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MANETQoSMAQF/MAC姚尹雄王豪行陈兴义*(上海交通大学电子工程系上海200030)(*台湾元智大学电机工程系台湾)摘要要实现移动AdHoc网络MANET民用化,必须解决其MAC层的QoS保障问题MAQF/MAC是一种新的MANET自适应QoS介质访问控制策略,该策略可以实时动态地测试网络资源,及时调整业务流对资源的访问和占用本文着重从仿真实现角度,对MAQF/MAC协议的原理预留表结构QoS路由压缩算法等问题进行探讨仿真结果表明,MAQF/MAC在资源利用率和分级服务的QoS保障能力等方面明显优于MACA/PR关键词移动AdHoc网络,介质访问控制,服务质量,仿真,资源利用率0引言AdHocMANET,,QoSMANET,QoSMACMANETQoSMAC,,QoS[1,2]MACA/PRQoSMAC,,,[3]MACA/PR:,QoS,,QoS,;,,,,MACA/PR,QoSMACMAQF/MAC,,QoSMACA/PR[4]MAQF/MACISOOSI,OPNETNS2PARSEC,MAC,MAQF/MAC,QoS1MAQF/MAC策略MANET,QoS,MANET,,QoS,,QoS,,MACA/PR,,202002.11,1965,,;:,,QoS;(:20010919)QoSMAC,MAQF/MAC,QoS1MAQF/MAC,PTESTFPMAQF/MAC:1MAQF/MAC1:IEEE802.11,CYCLE,2:,,QoS3:,,QoS,84:,QoS,8;4,5:QoS,,;6:,CYCLE,;77:RT(ReservationTable),RT,5RT;6,,,8:,IEEE802.11(RTS/CTS),9:,PTESTFTESTF,RTTESTF,,QoS10:MACA/PR,MAQF/MACMACA/PR:(1)MAQF/MAC,MACQoS,MACA/PRQoSMACA/PR,MAQF/MAC21:MANETQoSMAQF/MACQoS(2)MAQF/MAC,,MAQF/MAC,,MAQF/MAC,MAQF/MACMACA/PR2仿真结构与算法MAQF/MAC,MAQF/MACQoS2.1预留表结构RTQoSMANET,,2,CYCLE,(,),STATEINFSINFD,STATE,(idle)(snd)(rcv)(end)(ins)(ind);INFS;INFDSTATE:(1);(2),;(3),;(4),2RT预留表同心圆盘工作机理MAQF/MAC,,,,2RT,,RT3,,RT;302233633,,,:,,,3222002.11RT,,t,,,,,,,,,,MACQoS2.2QoSMANET,,,QoS,MAQF/MAC,MAQF/MAC:1:2:3:,Scan()()4:,Sum,Scan(),7;Block,Scan()5:Block,,Link6:Link7:Scan(),,4~7,8:,Sum,Link[]9:Sum:(1),QoS,,(2)1,QoS,,QoS;,(3)1,QoS,,QoS;,,,2.3MAQF/MACMAQF/MAC,MANET,MACQoS,MAQF/MAC,,:资源压缩条件(基本代价函数)(1)(2)(3),,压缩算法(1)a,;(2)Link[](3),(2)(2);(2),(3),;,,,(3),[5]3仿真实验及分析3.1MAQF/MAC,23:MANETQoSMAQF/MAC,4,800kbit/s,P1,3min,11,PKT1~PKT5/;TEST,PKTI,ACKP141RTS1kCTS1kACK1kPKT10.2kPKT22.5kPKT34kPKT47kPKT59kDS-SS0.5kTEST0.2kMAQF/MACRTS2msCTS2msTEST,PKT1,ACK4msTEST,PKT2,ACK7msTEST,PKT3,ACK9msTEST,PKT4,ACK13msTEST,PKT5,ACK15ms3.25~7()5,(0.1flow/s,1flow/s),MACA/PRMAQF/MAC;(1flow/s,10flow/s),MAQF/MACMACA/PR,MAQF/MAC;MAQF/MAC,,,,56,MACA/PRMAQF/MACMAQF/MAC;,MAQF/MAC,,MACA/PR,,QoS,MAQF/MACQoS67,,MACA/PRMAQF/MAC,MAQF/MAC2;,MAQF/MACMACA/PR,MAQF/MAC242002.11MACA/PR,MAQF/MAC45(MACA/PR1.52)MACA/PR,MAQF/MACMACA/PRQoS7,,(),4结语MANETMACQoSMAQF/MAC,MAQF/MAC,QoS,,MACA/PR,MAQF/MAC,MAQF/MAC,,QoS,,,,MAQF/MACMANETMACQoS:本研究得到台湾远东集团和台湾元智大学R&D中心的资助,在此表示感谢:[1]AndrewM,GarciaLunaAcevesJJ.SupportingrealTimemultimediatrafficinawirelessLAN.[2]SobrinhoJL,KrishnakumarAS.IEEEJournalonSelectedAreasinCommunications,1999,17(8):1353[3]LinCR,GerlaM.Asynchronousmultimediamultihopwirelessnetworks.In:Proceedingsof16thAnnualJointConferenceoftheIEEEComputerandCommunicationsSocieties,INFOCOM97,1997[4],,.,2002,16(6):873[5]BianchiG,CampbellAT.IEEEJournalonSelectedAreasinCommunications,2000,18(2):244SimulationResearchforMANETQoSMACProtocolMAQF/MACYaoYinxiong,WangHaoxing,ChenHsingyi*(Dept.ofElectronicEngineering,ShanghaiJiaotongUniversity,Shanghai200030)(*Dept.ofElectricalEngineering,YuanZeUniversity,Taiwan)AbstractInordertoadaptMANETforciviluse,QoSprovisioningforMANETatMAClayershouldbeprovided.MAQF/MACisanewadaptiveMANETQoSsupportingMACprotocol,whichcandynamicallymeasurethevariationofresourceinrealtime,andchangethechannelaccesspolicyandtheamountofresourcecapturedbytraffic.Fromthestandpointofsimulation,thispapermainlyconcernssomekeycomponentsofMAQF/MACincludingworkprinciple,resourcetable,QoSrouting,compressionalgorithmandetc.SimulationresultsshowthatMAQF/MACissuperiortoMACA/PRintheaspectofmultileveltrafficQoSguaranteesandresourceutility.Keywords:MANET,MAC,QoS,Simulation,Resourceutility25:MANETQoSMAQF/MAC