摘要
通过引入流量强度指数和流量分布指数,建立了不同网络流量下的复杂保障网络级联失效抗毁性模型。基于该模型比较分析了无标度网络、随机网络和复杂保障网络在不同流量强度和流量分布下对单个节点的随机失效和故意攻击的抗毁性。结果表明:复杂保障网络的抗毁性随着流量强度的增加急剧下降。此外,流量分布对复杂保障网络的抗毁性也有显著影响。
A simulation model based on cascading failure for the invulnerability of complex logistics networks with different flows is proposed. In this model, the intensity and distribution of network traffic is controlled by an a-index and a β-index, respectively. The variety of invulnerability is simulated under random failures and intentional attacks on different networks. Result shows that the invulnerability performance declines rapidly when the network traffic is increased. Furthermore, the distribution of network traffic also has a strong impact on the invulnerability performance.
出处
《火力与指挥控制》
CSCD
北大核心
2010年第3期9-13,共5页
Fire Control & Command Control
基金
国家自然科学基金资助项目(70501032
70771111)
关键词
保障网络
级联失效
抗毁性
流量强度
logistics networks, cascading failure,invulnerability, network traffic
