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ID:4173570
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页数:31页
时间:2017-11-29
《optical network magazine 1 routing algorithms in wdm networks under mixed static and dynami》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、OPTICALNETWORKMAGAZINE1RoutingAlgorithmsinWDMNetworksunderMixedStaticandDynamicLambda-TrafficGuidoMaierCoreComViaColombo81-20131Milan,Italy(maier@corecom.it)AchillePattavinaDepartmentofElectronicsandInformation(DEI),PolitecnicodiMilanoPiazzaLeonardodaVinci32-20133
2、Milan,Italy(pattavina@elet.polimi.it)LuigiBarbatoCoreCom(tluibar@corecom.it)FrancescaCeciniCoreCom(Francesca.Cecini@rsisistemi.it)MarioMartinelliCoreCom;DEI,PolitecnicodiMilano(martinelli@corecom.it)AbstractDynamictrafficisbecomingimportantinWDMnetworks.Inthetrans
3、itiontowardsfulldynamictraffic,WDMnetworksoptimizedforaspecificsetofstaticconnectionswillmostlikelyalsobeusedtosupporton-demandlightpathprovisioning.OurpaperinvestigatestheissueofroutingofdynamicconnectionsinWDMnetworkswhicharealsoloadedwithhigh-priorityprotectedst
4、aticconnections.Bydiscrete-eventsimulationwecomparevariousroutingstrategiesintermsofblockingprobabilityandweproposeanewheuristicalgorithmbasedonanoccupancycostfunctionwhichtakesseveralpossiblecausesofblockingintoaccount.Thebehaviorofthisalgorithmistestedinwell-kn
5、owncase-studymeshnetworks,withandwithoutwavelengthconversion.Moreover,Poissonianandnon-Poissoniandynamictrafficsareconsidered.F.CeciniisnowwithRSISistemi,AltranGroup,CorsoStatiUniti,29-10129Torino,Italy.OPTICALNETWORKMAGAZINE2KeywordsWavelengthDivisionMultiplexing
6、,dynamictraffic,routingalgorithmsI.INTRODUCTIONHEpastfewyears(upto2001)witnessedtheflourishingoftelecommunicationindus-tryasoneofthefastest-growingandmostwide-spreadphenomenaineconomyeverTrecorded.ThecoreofthattechnologicalrevolutionhasbeenWavelengthDivisionMultipl
7、exing(WDM)opticalnetworks,withtheiruniquecapabilitytoofferthebestsolutiontothelargebandwidthdemandononesideandtoguaranteehighqualityofserviceandhighreliabilityontheotherside.ThankstothesefeaturestheareaofapplicationsofWDMnetworksdrasticallyexpandedfromtheoriginal
8、voicetraffictransporttobecomeacommonhighspeedtransportplatformcarryingdata,videoandvoice.WDMprotocolhasbeendevelopedinordertooperateinanintegratedmulti-protocol
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