ieee802.16中上行帶寬調度算法研究

1、重慶大學碩士學位論文IEEE802.16中上行帶寬調度算法研究姓名：段曉飛申請學位級別：碩士專業(yè)：通信與信息系統(tǒng)指導教師：吳玉成201004重慶大學碩士學位論文英文摘要IIABSTRACTWiththedevelopmentofbroadbwirelesscommunicationtechnologymemeapplicationsofthemultimediaservicesbroadbwirelessaccesstechnology

2、shouldhavetheabilitytoguaranteethequalityofservices(QoS)requiredbyusers.IndertomeettheapplicationrequirementsofbroadbwirelessaccessinthefutureIEEEganizationhasproposedaseriesof802.16stards.InIEEE802.16stardsthetechnology

3、adoptedbyphysicallayerthemechanismofMACaredefineddetailedly.TosuppttheQoSservicesaredividedintodifferentschedulingtypesaccdingtotheirQoSactersvariousserviceconnectionsareassociatedwithdifferentQoSparameters.Furthermethes

4、chedulingalgithmfunsolicitedgrantservice(UGS)isdefinedbutthestarddontgiveexplanationfschedulingstructuresconcreteschedulingalgithmsftheothertypesofservices.Therefestudyingonbwidthschedulingstructuresalgithmsof802.16syste

5、mhasextremelyvitalsignificance.Theproposedschedulingarchitecturesalgithmsarestudiedanalyzedindepthinthethesis.MostalgithmsarejustfocusontheaspectofguaranteeingtheQoSofservicesbutnotgivingconsiderationstotheschedulingfair

6、nessofsystem.ThusanovelbwidthschedulingalgithmbasedonpreallocationmechanismisproposedtoprovideguaranteeftheQoSofservicestoresolvetheproblemofservicingunfairintheschedulingprocess.Tomakesuretherequestofdatarateofhighpriit

7、yservicesthisalgithmwillpreallocatesomebwidthresourcefthemfirstly.Thenftherestofbwidththerealtimepollingservicesnonrealtimepollingservicesbestefftservicesareallowedtosharethroughthechangedpriitydeficitqueuealgithm.Thesch

8、edulingwillnotbestoppeduntiltheusablebwidthsarezeroallserviceflowshavegotrequiredbwidths.IndertorealizethatuplinkbwidthscouldbeusedfairefficientlyamongvariousserviceconnectionswhichisbelongtodifferentSSsamodelofbwidthsch

9、edulingbasedonGrantPerSubscriberStation(GPSS)modeisestablished.Inthismodeltheweightmaxminfairalgithmisintroducedtobasestationthenovelbwidthschedulingalgithmbasedonpreallocationmechanismisusedbysubscriberstations.Becausei