In January 2006 I became a member of the research group Decentralized Systems and Network Services at the Telematics Insititute at the Karlsruhe Insitute of Technology (KIT). From 2006 to 2008 I joined the graduate school Self-organizing Sensor-Actuator-Systems at the University of Karlsruhe (TH). In February 2010 I passed my PhD defense exam on the topic "Interference in Vehicle-to-Vehicle Communication Networks - Analysis, Modeling, Simulation and Assessment". Since mid 2010 I am also team leader for the research field of Car-2-X Communications.
In my work I analyze, model and simulate and assess IEEE 802.11p based vehicular communication networks under challenging environmental conditions. Focus is put on the communication paradigm of periodic distribution of broadcast status messages by all nodes with the intent that all nodes in the geographical surrounding receive these messages and thus are aware of the position of vehicles around them. Such type of communication is an essential basis for all cooperative safety systems.
In order to evaluate periodic local broadcasts the dependencies between available data rate, vehicle density, and the area to which information should be provided with a required reliability is formalized by the definition of the metric “local broadcasts capacity”. The maximum capacity as well as the worst case capacity are derived analytically and thus provide an orientation of the possible range of operation in that real systems are expected to perform. The derivation of the realistic performance of a system with respect to local broadcasts capacity is yet of a level of complexity that can not be covered easily by analytics and is in consequence derived by the use of detailed simulations.