摘要： 针对物联网中移动节点跨域后信任缺失的问题，参考当前信任领域和传感器网络的研究成果，提出物联网中面向跨域移动节点信誉体系的网络模型、服务模型和信誉模型，并在此基础上研究异动节点跨域后信任的迁移和建立过程。结合高斯分布的传感器网络信誉模型(GRFSN)，讨论跨域移动节点的信誉初始化、信誉更新、信誉整合和信誉共享方法。仿真结果证明，在物联网节点跨域环境下，跨域移动节点的信誉收敛速度快于传统GRFSN模型，并能保持GRFSN模型可检测恶意节点的特点。

关键词: 物联网, 移动节点, 信任迁移, 高斯分布, 信誉体系

Abstract: This paper targets on the problem which mobile nodes lose trusts after crossing domains in Internet of Things(IoT), and references current researches on networking trust and Wireless Sensor Network(WSN). It raises network model, service model and reputation model of reputation system for cross-domains nodes in IoT. It describes a series of processes which give trust transfer and initialization. It gives methods of reputation initialization, update, integration and sharing via Gaussian Reputation for Sensor Network(GRFSN) model. Simulation results show that in the context of IoT, it has higher convergence speed than the traditional GRFSN model in WSN and it also keeps the attribute of detecting malevolence nodes.

Key words: Internet of Things(IoT), mobile node, trust transfer, Gaussian distribution, reputation system

中图分类号: 

• TP393.4