A proposal of SDN based VANET architecture for urban intersection management systems

Abstract

One of the main challenges for developed cities is vehicle traffic management. There are many studies about urban intersection managements both in literature and in practice. In recent years, VANET (Vehicular ad hoc networks) has been preferred in these studies, which enables vehicles to easily communicate with each other or with RSUs. On the other hand, there are many studies on a new network paradigm called SDN (software defined networks) that solves problems such as performance, programmability, scalability etc. difficulties in today's networks. Depending this, in this study, we will present an architectural proposal about how to use SDN and VANET paradigms together in intersection management systems in order to use both existing and future intersection management system modules more adaptively and in desired service quality. In addition, to show the functionality of the proposed architecture for signaling system, we propose an ant colony algorithm based SDN controller's modules. The results obtained from ant colony algorithm based SDN modules were compared with other signaling techniques in literature on a isolated intersection. It shows that the proposed algorithm and architecture provide an improvement about % 15-22 according to existing systems and %7-12 according to computational techniques in average delay and queueing.