摘要
针对车辆自组织网络(VANET)等移动物联网中网络拓扑变化频繁问题,我们提出了一种面向移动物联网环境的动态路由新协议.该协议将连通概率作为重要参数,其计算方法依据参数节点和它的最近节点的间距,间距的分布按照指数分布;协议中采用了贪婪机会转发(GOF)策略,GOF策略在包的递交率和平均跳数等方面有效提高了车辆网等移动物联网目标的性能.一系列的测试表明,与传统的路由协议相比,我们设计的协议在递交率、平均跳数以及端到端的延时等方面均表现出很好的效果.
In order to solve the frequent changes of network topology in VANET of Mobile Internet of Things(IOT),we propose a kind of new dynamic routing protocol for mobile IOT.The probability of connectivity as an important parameter of the dynamic routing method is used in this protocol,at the same time,it includes a new method to calculate the probability of connectivity which is based on the distance(spacing)of the parameters node and its nearest node(the distribution of the spacing is exponentially distributed).The proposed routing protocol uses the Greedy Opportunity Forwarding(GOF)strategy.The GOF effectively improves the performance of the car networking in terms of packet delivery rate and average number of hops,and improves the performance of the algorithm in the application of mobile IOT.
作者
张德干
汤雅梦
张捷
张婷
牛红莉
ZHANG De-gan;TANG Ya-meng;ZHANG Jie;ZHANG Ting;NIU Hong-li(School of Computer Science and Engineering,Key Laboratory of Computer Vision and System (Ministry of Education)and Tianjin Key Lab of Intelligent Computing and Novel software Technology,Tianjin University of Technology,Tianjin 300584,China;Beijing No.20High School (Haidian District,Beijing),Beijing 100085,China)
出处
《天津理工大学学报》
2018年第6期41-48,共8页
Journal of Tianjin University of Technology
基金
国家自然科学基金(61571328)
天津市重大科技专项(15ZXDSGX00050
16ZXFWGX00010)
天津市科技支撑重点项目(17YFZCGX00360)
天津市自然科学基金(15JCYBJC46500)
天津市科技创新团队项目(12-5016
2015-23)
关键词
移动物联网
车联网
转发节点
连通性
GOF
路由
mobile IOT
Internet of Vehicle
forwarding node,connectivity
GOF
routing
