关于无线自组网的分簇信任安全路由研究仿真  

Research and Simulation of Clustering Trust Secure Routing in Wireless Ad Hoc Networks

作　　者：朱研[1] 张辉[1] ZHU Yan;ZHANG Hui(College of Information Science and Engineering,Hebei University of Science and Technology,Shijiazhuang Hebei 050018,China)

机构地区：[1]河北科技大学信息科学与工程学院,河北石家庄050018

出　　处：《计算机仿真》2020年第6期310-313,共4页Computer Simulation

基　　金：河北省高等学校科学技术研究项目(ZD2018236)。

摘　　要：由于无线自组网拓扑结构容易改变,能量和带宽受限等因素,给安全路由和能量均衡带来严峻挑战,为此,提出了关于无线自组网的分簇信任安全路由协议。首先设计了节点信任度模型,从直接信任与推荐信任两方面进行优化设计。在计算直接信任度时,采用加权方式引入能量信任度,用于改善节点的能耗;在计算推荐信任度时,采用熵权方式融合了直接推荐与间接推荐,用以改善信任度的可靠性。然后设计了非均匀分簇,引入惩罚系数,用于引导信任度计算的方向,有利于快速找出分簇中的恶意节点,为避免簇头能耗过高,根据最小能耗机制找到合理的分层,并利用簇头和层间关系计算出节点簇的合理大小,最终完成节点分簇。通过仿真,验证了分簇信任安全路由协议有效提高了无线自组网的数据安全性,避免异常节点的影响;并且明显改善了节点的能量均衡性,显著延长了网络的生存期。A secure routing protocol for clustering trust in wireless ad hoc networks is proposed.Firstly,the trust model of nodes is designed,the optimal design is carried out from two aspects of direct trust and recommendation trust.When calculating the direct trust degree,the energy trust degree is introduced by weighting method,it is used to improve the energy consumption of nodes.When calculating the trust of recommendation,the method of entropy weight combines direct recommendation with indirect recommendation,to improve the reliability of trust.Then non-uniform clustering is designed,the penalty coefficient is introduced to guide the direction of trust calculation,It is advantageous to quickly find malicious nodes in clustering.In order to avoid excessive energy consumption of cluster heads,a reasonable hierarchy is found according to the minimum energy consumption mechanism.The reasonable size of the node cluster is calculated by using the relationship between cluster heads and layers,so as to complete the clustering.Through simulation,it is verified that the clustering trust secure routing protocol can effectively improve the data security of wireless ad hoc networks,avoid the impact of abnormal nodes.It also improves the energy balance of the nodes and prolongs the lifetime of the network.

关 键 词：无线自组网 信任度模型 惩罚系数 非均匀分簇 安全路由协议 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]