考虑拓扑依赖的缆系水下网络维修策略分析  

Analysis of Network Maintenance Strategy for Cabled Underwarter Network Considering Topology Dependence

作　　者：樊诚[1] 周学军[1] 陈津 FAN Cheng;ZHOU Xuejun;CHEN Jin(Electronic Engineering College,Naval University of Engineering,Wuhan 430033)

机构地区：[1]海军工程大学电子工程学院,武汉430033

出　　处：《舰船电子工程》2022年第3期142-147,共6页Ship Electronic Engineering

摘　　要：缆系水下网络中各节点之间通过一定的拓扑结构相连,具备拓扑结构依赖性,不同拓扑位置的节点发生故障对整个系统的影响是不同的。针对这一问题,根据故障级别以及维修时序的不同,将维修策略分为被动维修策略、主动维修策略和定期维修策略;提出了考虑节点拓扑结构依赖性的缆系水下网络维修决策指标,建立了相应的维修策略仿真模型,并基于可变时间增量法的蒙特卡洛法结合深度优先算法对指标进行估计;分析了不同维修策略对系统可用性的影响。该分析方法适用于已知网络拓扑结构下的缆系水下网络维修策略选择,算例分析表明:该模型及算法能较好地体现拓扑结构依赖性对维修策略的影响。The nodes in cabled seafloor observatory are connected by a certain topology,which is topological dependency.Failure of nodes at different topological locations has different effects on the whole system.Concerning this issue,repairing decision indexs based on node topology dependence are proposed.Furthermore,repair strategys are classified as positive repair,passive repair and scheduled repair according to fault level and maintenance time sequence.Besides,a maintenance strategy simulation model considering topology dependence between nodes is established,the influence of different maintenance strategies on system availability is analyzed.This analysis method is suitable for the choice of maintenance strategy for cabled seafloor observatory with known topology.A numerical example shows that the model and algorithm can accurately reflect the influence of topological dependency on repair policy.

关 键 词：缆系水下网络 拓扑依赖 多态 被动维修 主动维修 定期维修 

分 类 号：TN915.02[电子电信—通信与信息系统]