A computer graphics package for indoor radio channel simulation using a 2D ray tracing algorithm

Abstract

A graphical user interface program that uses a ray tracing algorithm to predict the radio propagation in the indoor radio channel from the layout of the floor plan is presented. The program allows the user to interactively specify the location of the walls in the floor plan, the type of material in the construction, and the location of the radio transmitter and receiver. The ray tracing algorithm determines the magnitude, phase, time of arrival, and direction of every signal path between the specified radio transmitter and receiver when an RF pulse is transmitted. The accuracy of the model is examined by comparing the simulation results with results of empirical measurements made in a complex laboratory environment.<>