Efficient wireless network simulations with detailed propagation models

Accurate simulation of wireless networks requires realistic models of the c hannel propagation medium. The widely used free space model is computationa lly efficient but ignores many attenuation components which affect wireless signal propagation. This paper describes the impact of the accuracy of the wireless channel model on the accuracy of the results and on the execution time of large-scale network models. It then introduces means to reduce the runtime execution when deploying such detailed propagation models.