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

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 suburban 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, inspired by the measured clutter loss and the unavailability of the low-frequency band in the ITU model with respect to the elevation angle, and thus, we propose a new clutter loss model based on the ITU model and a pathloss model with respect to the elevation angle factor for the C-band frequencies around 5.8 GHz in the suburban low-altitude scenario.