简介:TheadvantageofATMtechnologyforstatisticallymultiplexingnetworkresourcesbydifferentusersinvokesthecompetitionofnetworkresources.Thiscompetitionhassomedamagingeffectsonmessagetransmitting.TheresearchfortestingmethodsandtechnologyofATMisimportantforustodevelopATMnetworks,topromotetheirconstruction,toensurethatvariousATMdevicesprovidedbydifferentprovidersinteroperateproperlyandtoprovideexcellentservicesfortelecommunicationusers.Afterdiscussingtheabstracttestingmethodofconformancetestingandtheabstractdescriptionofprotocoltesting,thethesisputsforwardakindofabstracttestingconfigurationforATMtestingandakindofabstractdescriptionmethodfortestingcase.Fromtheangleofapplication,thethesisdiscussesthebasicrulesforATMtesting.Afterthat,thethesispointsoutthattheATMtestingmustbemadefromthefouraspectsofnormaltesting,conformancetesting,performancetestingandinteroperabilitytesting.Thegeneraltestingmethods,generalconfigurationandconnectionforATMtestingandtheselectionofATMtestingitemsarediscussed,respectively,inthefouraspects.CombinedwiththecharacteristicsofthetrafficssupportedbyATMsystems,thethesisdiscussesseveralkindsoftrafficmodelsforconductingATMtesting.Onthebasisofstudyingvarioustrafficmodels,theauthorclassifiestrafficmodelsforATMtestingasthreekinds:periodictrafficmodels,stochastictrafficmodelsandmanualtrafficmodels.Theparametersofdescribingtrafficmodelsandtheircalculatingmethodarediscussedinthethesis.Anewkindofperiodiccell-sequencetrafficmodelisproposedinthisthesis.Theperiodiccell-sequencetrafficmodelhasexcellentlinearlydescendingcharacteristicsinthecellinterval.ThetrafficmodelsdiscussedinthisthesiscanbeappliedtovariousATMtestingcases.Fromthepointofnormaltesting,physicallayertesting,ATMlayertesting,AALlayertesting,networkmanagementtesting
简介:Inthispaper,abroadbandmultimediaapplicationplatform,BaMAP,isintroduced.TheBaMAPaimstooffercontentandserviceprovidersagoodintegratedenvironmentforefficientcontentproduction,management,deliveryandsharing.Itsupportslarge-scalehierarchicalstorage,aswellasmechanismsforcontentdistributionandqueriesfromremotenodes.Theon-demandservice,partoftheBaMAP,offerstwoaccessinterfaces,DVB-CandIP,whichallowtheplatformtorunonmostoftheexistingaccessnetworks.
简介:Itisprovedthatisa(Δ+1)-colorablegraph,soarethegraphsG×PnandC×Cn,wherePnandCnarerespectivelythepathandcyclewithnvertices,andΔthemaximumedgedegreeofthegraph.TheexactchromaticnumbersoftheproductgraphsPr1×Pr2×…×PrnandC3k×C2m1×C2m2×…×C2mnarealsopresented.Thusthetltalcoloringconjectureisprovedtobetrueformanyothergraphs.
简介:在MWC2018(世界移动大会)上海展上,中国联通研究院联合业界合作伙伴,包括华为、高通、联发科技、紫光展锐、Intel、三星、vivo、爱立信等联合发布了《4G+面向5G演进的终端及芯片技术白皮书》,旨在协同产业链各方就未来终端演进方向达成共识,牵引端、管、芯协同发展,从而加速4G+终端新技术落地商用,为5G的生态培育和商业模式探索打下坚实的基础。《4G+面向5G演进的终端及芯片技术白皮书》提出4G+终端面向5G演进的终端多个关键能力:4天线接收(4Rx)、支持TM9传输模式,载波聚合以及高阶调制等,指明了未来4G+终端技术演进的方向。这些关键能力可以为用户带来更高的速率体验,更低的业务时延,并能大幅提升网络容量,为满足5G时代业务需求奠定基础。
简介:Theapplicationofcellularneuralnetworks(CNN)forsolvingpartialdifferentialequations(PDEs)isinvestigatedinthispaper.TwokindsofthePDEs,theheat-conductionequationandPoisson'sdquation,areconsideredtobetypicalexamples.TheycanbecomputedinrealtimebyusingtheCNN,whiletheCNN'shardwareisimplementedbytheintegratedOP-AMP.Theexperimentalresultsshowthatthehardwareperformenceisinagreementwiththatgivenbythecomputersimulation.Therefore,theCNNisanewpowerfultoolforsolvingPDEs.