以太无源光网络中面向多播业务的节能算法-论文.pdf

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1、第43卷第7期光子学报Vo1．43No．72014年7月ACTAPHOTONICASINICAJuly2014doi：10．3788／gzxb20l443O7．0706013以太无源光网络中面向多播业务的节能算法张林丛，刘业君，郭磊，魏可峰，戴翠琴。(1东北大学信息科学与工程学院，沈阳110819)(2中冶沈堪工程技术公司，沈阳110015)(3重庆邮电大学通信与信息工程学院，重庆400065)摘要：在面向多播业务的以太无源光网络中引入光网络单元混合休眠模式，提出面向多播业务的节能算法和改进的面向多播业务的节能算法，使光网络单元空闲组件能够得到充分休眠，并通过约束条件降低光网络单元的唤醒

2、次数，从而降低光网络单元能耗．改进的面向多播业务的算法与面向多播业务的算法相比，增加了光网络单元唤醒的约束条件，进一步降低了光网络单元的唤醒次数．仿真结果表明，与现有算法相比，所提算法在保证数据包时延的前提下更加节能．改进的面向多播业务的算法节能效果优于面向多播业务的算法，表明增加的约束条件有助于降低光网络单元的唤醒次数和能耗．关键词：以太无源光网络；节能；光网络单元；多播业务；独立休眠模式中图分类号：TN913．7文献标识码：A文章编号：1004—4213(2014)07—0706013—6EnergySavingAlgorithmsforMulticastTrafficinEther

3、netPassiveOpticalNetworkZHANGLin—cong，LIUYe—jun，GUOLei，WEIKe—feng～，DAICui—qin。(1CollegeofInformationScienceandEngineering，NortheasternUniversity，Shenyang，110819，China)(2ShenKanEngineering&TechnologyCorporation，MCC，Shenyang，110015，China)(3SchoolofCommunicationandInformationEngineering．ChongqingUni

4、versityofPostsandTelecommunications，Chongqing，400065，China)Abstract：Thehybridsleepmodeofoptica1networkunitwasintroducedintoethernetpassiveoptica1networkformulticasttraffic，andtheenergysavingalgorithmformulticasttrafficandimprovedenergysavingalgorithmformulticasttrafficwereproposed．Thetwoalgorithm

5、ssleeptheidlecomponentsofopticalnetworkunitsandreducethewakeuptimesofopticalnetworkunitsbyconstraints，sothattheenergyconsumptionofopticalnetworkunitscanbereduced．Comparedwithenergysavingalgorithmsformultieasttraffic，theimprovedenergysavingalgorithmsformulticasttrafficaddsaconstraintforopticalnetw

6、orkunitswakeup，soreducesthewakeuptimesofopticalnetworkunitsfurther．Simulationresultsshowthat，thetwoproposedalgorithmssavemoreenergythanthepreviousalgorithmwithguaranteedpacketdelay．Moreover，theimprovedenergysavingalgorithmsformulticasttrafficsavesmoreenergythanenergysavingalgorithmsformulticasttr

7、affic，whichshowsthattheaddingconstraintcontributestothereductionofthewakeuptimesandtheenergyconsumptionofopticalnetworkunits．Foundationitem：TheNationa1Natura1ScienceFoundationofChina(Nos．61172051，61302070，61302071，6130