Clutter Loss of Low-Altitude UAV Channel in Suburban Scenario At 5.8 GHz

Abstract

Low-altitude communication has attracted lots of attention in recent years, and it is very important to obtain an accurate clutter loss model for evaluating and designing such a communication system. For this purpose, we have conducted a channel measurement campaign at 5.8 GHz for suburabn low-altitude scenario. Based on the measured pathloss, we extract and analyze the clutter loss for different link distances and elevation angles between the transceiver. The measured clutter loss is validated by the ITU clutter loss model with respect to the link distance. Moreover, we compare the measured clutter loss with the the ITU clutter loss model with respect to the elevation angle, and find the obvious difference between them. Therefore, in this letter, we propose a modified clutter loss model and a pathloss model with respect to the elevation angle factor for the suburban low-altitude scenario.