摘要： 针对分布式无线传感器网络在实现安全功能时存在着选择安全可靠节点问题，提出一种基于簇的分组多层次信任计算模型，对簇内节点、簇头和基站分层进行信任值计算，找出恶意节点并摒弃，保证完成各项任务的节点是可靠、可信任的。实验结果表明，该方法能提高网络运行的稳定性，优化资源利用，及时有效地识别恶意节点，保证网络的安全。

关键词: 分布式无线传感器网络, 安全, 分组多层次信任模型, 稳定性

Abstract: Aiming at the problem of selecting safe and reliable node always affects the realization in distributed Wireless Sensor Networks (WSNs), this paper proposes a trustworthy computing model of cluster-based grouping and hierarchical, in which the cluster nodes, cluster heads and base stations calculate their trust values hierarchically. In this way, the malicious nodes can be identified and discarded timely that ensures the reliability of nodes which perform various tasks in networks. Simulation results show that using the model can enhance the stability of networks and keep minimum resource utilization, identify malicious nodes effectively to ensure network security.

Key words: distributed Wireless Sensor Networks(WSNs), security, grouping and hierarchical trust model, stability

中图分类号: 

• TP393