A novel geometrical height gain model for line-of-sight urban micro cells below 6 GHz

This paper presents a novel height gain model applicable to line-of-sight urban micro cell scenarios and frequencies below 6 GHz. The model is knife-edge diffraction-based, and it is founded on simple geometrical and physical relationships. Typical system level simulator scenario parameters are used as inputs to the model, where the only variable is outdoor-to-indoor penetration loss as it can vary depending on the external composition of the target building. The model is validated against two independently-obtained sets of measurements taken at different locations in China and Denmark. The model presents an average root-mean-square error accuracy of 6a dB, about 1a dB better than current existing models.