Multiple Simulator Interlinking Environment for Inter Vehicle Communication

In this paper we show how multiple specialized simulators can be interlinked at runtime to perform realistic simulations for vehicular ad-hoc networks. We combine a network simulator (ns-2), a traffic simulator (VISSIM), and an application level simulator (Matlab/Simulink) to enable the analysis of applications where pre-calculated traces of vehicular movement patterns or predefined communication traces are insufficient. One prominent example for this kind of application is the transmission of emergency warnings. We present the basic idea of the architecture, show how we have implemented it, and discuss performance issues. Finally, we demonstrate the application of the environment to the analysis of a simple emergency warning application