摘要
耦合映像格子(CML)已经被广泛用于研究复杂系统的时空动力学行为.研究树形拓扑结构CML的相继故障对改善树形网络的安全性和可靠性具有重要的意义.本文将CML的相继故障模型作用于具有十个节点的树形网络拓扑结构中,通过仿真,分析出具有树形网络拓扑结构且节点数固定的网络在受到蓄意攻击时,不同的结构出现的故障节点的个数和影响它的参数,以及在这些拓扑结构中最快达到崩溃的树形结构.另外,给出故障规模和被攻击节点的度之间的关系和不同的耦合强度对扰动临界值的影响.
CML（Coupled Map Lattice） has been widely used to study the temporal and spatial dynamics of complex systems behavior.Research on tree topology CML cascading failures to improve the tree network security and reliability is important.In this paper,we make cascading failure model in CML to the topology of the trees with 10 nodes.By simulation and analysis the number of node failures and impact of its parameters,we find the structure of these topology which the collapse of the fastest to reach when nodes of network with tree topology and the fixed nodes are attacked deliberate.In addition,we give the relationship between the number of node failures and degree of nodes attacked and describes the impact of disturbance threshold from different coupling strength.
出处
《青海师范大学学报（自然科学版）》
2010年第3期35-38,共4页
Journal of Qinghai Normal University(Natural Science Edition)
关键词
树形拓扑结构
相继故障
耦合映像格子
故障节点
扰动值
耦合强度
tree topology
cascading failure
coupled map lattices
fault node
disturbance threshold
coupling strength
