Affiliations: Cadi Ayyad University, Guéliz, Marrakech, Morocco | Johannes Kepler University, Linz, Austria | Old Dominion University, Norfolk, VA, USA
Abstract: The past decade has witnessed the emergence of Vehicular Ad-hoc
Networks (VANET), specializing from the well-known Mobile Ad Hoc Networks
(MANET) to Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I)
wireless communications. While the original motivation for Vehicular Networks
was to promote traffic safety, recently it has become increasingly obvious that
Vehicular Networks open new vistas for Internet access, providing weather or
road condition, parking availability, distributed gaming, and advertisement. In
previous papers [27,28], we introduced Cooperation as a Service (CaaS); a
new service-oriented solution which enables improved and new services for the
road users and an optimized use of the road network through vehicle's
cooperation and vehicle-to-vehicle communications. The current paper is an
extension of the first ones; it describes an improved version of CaaS and
provides its full implementation details and simulation results. CaaS
structures the network into clusters, and uses Content Based Routing (CBR) for
intra-cluster communications and DTN (Delay – and disruption-Tolerant Network)
routing for inter-cluster communications. To show the feasibility of our
approach, we implemented and tested CaaS using Opnet modeler software package.
Simulation results prove the correctness of our protocol and indicate that CaaS
achieves higher performance as compared to an Epidemic approach.
