Abstract: Dempster Rule based Network Fault Diagnosis(DRNFD) system for Ad hoc network troubleshooting is brought forward, in which “abnormal degree” is defined by the vector of probability and belief functions in a privileged process. A new formula based on Dempster rule is presented to decrease false positives. DRNFD reduces false positives effectively and can be applied to real-time fault diagnosis. Operational prototypical system demonstrates its feasibility and gets the effectiveness of real-time fault diagnosis.

Key words: network troubleshooting, Dempster rule, reliability analysis

摘要： 通过对Ad hoc网络状态和故障指标的研究，提出一种基于Dempster规则的故障诊断方法(DRNFD)。应用DRNFD诊断故障能有效降低漏报率和误报率，使实时故障诊断成为可能。通过仿真实验进行可行性论证，获得了实时诊断的技术效果，证实了该方法的可行性。

关键词: 网络故障诊断, Dempster规则, 可靠性分析

CLC Number: 

• TP309