Techniques are launched Ray deterministic modeling methods based on the theory of geometrical optics, which consist of uniform spatial distribution, from a transmitter on time, but a finite number of sufficient ray, which is intended modeling the propagation of wave fronts and their interaction with the environment. This thesis suggests some special techniques, analyzing the advantages and problems presented, and with special emphasis on three-dimensional propagation. It also has a particular variant known as "Tube Launched," throw in the three-dimensional structures formed by several rays. Its main advantage is that it is much easier to determine whether or not to reach a particular receiver, no need to implement complex algorithms reception essential when launching Rays. All the techniques are validated through simulations made in various environments more or less complex. Specifically, compared with measurements taken at a campaign inside the ETSIT DE Valencia. The results are highly satisfactory. Finally, it can be shown that this type of modeling is quite useful to simulate the rapid fainting experienced by the received signal with the multi-path propagation, adjusting well to the theoretical models of statistical distribution