异构无线网络中的智能型呼叫准入控制算法分析与仿真

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1、东北大学硕士学位论文Abs湘etAnIntelligentCallAdmissionControlforHeterogeneousMobileNetworksAbstracthireeentyears，teehnologiesofeonununieationhavebeendeveloPedraPidly.Newwirelessconunumeationsystememergesoneafteranother，andallofthesesystemscomPrisetheheterogeneousnetworks.It15wellaeeePtedbyboththeindu

2、strialsandtheaeademiesthatthenextgenerationnetwork伽GN)shouldbeanoPenhcterogeneouswirelessnetwork(HWN)environment，whicheanintelligentlyintegratetheexistingandthefutureradioaceesssystems.hithisdissertation，undertheenvironmentofHWN，theProblemsofradioresourcemanagementareintensivelystudied.Th

3、eeonienisofthisworkarelistedasfollows:CACalgoritlllnintheHWN15studiedinthiswork.ABP一ACalgorithm15ProPosedforanintegratedeellular/WLANnetwork，inwhichtheneuralnetworkwithbaekProPagation(BP)algorit知m15usedtoadjusttheamountofdueresouree.ThefunetionofBPalgorithm15toinielligentlyPrediettheduere

4、sourceinthenextinstant，andtomakedecisionwhethertoreeeivethecallortorejectthecallaceordingtotheoutPut.OnthebasisofBP一ACalgorithm，theProblemofbandwidthdegradation15studiednext.BeeombinedwithBP一ACalgorithm，aBPBDAesCACalgorithm15eomPosed.ThefunctionofBDA15todeereasethealloeatedbandwidthofon一g

5、oingeallsforneweomingeallswhenthere15noenoughbandwidthtoaeeePttheneweomingealls.ThisPolieycanimProvetheservieeabilityofsystem.Andthis15thesecondkeyPointthatwestudied.ThefunctionofBUA15toimProvethequalityofserviee(QoS)whenthere15enoughresoureeavailable.OnthebasisofBPBDAesCACalgorith肌，aBPBM

6、esCACalgorithm15eomPosedineonsiderationofBUA.The伪netionofBUA15toexeeutebandwidthuPgradewhentheloading15alleviated，inordertoProvidebetterQoS..InsimulationwithMATLAB，theconclusion15workedout.First，theBPesCACalgorithmmakesbetterPerformancecomParedwithFixed--CACandD户amic--CAC.ItdeereasesNCBPt

7、oagreatextent，atthesametimeitmaintainsHCDPinan111才一“东北大学硕士学位论文AbS加CtaeeePtablelevel.ItalsoincreaseresourceutilizationrateandimProvethegradeofsystem(GoS).Second，theBPBDA--CACalgorith叮。吻erformsineveryasPeetthantheBP一ACalgorithm，suchasinNCBP，HCDP，GoS.Last，theBPBMseCACa