Speedup of telecommunication network simulations with self-similar input traffic

Simulations represent a very powerful means for validating network designs that help telecommunication operators to predict network performance. In this context, two important issues have to be carefully considered: a speedup technique has to be used to reduce the long simulation times; the traffic models should be able to reproduce the burstiness observed in real traces. In this paper, we propose a new solution to these problems based on the application of the importance sampling (IS) theory to the power on-power off model, which can accurately reproduce the self-similar nature of the real traffic. The accuracy and efficiency of the technique have been validated by extensive experiments.