Ray Tracing Simulation in Wide Urban Areas by Combining Buildings

This paper studies the ray tracing simulation in a km-order urban area model. It is often difficult to calculate the massive model because of the calculation cost. In this paper, we propose a simple modeling method that combines several or many buildings into one block to decrease the elements of the analysis model. The height of each block is determined from area cumulative probability. The best result of comparison between measurements and simulations shows RMSE of 6.73dB.