Joint Cloud Collaboration Mechanism between Vehicle Clouds Based on Blockchain

With the development of the Internet of Vehicles, more and more applications require collaboration between vehicles. Vehicles from different car manufacturers have their own private clouds, and the collaboration between them is poor, resulting in inefficient collaboration between heterogeneous vehicles. A single cloud lacks collaboration between vehicles and it's an inevitable trend for developing collaboration between clouds. JointCloud is a new computing model in which collaboration services provided between clouds are used to server users in a software-defined manner based on blockchain. This paper proposes the collaboration framework of multiple vehicle clouds, introduces the blockchain to establish the coordination mechanism, and describes standardization method and service combination method of the vehicular cloud service in detail. At the end of this paper, we designed a distributed cloud service evaluation method based on blockchain to provide users with an effective cloud service evaluation solution.