Network Virtualization Optimization in Software Defined Vehicular Ad-Hoc Networks

Vehicular ad-hoc networks (VANETs) will play an important role in next generation transportation systems, which is expected to be, cost-effective, and adaptable, making it ideal for providing network connection service to drivers and passengers. As a new paradigm of cloud computing, vehicular cloud computing (VCC) will improve scalability and flexibility of VANET services. However, traditional VANETs are hard to support VCC in the absence of network virtualization. In this paper, we propose a combined network virtualization scheme by introducing software defined networking (SDN) to VANETs. We combine two solutions of network isolation to enable network virtualization in software defined VANETs. To optimize the quality of service (QoS) of each virtual VANET, we also model the solution assignment as a non-cooperative game and find the Pareto efficient solution for fair assignment. From the experimental results, the new network virtualization scheme provides a better QoS than original solutions.