节点可靠感知的差异保护虚拟航空网络映射算法  

Node reliability-aware protection-differentiated virtual airborne network embedding algorithm

作　　者：缪竞成 吕娜 高旗 陈柯帆 MIAO Jingcheng;LYU Na;GAO Qi;CHEN Kefan(College of Information and Navigation,Air Force Engineering University,Xi’an 710077,China;Unit 94860 of PLA,Nanjing 210000,China)

机构地区：[1]空军工程大学信息与导航学院,陕西西安710077 [2]中国人民解放军94860部队,江苏南京210000

出　　处：《系统工程与电子技术》2023年第8期2597-2605,共9页Systems Engineering and Electronics

摘　　要：针对集成僵化的传统航空网络难以在节点出现故障后快速高效调度网络资源,从而恢复任务执行的问题,提出了无线网络虚拟化环境下节点可靠感知的差异保护虚拟航空网络映射(node reliability-aware protection-differentiated virtual airborne network embedding,NRPD-VANE)算法。首先,节点映射采用新的节点重要度评价方法,综合感知故障可能、无线干扰和网络资源,为虚拟节点映射可靠物理节点;其次,链路映射根据节点重要度,采用P圈保护技术对映射路径节点实行差异保护。仿真结果表明,相比传统的节点保护映射算法,所提算法在保持较低恢复时延的同时,提高了映射成功率。In view of the integration ossification problem,traditional airborne networks have difficulty in allocating network resources to recover quickly from node failure and complete corresponding missions.Therefore,a node reliability-aware protection-differentiated virtual airborne network embedding(NRPD-VANE)algorithm is proposed for airborne networks in the wireless network virtualization environment.Firstly,node mapping adopts a novel node ranking method that comprehensively considers node failure possibility,wireless interference and network resources in order to map virtual nodes onto reliable substrate nodes.Secondly,link mapping adopts the efficient P-Cycle protection technology to protect the unreliable substrate nodes on the path that maps corresponding virtual links.Simulation results show that comparing with other latest node protection embedding algorithms,the proposed algorithm improves the embedding success ratio while maintaining a low average recovery delay.

关 键 词：航空网络 网络虚拟化 虚拟网络映射 差异保护 节点故障 P圈 

分 类 号：TN915[电子电信—通信与信息系统]