Joint ray launching method for indoor to outdoor propagation prediction based on Ray Aggregation

A joint indoor to outdoor ray launching algorithm is proposed in this paper. Different resolutions are considered for indoor and outdoor simulations. Instead of using conventional sampling technique to extract rays from a finer resolution, a novel method, named Ray Aggregation, is applied to minimise the loss of accuracy while benefiting from the computational cost of a coarse resolution. Furthermore, this model will be demonstrated with two simulations based on the general 2.4 GHz 802.11n wireless local area network. Finally, the corresponding measurements will be presented to verify the accuracy of the proposed model.