基于模糊信任的无线传感器网络可信路由

由于无线传感器网络（WSNs）经常部署在苛刻环境下,节点易被物理俘获或损坏,无线多跳通信的方式也使得网络容易遭受各种信号干扰和攻击,路由安全显得尤为重要。在分簇路由协议的基础上,引入了节点可信度作为路由选择的度量,提出了基于模糊信任的无线传感器网络可信路由模型。该模型中,每个节点的信任值由剩余能量、包转发率、路由信息篡改以及声明诚实度等4个属性采用变权模糊综合评判算法得到。仿真结果表明：在变权模糊综合评判算法中,通过提高具有过低值的属性的权值,可以突出节点的缺陷,使得具备过低剩余能量或是过低包转发率,路由信息篡改信任,或过低诚实度任意一个缺陷的节点都不能够得到较高的信任值从而被选为簇头节点,避免行为恶意的节点破坏网络路由。

Reliable routing in WSNs based on Fuzzy trust

Wireless sensor networks（ WSNs） is often deployed in harsh environment and node can be easily captured or damaged,wireless multi-hop communication method also makes network more vulnerable to various kinds of signals interference and attacks,routing security is particularly important.On the basis of clustering routing protocol,reliable routing model of WSNs based on fuzzy trust is proposed.In this mode,trust value of earch node is obtained by residual energy,packet forwarding rate,routing information distortion and honesty degree,using variable weight fuzzy comprehensive evaluation algorithm.Simulation result shows that in variable weight fuzzy comprehensive evaluation algorithm,by improving weighting of attribute with too low value,nodes with some defective can be avoided choosing as cluster head,and avoid the behavior of malicious network routing node destruction.