Design and analysis of software defined Vehicular Cyber Physical Systems

VCPS (Vehicular Cyber Physical Systems) is a special kind of networked cyber physical system in which each vehicle is regarded as a communication unit. Vehicle's movement is restricted by road and environment in VCPS, while traditional random mobility model and waypoint mobility model cannot reflect the realistic vehicle traces. In VCPS, with the high speed of vehicles, the network topology undergoing tremendous changes all the time, which greatly undermines the stability of communication between vehicles. The diversity and complexity of traffic scenarios in VCPS have also increased the difficulty of designing an efficient and stable routing protocol. In this paper, we creatively combine SDN (Software Defined Networking) and VCPS together and propose a new VCPS communication architecture, which enable VCPS to be manageable by remote controller. SD-VCPS can flexibly change routing policies depending on different traffic scenes or traffic periods, adjusting the topology of VCPS to adapt to different network requirements. We further present a new location-based routing protocol for SD-VCPS, and corroborate the efficiency of our proposed framework by experiments using network simulator NS3.