面向航空自组网的节点失效波及影响分析模型  

Node failure ripple effect analysis model for aircraft ad hoc network

作　　者：谢丽霞[1] 严莉萍 杨宏宇[1] XIE Lixia;YAN Liping;YANG Hongyu(College of Computer Science and Technology,Civil Aviation University of China,Tianjin 300300,China)

机构地区：[1]中国民航大学计算机科学与技术学院,天津300300

出　　处：《计算机应用》2022年第2期493-501,共9页journal of Computer Applications

基　　金：国家自然科学基金民航联合研究基金资助项目(U1833107)。

摘　　要：为有效分析航空自组网(AANET)中节点失效对整个网络造成的影响,并提高网络在发生安全事件之后的稳定性,提出一种面向AANET的节点失效波及影响分析模型。首先,根据AANET的主要业务建立有向加权业务网络,基于实时AANET建立以各类航空器为节点的无向加权物理网络,并通过业务−物理网络映射关系建立相依网络模型;其次,提出面向AANET的失效传播模型,分析网络节点状态及其之间的相互转换方式;最后,基于链路生存性改进失效流量再分配算法,并将其应用于构建的相依网络模型上,得到因节点失效波及反应转化成失效节点和业务降级节点的集合,并将其用于分析网络各时刻的波及影响情况。实验结果表明,所提出的模型能更准确反映AANET节点失效波及影响情况。To effectively analyze the ripple effect of node failure in Aircraft Ad Hoc Network(AANET)on the whole network and improve the stability of the network after occurring security incidents,a node failure ripple effect analysis model for AANET was proposed.Firstly,the directed weighted business network was established according to the main business of AANET,the undirected weighted physical network was established with various aircraft as the nodes based on real-time AANET,and the interdependent network model was built through the business-physical network mapping relationship.Secondly,a failure propagation model for AANET was proposed,and the node states and transformation modes between them were analyzed.Finally,the failure traffic redistribution algorithm was improved on the basis of link survivability,which was applied to the established interdependent network model to obtain the set of failed nodes and business degradation nodes caused by the ripple effect of node failure,then the set was used to analyze the ripple effect condition of the network at every moment.Experimental results show that the proposed model can effectively analyze the ripple effect condition of node failure in AANET.

关 键 词：航空自组网 节点失效 波及影响 相依网络 链路生存性 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]