IEEE﹢802.16e节能类型Ⅲ的性能分析

117IEEE802.16eIII(066004)IEEE802.16eIIIGeom/G/1PerformanceAnalysisforPowerSavingofTypeIIIinIEEE802.16eHANLi,JINShun-fu,LIRan-ran,LIBo-guang(CollegeofInformationScienceandEngineering,YanshanUniversity,Qinhuangdao066004)AbstractBasedonthemechanismforpowersavingoftypeIIIinIEEE802.16e,thispapertakesintoaccountthememorylessnatureofuserinitiatedpacketarrival,tobuildaGeom/G/1queuewithmultiplevacation.ByusinganembeddedMarkovchainmethod,somequeuesystemmeasurementsarederived.Correspondingly,theformulaofsystemmeasuresintermsoftheaveragepacketresponsetimeandenergysavingratioarepresented.Consideringboththeenergysavingandthesystemresponsetime,itdevelopsacostfunction.Numericalresultsaregiventodemonstratethedependencyrelationshipsbetweenthesystemmeasuresandsleeplength,andtheoptimumlengthesofsleepmodefordifferentofferedloadsaregiven.KeywordspowersavingoftypeIII;sleep-mode;multiplevacationqueueingsystemComputerEngineering366Vol.36No.620103March2010··10003428(2010)06011703ATP3931IEEE802.16e(MobileStation,MS)IEEE802.16eMS[1]MSPoisson[2]I[3][4]IIIIIIMSIIIIII(multiplevacation)(exhaustiveservice)Geom/G/1(Geom/G/1)III2IIIIIIMS(BaseStation,BS)BSMSMSBSMSIII2Geom/G/11V2V12VVV=+VBRv3Geom/G/1(FirstInFirstOut,FIFO)DAS(60773100)(10671170)IEEE802.16e(F2009000475)(1983)[e-mail]118p(0p1)BernoulliSS(ProbabilityGenerationFunction,PGF){},1,2,jPSjsj===;()1jjjSzsz∞==∑BQPGF{},1,2,1jVjBVVppjPQjjp−⎛⎞⎜⎟⎝⎠===−(1)(){}()11VVVjBBVjppzpQzzPQjp=+−===∑−(2)[]()'11BBVpVEQQp==−(3)Geom/G/1(Markov)[]pESρ=1ρ(1)Geom/G/1WW0d=+0WdW0WPGF[5]()()()()()()011,||111zWzzzSzρρ−−=−−−(4)[]()()0121pESSEWρ−⎡⎤⎣⎦=−(5)[5]dWPGF()()()()[]()()11111=11VBdBpQpzzWzEQzVz−−−−−=−−(6)(6)1z=dW[]12dVEW−=(7)(4)(6)WPGF()()()()()()()()()01111VdzWzWzWzVzSzρρ−−==−−−(8)(5)(7)W[][][]()()011212dpESSVEWEWEWρ−⎡⎤−⎣⎦=+=+−(9)(2)VRVB1V2VJ1V(2V)JPGF{}()()11,1jVVPJjppj−==−(10)(){}()11z==1VjVjzpJPJjzpz∞=−=∑−(11)[]()1='11VEJJp=−(12)VBVB[][][]()()111BVVEQESVEBpρρρ==−−−(13)(13)(14)VR[][][]()()11VVVVEREBEJVpρ=+=−−(14)4III4.1IIIγIII[][]()111VEJVVERVργ−==E[T]QoS[][]()()[]11212pESSVETEWESESρ+−⎡⎤−⎣⎦⎡⎤=+=++⎣⎦−4.2[2][]4ES=,23V=0.4,0.6,0.8ρ=1VγE[T]γ1V1ρ1Vγ1V1Vργρ11V2ρ1V1Vρ211921VγE[T]1VE[T]γ1VF(V1)()[]()[]211123VVVCFVCETEBCETET⎡⎤=+++⎣⎦⎡⎤⎣⎦1C≡2C≡3C≡1C=3,2C=100,3C=2F(V1)1V333ρ1Vρ1V1V1V1V5IEEE802.16eIII2Geom/G/1IIIIEEE802.16eIII[1]XiaoYang.EnergySavingMechanismintheIEEE802.16eWirelessMAN[J].IEEECommunicationsLetters,2005,9(7):595-597.[2]XiaoYang.PerformanceAnalysisofanEnergySavingMechanismintheIEEE802.16eWirelessMAN[C]//ProceedingsofIEEECCNC’06.LasVegas,NV,USA:IEEEPress,2006:406-410.[3]HanYounhee,MinSunggi,JeongDongwon.PerformanceComparisonofSleepModeOperationsinIEEE802.16eTerminals[C]//Proc.ofICCS’07.Berlin,Germany:Springer-Verlag,2007:441-448.[4],.IEEE802.16e[J].,2007,33(19):10-12,32.[5],,.[M].:,2008.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(116)(710)102460L×/(×)5OXStreamingCoolSteamingCoolSteaming1.5%OXStreaming7.5%20%55GossipCPU[1],,.P2P[J].,2008,34(8):240-242.[2]ZhangXinyan,LiuJiangchuan,LiBo,etal.CoolStreaming/DONet:AData-drivenOverlayNetworkforPeer-to-PeerLiveMediaStreaming[C]//Proc.ofIEEEINFOCOM’05.HongKong,China:IEEEPress,2005.[3]StutzbachD,RejaieR,SenS.CharacterizingUnstructuredOverlayTopologiesinModernP2PFile-sharingSystems[C]//Proc.ofInternationalMeasurementConference.[S.l.]:IEEEPress,2005:267-280.[4],,,.P2P[J].,2007,18(11):2819-2829.[5]LiZhenhua,CaoJiannong,ChenGuihai.ContinueStreaming:AchievingHighPlaybackContinuityofGossip-basedPeer-to-PeerStreaming[C]//ProceedingsofIEEEINFOCOM’08.Phoenix,AZ,USA:IEEEPress,2008.[6],,.[M].:,2000.