Path Loss Prediction Applying Empirical Model in Civil Buildings with External Trees

This study investigated the method to apply the influence of trees, which are external factors, as a generalized path loss model in the simulation of ray tracing-based electromagnetic analysis inside a building by external electromagnetic waves. The ray tracing method and path loss model, which are electromagnetic wave analysis models used in this study, were described, and the frequencies ranging from 0.6 GHz to 6 GHz were used for electromagnetic wave simulation. The electromagnetic simulation for the target building was performed using Wireless Insite, a commercially available simulation tool based on ray tracing, and a path loss model was applied considering the size and location of trees affecting the experiment in the experimental environment. Finally, the accuracy of the simulation considering the influence of trees was confirmed by comparing the simulation result value applied with the path loss model and the result value obtained through actual experiments.