REM Extrapolation Construction Using Radio Wave Propagation Loss Models Matched with Terrain Conditions

The Radio Environment Map (REM) is an effective tool for understanding the electromagnetic environment and the spectrum usage. This paper designs a REM extrapolation construction method using radio wave propagation loss models matched with terrain conditions. First, this paper introduced two typical propagation loss models, that is the free space model and the diffraction model. Then, this paper designed a method of radio wave propagation loss model matched with terrain conditions, which can select the model according to the specific terrain conditions. Finally, extrapolation was used to generate REM in a certain area. This paper presented the generated REM through simulation experiments, and verified that the method used in this paper can generate REM that is closer to the real terrain.