Research on UAV-to-Ground Communication Channel Based on NYUSIM

Abstract

In B5G era, millimeter wave (mmWave) has received wide attention because of its abundant spectrum resources. Low-altitude unmanned aerial vehicle (UAV) can effectively compensate the shortcomings of small coverage and weak penetration of mmWave by virtue of its low cost and mobility characteristics, so the combination of UAV and mmWave communication are promising for next generation mobile system. To reveal the characterization of Air-to-Ground (A2G) channel for UAV communications, this paper simulates different distances, different altitudes and different weather conditions on Sub-6GHz and millimeter-wave bands through NYUSIM platform. The data has been fitted with a logarithmic distance path loss model and the K-factors has been extracted for comparative analysis. In addition, the power delay profile (PDP) and root mean square delay spread (RMS-DS) are calculated to analyze the time dispersion characteristics. This paper presents a comprehensive analysis of the propagation characteristics of mmWave A2G channels at different scales, which provides a reference for the design of UAV communication systems and the planning of low-altitude cellular networks.