Applied for the first time to mobile radio propagation modeling at the beginning of the
nineties, ray tracing is now living a second youth. It is probably the best model to assist in the …

The growth of radio communication services has stimulated interest in ray propagation
modeling, particularly in urban areas. The main drawback of these methods is lengthy …

Ray-tracing and uniform theory of diffraction techniques are already widely applied to site-
specific radio propagation modeling for wireless applications. Software tools using such …

Three-dimensional (3-D) ray tracing has advanced to such a degree that it can provide
channel parameters like delay spread, Doppler spread, angular spread, and distribution …

Ray-tracing techniques have been widely used as simulation tools for the design and
planning of wireless systems, both in urban microcells and in indoor picocells, due to the site …

The application of several ray-tracing techniques, in combination with GTD/UTD
(geometrical theory of diffraction/uniform theory of diffraction), for an efficient analysis of …

This paper reviews the basic concepts of rays, ray tracing algorithms, and radio propagation
modeling using ray tracing methods. We focus on the fundamental concepts and the …

A novel and efficient deterministic approach to model radiowave propagation channels in
complex indoor environments, improving prediction accuracy, is proposed. This technique …

For indoor environments ray tracing models are frequently used to predict the impulse
response of the radio channel. This contribution discusses ray tracing methods known from …

A multidimensional analysis of multipath propagation in urban micro-and macro-cellular
environment has been carried out. Multidimensional measurement data, including path-loss …