摘要
针对网络系统中节点存在"正常"、"亚健康"、"故障"三种状态的情形,研究了网络系统亚健康状态下的性能退化评估方法。依据网络系统"亚健康"状态的特征及网络系统中节点之间的相互关系,深入探讨了影响网络系统效能退化的因素,提出了一种基于微分方程的网络系统"亚健康"状态的性能退化评估模型,进而预测"亚健康"网络系统未来可能发生的转化规律。理论分析及试验论证表明,所构建的模型具有一定的合理性,并具有良好的应用前景。
The nodes in network systems have three statuses： normal, subhealth and fault. To better analyze the behavior of the network system, a performance degradation evaluation method is presented based on the subhealth network system. Firstly, the influencing factors of performance degradation in network systems are discussed. Then, the performance degradation evaluation model of subhealth network systems is presented based on differential equations according to the relationship between the subhealth state features and the nodes in network systems. Finally, the trans formation rules from subhealth to health statuses are predicted. Theoretical analysis and simulation results show that the model is reasonable and effective.
出处
《南京航空航天大学学报》
EI
CAS
CSCD
北大核心
2011年第B07期60-63,共4页
Journal of Nanjing University of Aeronautics & Astronautics
基金
国家自然科学基金(61004118)资助项目
重庆交通大学博士启动基金(07-01-12)资助项目
关键词
网络系统
亚健康
性能退化评估
微分方程
network systems
subhealth state
performance degradation evaluation
differential equation
