基于信任评估模型的IWSN安全路由研究

Research on IWSN Secure Routing Based on Trust Evaluation Model

针对工业无线传感器网络对网络传输安全的要求,研究了一种基于改进的信任评估模型的节点可信安全路由协议。采用惩罚因子和直接信任值交互次数更新,防止恶意节点的暴力攻击以及伪装攻击;采用基于推荐节点的推荐信任可靠度,阻止恶意节点对其他节点的群体诽谤。仿真结果显示,与IASR中典型的信任评估模型相比,采用的模型在恶意行为防御性能上优于IASR信任评估模型;与实时可靠的THTR路由相比,采用的路由方法在丢包率、平均端到端时延、吞吐量以及路由开销上有着显著改善。

Aiming at the security requirements of network transmission in industrial wireless sensor networks,a node trusted security routing protocol based on improved trust evaluation model is studied. The number of interactions between the penalty factor and the direct trust value is updated to prevent violent attacks and camouflage attacks by malicious nodes. The recommendation trust reliability based on the recommendation node is adopted to prevent malicious nodes from vilifying other nodes. The simulation results show that compared with the typical trust assessment model in IASR,the adopted model is superior to the IASR trust assessment model in the defense performance of malicious behavior;compared with the real-time and reliable THTR routing,there is a significant improvement in end-to-end latency,throughput,and routing overhead.