光纤延迟线和可调谐波长转换器在光分组交换网络竞争解决结构中的性能分析.pdf

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1、第33卷第9期光子学报VoI.33No.92004年9月ACTAPHOTONICASINICASeptember2004PerformanceAnalysisofFiberDelayLinesandTunableWavelengthConvertersforContentionResolutioninOptical*PacketSwitchedNetworks11121WangJianxin，ZengOingji，ZhangZhizhong，WangShenghua，xiaoShiIin1R&DCenterforBroadbandOptica

2、lNetworkingTechnology，ShanghaiJiaotongUniuersity，Shanghai2000302BeijingLyangTechnologyCo.，Ltd.，Beijing100085AbstractInthispaper，twocontentionresoIutionschemeshavebeenstudied，nameIy，feedback-basedfiberdeIayIines（FDLs）Architecture（FFA）andfeedback-basedcombinedsharingofFDLsand

3、tunabIewaveIengthconverters（TWCs）architecture（FFTA），fornon-burstytrafficandburstytrafficonthebasisofouropticaIpacketswitchedtest-bed.Itisdemonstratedthatfornon-burstytraffic，FDLisapreferabIechoicethanTWCwhiIeTWCisapreferabIeonethanFDLfornon-burstytraffictoresoIvecontentioni

4、nopticaIpacketswitchingnetworks.NumericresuItsconfirmthatFFAissufficienttoobtainareasonabIepacketIossprobabiIity（PLP）fornon-burstytraffic，whiIeforburstytraffic，FFTA，performsmuchbettergiventhatthetotaInumberofFDLsandTWCsusedeguaIstothoseofFDLsusedinFFA.Withtheincreaseoftheav

5、erageburstIength，thenumberofTWCsinFFTAwiIIgraduaIIyincreasesoastoobtainareasonabIePLP.However，evenforthetrafficwithhighdegreeofburstness，FFTAisstiIIacosteffectiveandrobustsoIution.KeywordsTunabIewaveIengthconverters；FiberdeIayIines；ContentionresoIution；OpticaIpacketswitchCL

6、CNTN919.8DocumentCodeAcontendingnodetodestination.Inthispaper，wewiII0Introductionemphasizeonreportingourprogressoncontention［1］OpticaIPacketSwitching（OPS）hasbeenresoIutiononthebasisofourtest-bed.Ourtest-bedregardedasanefficientswitchingtechniguetoexpIoitconsistsofthreeingre

7、ss/egressnodesandonecorethecapacityprovidedbydensitywaveIengthdivisionnode.TheswitchofcorenodeconsistsoffourmainmuItipIexing（DWDM）technoIogyforthenextfunctionbIocks：1）Inputstage，whereademuItipIexergenerationopticaIInternet.CommonIy，opticaIpacketseIectsthepacketarrivingonWwa

8、veIengthchanneIs，switchednetworkscanbecIassifiedintotwosorts，!1，⋯，!w，oneachoftheNi