基于ieee802.16的mac層性能分析及其調度算法研究

1、重慶郵電大學碩士學位論文基于IEEE802.16的MAC層性能分析及其調度算法研究姓名：徐世龍申請學位級別：碩士專業(yè)：通信與信息系統(tǒng)指導教師：楊濟安20080417重慶郵電大學碩士論文ABSTRACTABSTI認CTBWA(BroadbandWirelessAccess)isattractedmoreandmoreattentionasoneofthemostpromisingtechnologyinthedevelopmentofne

2、xtgenerationnetworksTheWiMAXbasedonthestandardofIEEE80216isoneoftheBWAtechnologies，whichaimsatWMAN(WirelessMetropolitanAccessNetwork)Itsnetworkcallprovidelligh—speedwirelessconnectionfacingtheIntemet，butalsohassometechni

3、caladvantagesForexample，itcantransmitfartheraccessmorequicklyandimplementextensivemultimediaserviceSoitmakesarapidprogressinrecentyearsTheresourceoffrequencyandbandwidthispreciousandvaluabletowirelesscommunicationsSo，iti

4、ssignificativetohowtoimprovetheratesofusingbandwidthandutilizefrequencyefficientlyAnditalsocansupplygoodservicesforusersThepapermainlydiscussestheperformance，suchasoriented—connectiontransmissionmechanismandserviceflowma

5、nagementmechanism，oftheMAClayerinstandardofIEEE80216Andthen，itstudiesonwirelesspacketschedulingalgorithms，whicharenotdefinedindetailintheIEEE80216standard，combinedwithQoSmechanismaccordingtohowtoefficientlyscheduleservic

6、eflowstheyhavedifferentPRIdefinedinMAClayerandsufficientlyutilizefrequencyAfteranalyzingandsummarizingpreviousalgorithms，itputsforwardtotheimprovedwirelesspacketschedulingalgorithmandvalidatesitsadvancedperformanceinWiMA

7、XsystembysimulationexperimentInthispapertheoryanalysis，numericaldeductionandsimulationsarethecrucialresearchmethodsThepaperaddressesthatthewirelesspacketschedulingalgorithmsarepivotaltothemechanismofQoSAndthenitsortsande

8、valuatespreviousschedulingalgorithmsAfterthat，itputforwardtoanewMulti—TierPacketSchedulingAlgorithmbasedonPQ，WFQandRRalgorithms，whichadaptstoscheduleandmanagethedownlinkofMAClayerofIEEE80216，inallusiontoinsufficiencyands

9、hortageofpreviousalgorithmslike‘‘starvation’’phenominaonlyschedulingsimplexserviceandtheircomplexityTheMTSAalgorithmhasagoodbanlanceinvalidityequityandcomplexityAndthesimulationresultsshowthattheimprovedMTSAcnhancesmuchb