Ray tracing: techniques, applications and prospect

Ray tracing models have been used since the beginning of the nineties for both field prediction and channel simulation in mobile radio systems. Since then, ray tracing has undergone tremendous progress in terms of algorithm efficiency and application capabilities. Some of the most recent frontiers in RT progress are described in this paper. The development of fast algorithms and their real-time use inside smart wireless systems to improve performance will probably revolutionize the panorama of deterministic propagation modelling in the future.