A MODEL-BASED COMPARISON OF TIME-DIVISION MULTIPLEX ACCESS AND NETWORK BASED COMMUNICATION SYSTEMS FOR SAFETY-RELEVANT AUTOMOTIVE ELECTRONIC ARCHITECTURES

As a possible alternative to TDMA-based automotive communication systems, a network based approach was presented in (Nenninger et al. 2006). Because of the complex topology dependent properties of the approach, an analytical investigation is only feasible for a limited set of parameters and topologies. Therefore a model of the network based approach, as well as a FlexRay model was implemented. Using these models, the two approaches are compared under different aspects. It is shown that the network based approach gives good results even for asymmetrical topologies and high network load.