摘要
ExistingEthernetPassiveOpticalNetwork(EPON)DynamicBandwidthAllocation(DBA)algorithmssufferfromthedisadvantageofidletimeloss,whichlowertheupstreambandwidthutili-zation.Thisletterproposesanimprovedupstreamtransmissionschemewithidle-timeeliminatingmechanism.Theoreticalanalysisandnumericalcalculationprovethattheimprovedschemecanef-fectivelyeliminatetheidletimeandenhancetheefficiencyofupstreamlinkutilization.Simulationresultshaveshownthatthebandwidthutilizationcanberaisedupto15%inheavy-loadscenarioswhilethetimedelayperformanceofAssuredForwarding(AF)andBestEffort(BE)servicesareimprovedsimultaneously.
出版日期
2011年04月14日(中国期刊网平台首次上网日期,不代表论文的发表时间)