Convergence Analysis in Deterministic 3D Ray Launching Radio Channel Estimation in Complex Environments

In this paper, a convergence analysis to obtain the optimal calculation parameters in an in-house 3D ray launching algorithm to model the radio wave propagation channel in complex indoor environments is presented. Results show that these parameters lead to accurate estimations with reduced computational time. In addition, simulation results of an indoor complex scenario in terms of received power and power delay profile are presented, showing significant influence of multipath propagation in an indoor radio channel. The adequate election of simulation parameters given by convergence conditions, can aid in optimizing required computational time.