多跳网络中节点移动性对病毒传播行为的影响  

Influence of node mobility on virus spreading behaviors in multi-hop network

作　　者：陈红红 李鹏[1] 李长吾[1] 王智森[1] CHEN Honghong;LI Peng;LI Changwu;WANG Zhisen(School of Information Science and Engineering, Dalian Polytechnic University, Dalian 116034, China)

机构地区：[1]大连工业大学信息科学与工程学院,辽宁大连116034

出　　处：《大连工业大学学报》2017年第5期375-379,共5页Journal of Dalian Polytechnic University

基　　金：辽宁省自然科学基金项目(2015020031)

摘　　要：随着智能终端硬件配置的提高,多跳网络的开放性和分布式结构给网络安全带来了严峻的挑战,使其具备了恶意代码活动的硬件条件。传统的计算机病毒传播模型未考虑网络的动态拓扑特性,不能被直接应用到多跳网络的研究中。通过将经典SI病毒传播模型应用到基于RWP模型的多跳网络中,研究节点的通信半径、病毒传播时间、初始感染节点的个数和节点的密度对病毒传播行为的影响。仿真结果表明,节点的移动速度对病毒的传播行为有显著的影响,节点的移动导致病毒传播最快时对应的节点速度近似为节点的通信半径与病毒传播时间的比值,而与节点的密度和初始感染节点的个数几乎无关。With the improvement of the hardware configuration of intelligent terminals,the multi-hop network was facing with some serious challenges for no centralized administration and fixed network infrastructure,providing hardware conditions for malicious code activity.Traditional models of computer virus spreading could not be applied to multi-hop network because of the ignoring dynamic topology of network.When the classic susceptible-infected（SI）model was applied to multi-hop network based on random way-point（RWP）model,the influence of parameters contact duration of virus,communication radius of node,distribution density of node and the number of initial infected nodes on virus spreading behaviors were examined.Simulation results showed that node mobility had significant effect on virus spreading behaviors.A special node speed could lead network to appear the fastest-spreading virus phenomenon was approximately equal to the ratio of communication radius of node to contact duration of virus.Distribution density of node and the number of initial infected nodes almost did not affect the special speed.

关 键 词：多跳网络 节点移动性 SI模型 病毒传播时间 

分 类 号：TN915.01[电子电信—通信与信息系统]