Study On Designing Profiles Of Reliability Simulation Test For Mission-oriented Network System

Recently, many researchers from various fields focus on the study ofmission-oriented network system reliability for its important theoretical values andextensive potential applications. Simulation test is used as a significant method to studythe reliability of mission-oriented network system, in which profile design is consideredas a key step. This dissertation aims at studying network system reliability and themethods of designing profiles for network system reliability simulation test. Theprofiles include mission profile, environment profile and structure profile. Finally, acase of logistics support network system is used to evaluate these methods.The main concepts and contributions of this dissertation are as follows.1) A method of building mission profile is proposed.A method of building mission profile is proposed based on deep analysis on thecharacteristics of mission of network system. Firstly, decompose and then concludemissions of network system. Secondly, build mission models based on sub phases ofmission from decomposition. Thirdly, design mission sampling strategy based onmission models. Finally, build the mission profile.2) A method of building environment profile is proposed.Network system should focus on different environment parameters compared tousual system. Besides, different network systems focus on different environmentparameters. A method of building environment profile is proposed based on analyzingenvironment parameters of network system. Environment parameters are classified intotwo types, traditional environment parameters and unique environment parameters.Profiles are built for each type of environment parameters, and then synthesize them togain the integrated environment profile.3) A method of building structure profile is proposed.A method of building structure profile of network system is proposed based onanalyzing characteristics of network system. Firstly, search and find every meta-missionin which two terminal nodes are connected. Secondly, design structure samplingstrategy based on minimal path. Thirdly, extract minimal path samples using thestructure sampling strategy. The minimal path samples are worked as structure profileof network system for each meta-mission.