ieee802.11pcf中的自適應輪詢機制

1、重慶大學碩士學位論文IEEE802.11PCF中的自適應輪詢機制姓名：廖勇申請學位級別：碩士專業(yè)：電路與系統(tǒng)指導教師：楊士中20070410重慶大學碩士學位論文英文摘要ABSTRACTWiththerapiddevelopmentofinformationtechnologyespeciallytheextensiveapplicationofpowerfulportablecomputers，personaldigitalassist

2、ants，aswellasmultimediaterminals，Peoplewillgreatlypromotethepersonalinformationandcommunicationstechnologyneeds，andtherelatedtechnologywillbeupdateddaybydayPeoplewerenolongersatisfiedwiththewiredcomputernetworksincommuni

3、cationbetweenfixedterminals，butexpectthemultimediaincludesdatavoiceimagesetccanbeintegratedforexpandingwirelesscommunicationsnetworkThentheportablecomputerssurfing011thewirelessnetCanbeachievednamelymobilecomputercommuni

4、cationInthebackgroundofthis，thewirelessLANeflmeintoexistsAsoneoftheimportanttechnolcl百eStobuildmobilecomputernetworks，itrepresentsthedirectionforcommunicationsnetworktechnologydevelopmentofthe21stcenturyandattractslorsof

5、attentionfromallOVertheworldAsmoderncommunicationsandcomputertechnologythestudyofwirelessLANtechnologywillbegradualimproved，andfi1rtherchangethewaypeopleworkingandrivingThenewestIEEEStd80211documentswerepublishedbyIEEEin

6、Oct1999ThecharacteristicsofMediumAccessControl(MAC)layerandPhysicallayerforWirelessLocalNetworks(WLANs)alespecifiedinthisstandardTheeffectivespectrumtechnologyphysicallayerunitsmaybeadoptedinthedesignofMACunitThestudyofc

7、ommunicationsprotocolisnoteasyincommunicationstechnologyresearchanddevelopmentItisverysignificanttostudytheIEEEStd80211whichwillmakeUSabletopossessthewirelessnetworkproductsbyourselveswithindependenceintellectualproperty

8、rightsMeanwhilewewillbeabletograspthebasicresearchmethodsandgeneralcommunicationprotocolprocessTheaccomplishedworkonthetopic”AdapativepollingschemeonIEEE80211PCF”asfoUows：(1)ThelatestachievementsaboutPCFSchedulingAlgorit

9、hmbytheexpertsabroadwerecompletelysummarizedItincludesRoundRobin，ModifiedRoundRobin，F(xiàn)irstInFirstOut，CyclicShiflPollingScheme，CyclicShiRandStationRemovalPollingSchemePriorityPolling，AgingPriorityRoundRobinSchedulingetcEac