Trusted Reputation System for Heterogeneous Network Resource Sharing Based on Blockchain in IoT

With evolution of 5G networks and IoT technology, enormous amount of network resource demands are raising. How to effectively promote the interconnection and comprehensive sharing of resources which belongs to different resource providers to meet the demands of diversified services is a critical issue. Considering the superior advantages of blockchain technology in distributed systems, we propose a blockchain-based decentralized solution for network resource sharing and define a trusted reputation system in this paper. A two-layer distributed network resource sharing architecture are proposed. Based on this architecture, a reputation system are designed. Based on the behavior of network resource provider during, the sharing reputation are quantified to provide a reference for network resource requester to choose suitable resources. Then a reputation-based shard parallel consensus algorithm are developed. Finally, the simulation experiments are designed to analyze the performance of reputation system. The results show that with the support of the reputation system, the resource sharing system will develop healthily.