A DTN routing on OLSR for VANET: A preliminary road experiment

We conducted road experiments to evaluate our recently proposed DTN routing for Mobile Ad Hoc Network running OLSR Our DTN routing protocol, DTS-OLSR relies on a DHT-driven framework called Structured Mesh Overlay Network (SMON) which runs in OLSR MANET. SMON was designed to reduce the number of broadcast messages when forming overlay over participating OLSR nodes. In these road experiments, our proposed DTS-OLSR is applied on vehicular MANET or VANET. In our real road tests, we first study the characteristics of the vehicle-to-vehicle and vehicle-to-infrastructure Wi-Fi ad hoc channels. Then we observe the ability of DTS-OLSR to make contact and transfer bulk files either between a vehicle and a roadside relay, or between two vehicles passing in opposite direction. There are three interested scenarios. The first scenario is on a two-way two-lane university street where the practical vehicle speed in each direction is approximately 20 km/h. The second scenario is a two-way four-lane urban street where the practical vehicle speeds in each direction are approximately 40-60 km/h. The third scenario is a section of multi-lane highway where the practical vehicle speeds in each direction are approximately 60-80 km/h. Our contributions include i) DTS-OLSR´s proof of concept testbed based on DTN reference implementation 2 (DTN-RI2), and ii) our empirical measurement results from real world VANET experiments.