Zhuangzhuang Briso, César Guan, Ke Matolak, David W. Ramírez, César Calvo Ai, Bo Zhong, Zhangdui
Abstract	Unmanned aerial vehicles (UAVs) have been applied to various promising applications because of their features of high-mobility, portability, rapid deployment, and modest power consumption. Small UAVs fly at low altitudes and typically short distances from the ground controller. It is of interest and value to model the propagation channel between low-altitude UAVs and ground stations. This article presents results of channel measurements at 3.9 GHz carried out in a suburban environment with a small-size UAV flying at low altitudes, up to 40 m. The authors also present comparative results from ray-tracing simulations. Height-dependent models for path loss, root mean square (RMS) delay spread, and the number of multipath components are provided. The results illustrate that although multipath effects exist at low altitudes in this environment, the two-ray path loss model works reasonably well in describing the channel behaviour. Initial ray tracing simulations show reasonable agreement with measurements. In addition, RMS delay spread results indicate that distant scatterers have an appreciable effect on the UAV air-ground (AG) propagation channels, which can be different from some terrestrial channels. Authors’ results should be of use in the modelling of low-altitude AG propagation channels and in the performance analysis of UAV-enabled AG communication systems.
Starting Page	1503
Ending Page	1508
Page Count	6
ISSN	17518725
Volume Number	13
e-ISSN	17518733
Issue Number	Issue 9, Jul (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/13/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2019.0067
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2019-04-05
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Aerospace Control Aircraft Communication Autonomous Aerial Vehicle Channel Behaviour Channel Measurement Frequency 3.9 GHz Ground Controller Ground Stations Initial Ray Tracing Simulations Low Altitudes Low-altitude UAV Air-ground Low-altitude UAVs Mobile Radio System Mobile Robots Multipath Channel Propagation Channel Radio Link And Equipment Radio Wave Propagation Ray Tracing Remotely Operated Vehicle Size 40.0 M Small-size UAV Suburban Environment Terrestrial Channel Two-ray Path Loss Model UAV-enabled AG Communication System Wireless Channel
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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