摘要
为提高无线MESH网中多路径路由协议AOMDV的安全性,在AOMDV中引入信任模型,通过该模型在每个节点上维护一个信任度表;源节点在路由建立前对节点信任度进行验证,当节点的信任度值低于限定值时,就孤立该转发节点,在数据转发过程中采用转移概率算法,将数据随机分散在若干个路径中传输,以此减小数据被截获的概率,提高AOMDV路由协议的安全性。仿真结果表明,在包含恶意节点的WMN中,改进后的路由协议有较好分组投递率和较低的数据截获率。
To improve the security of AOMDV（Ad Hoc On-demand Multi-path Distance Vector） in WMN,this paper introduces the trust model and transition probability algorithm in AOMDV.The trust model maintains a reputation table in each node.Before routing setup,the source node will verify the trust degree of each node,which will be isolated if its degree is lower than the limited value.In order to reduce the possibility of the interception as well as to improve the security of AOMDV,transition probability is used to transmit data which disperses randomly on certain routing paths.Simulation results indicate that this improved protocol has a better packet delivery fraction and lower interception rate in WMN including malicious nodes.
出处
《西华大学学报（自然科学版）》
CAS
2010年第4期92-95,共4页
Journal of Xihua University:Natural Science Edition
