简介:Inthispaper,aquantitativeQoSmanagementimplementmechanisminIP-DiffServispresented.Theapproachhasthreemerits:(1)itoptimizesboththerouteselectedforserviceclassbytrafficengineeringinnetworklayerandtheserviceclassselectedfortheuserservicesbynetworkplaninservicelayer,(2)itensuresquantitativeQoSfortheuserserviceinDiffServ,(3)itachieveshighresourceutilization,andachievesbetterperformancewithlesscostfortheuserserviceandselectedroute.Simulationhasverifiedthesemerits.
简介:Tohelpthepoorandtodeveloptourismaretwomportantproblemsinpoverty-strickenarea.Howeve,theywereisotatedforyears.ThePPETstrategywasputforwardinthispaperbasedonPPT.TheFeasibilityandtherealisticmeaningofthestrategyindevelopingtheecotourism,overcomingpoverty,andachievingprosperityofminorityareasinwesternChinaareanalyzedbytakingXinlongcountyofGanziTibetanAutonomousPrefectureinStchuanProvinceasanexample.