Decentralized Incentive Mechanism for Cooperative Content Dissemination in Vehicular Networks

摘要: Cooperative content dissemination allows vehicles to directly retrieve from each other by vehicle-tovehicle (V2V) communications. It can release the downlink traffic pressure caused repetitive of popular downloads. A critical but open issue is how motivate participate in dissemination. Most existing incentive mechanisms are proposed under a centralized architecture that suffers single point attack and trustless third-platform. In this paper, we propose decentralized mechanism for cooperative vehicular networks. By introducing Directed Acyclic Graph (DAG) based blockchain technology, proposed, which improve efficiency reliability removing Next, using contract theory, divided into different types according their route feature, series contracts designed provide suitable incentives, as well maximize generators’ profit. Simulation results demonstrate effectiveness our solution.