复杂网络上级联失效的负载容量模型  

Load-Capacity Model for Cascading Failures of Complex Networks

作　　者：窦炳琳[1] 张世永[1] 

机构地区：[1]复旦大学计算机科学技术学院

出　　处：《系统仿真学报》2011年第7期1459-1463,1468,共6页Journal of System Simulation

摘　　要：研究复杂网络上级联失效的过程和性质有助于指导系统建设并提高其鲁棒性能。在分析和总结相关工作的基础上,提出了一种更符合实际网络的负载容量非线性模型。通过在B-A无标度网络和Internet AS级网络上进行仿真,验证了模型的可行性,并且发现模型参数在一定条件下具有负指数关系。考察网络成本和鲁棒性关系,发现该模型能够更好的抵御级联失效,并且在获得较高鲁棒性能的情况下有较小的投资成本。To research on processes and features of cascading failure on complex networks is helpful to guide system construction and improve its robustness.Based on related works,a load-capacity non-linear model was proposed,which is more suitable for real network.The simulation was executed on B-A scale-free network and Internet AS level topology.Its results show that the model is feasible and negative exponential relationship is found between model parameters under certain conditions.Considering network cost and robustness,it is validated that the model can defense cascading failure better and investment costs are smaller in case of obtaining higher robustness.

关 键 词：复杂网络 级联失效 鲁棒性 负载容量模型 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]