摘要
在系统冗余前提下,提出动态配置原子组件来增强系统生存性方法;根据中心极限定理和系统运行历史数据,获取原子组件生存性变化曲线,并结合系统服务效率以及服务质量等,设计了基于自主配置的生存性增强算法。通过实验验证了生存性计算方法在原子组件不同失效率下的正确性和有效性。仿真实验表明,该算法在原子组件遭受攻击和服务能力下降情况下都能有效保证关键服务的生存性。
Based on redundancy and diversity, the method of enhancing system survivability was proposed by dynamically configuring atomic modules. According to the history average response time, survivability curves were drawn. The autonomous configuration algorithm was designed based on the survivability of atomic modules, system efficiency and quality of service. The contrast experiment validated the algorithm＇s correctness and validity in the condition of atomic modules have different failure rate. The simulation confirmed that this algorithm can enhance the service survivability when atomic module under attack or be ageing
出处
《通信学报》
EI
CSCD
北大核心
2007年第12期102-107,共6页
Journal on Communications
基金
国家重点基础研究发展计划("973"计划)基金资助项目(2007CB311100)
国家242信息安全计划基金资助项目(2005A33)~~
关键词
生存性增强
自主配置
原子组件
中心极限定理
survivability enhancement
autonomous configuration
atomic module
central limit theorem
