Path finding based on Monte Carlo techniques compared with a full ray-tracing approach in narrow and wide bands

Abstract

Efficient propagation prediction requires a tool both fast and accurate, which are two opposite qualities. Generally, such a tool is fast using crude approximation, leading to miss some propagation paths. Moreover, its accuracy is usually validated by some comparisons to measurement. Then, only the statistical behavior of such a tool is available, but not its particular one for a given scene.In this paper we propose a new optimization for finding the propagation paths, based on the Monte Carlo techniques. It allows a theoretical knowledge of the error due to our approximation, so that any engineer can really choose between faster or accurate calculations.Our approach is compared with a Full Ray Tracing tool : This allows to discuss about the validity of our model, and its gain in terms of computation time. Comparisons are produced both in narrow and wide bands.

Characterization, modeling and simulation of the MIMO propagation channel

“…5, where the input information is relative to the radio link characteristics in the studied environment, and the output provides a complete SISO or MIMO channel characterization. Note that the CIR, DoD, and DoA were extracted from the simulation and used in the characterization procedure [33][34][35].…”