Pathloss Measurements and Modeling for UAVs Connected to Cellular Networks

Rafhael Medeiros de Amorim, Preben Elgaard Mogensen, Troels Bundgaard Sørensen, István Kovács, Jeroen Wigard

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

22 Citations (Scopus)
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Abstract

This paper assess field measurements, as part of the investigation of the suitability of cellular networks for providing connectivity to UAVs (unmanned aerial vehicles). Evaluation is done by means of field measurements obtained in a rural environment in Denmark with an airbone UAV. The measurements were conducted in an operating LTE network (850 MHz), using a commercial cell phone, placed inside the frame of the UAV. Trials were conducted for UAV flying at 5 different heights measured above ground level (20, 40, 60, 80 and 100m) and a pathloss regression line was obtained from results. Then, downlink (DL) SINR levels obtained during flight measurements are also presented. An important result obtained from the measurents reveal that there is a height-related DL SINR degradation. Three main sources of uncertainty on the pathloss model that could be responsible for the SINR degradation are also presented and discussed in this paper: expanded radio horizon at higher levels, line-of-sight (LOS) clearing and decreased obstruction of the first Fresnel zone. The importance of a better quantification of this uncertainty factors are stressed out as future work plans are described.
Original languageEnglish
Title of host publication2017 IEEE 85th Vehicular Technology Conference (VTC Spring)
Number of pages6
PublisherIEEE
Publication date2017
ISBN (Electronic)978-1-5090-5932-4
DOIs
Publication statusPublished - 2017
EventVTC Spring 2017 -
Duration: 4 Jun 20177 Jun 2017

Conference

ConferenceVTC Spring 2017
Period04/06/201707/06/2017
SeriesI E E E V T S Vehicular Technology Conference. Proceedings
Volume2017
ISSN1550-2252

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