2023年全國碩士研究生考試考研英語一試題真題(含答案詳解+作文范文)_第1頁
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1、東南大學(xué)碩士學(xué)位論文IEEE802.11網(wǎng)絡(luò)多信道MAC協(xié)議的研究和實(shí)現(xiàn)姓名:鄭傳奇申請學(xué)位級(jí)別:碩士專業(yè):信息與通信工程;通信與信息系統(tǒng)指導(dǎo)教師:徐平平20110305ABSTRACTABSTRACTAsnlecominuousgrowmofIntemetaccessiTlgrequirementS,accessingmethodsthroughWiFihotspotshavebecOmeveD,populari11recemyear

2、sHowen,er’limitedbandwidtll豫sou曠cesofmewirelessmediL蛐poseseriousobstaclest0nledeploymentofhi曲一pe—0咖ance印plicationSillwireIessnetworl(S1nhisproblemh夠beentackledbyob詛ininge銜ciemuSageofbarIdwidthresourcesrheIEEE8021lstandar

3、ddividesmewirelessspec仇瑚iIlt0di毹relltspecn鋤b繃dscaIled“ch鋤els”T1lisaJlowssimultaneouscommullicatioIlS,whichmayincreaSe吐leoVemllcapa_bilityofthenetworkbecauseaccesspoiIltScaIlaVoidinter|套rencebyoperatingondi毹rentch鋤elssimu

4、ltaneouSlyHoweVer,Adhocne吶orIcsc鋤otutilize饑quencydiVersit),becauseaHnodesiIl雛Adhocne似。訂(ge鵬raJly慨et0acommonch鋤e1Tllus,c印ac時(shí)ofAdhocne鉚orksisgenerallyfeS仃ictedt0theballdwidthofasiIl酉echannelMultichanneIMACprotocolsha_verec

5、entlyobtajnedcoIlsiderablealtentjoni|1wirelessne儲(chǔ)orkingresearchSolutionSeitllerb笛edonroutinglayer0rMAClayerhaVebeenproposedS0lutioIlsatt11eroutinglayergene列l(wèi)yrequ№muItiplemdiointerfaceSpernodeandpe雨珊eitherstaticOrd”鋤icch

6、a衄elassi舒l芏IlentsSuchtlatradiointerf砬esofnei曲boringnodeshaveoneormorecommonch鋤elsontheonlerhand,so】utionsattlleMAClayergeneraJlydonotrequ的multiple腳iointeffaces111ispaperfocuSesontheimplementation鋤dexperimentaleValuationo

7、fmul吐ch砌elsolutiollsattheMACIayerThispaperfirStlyinVeStigalesmanydi毹remmulti—challnelMACs01utiollSmrecentyearS,aIldgiVesmeanalysisresultsofthemThell’廿leIEEE80211wirelessnetworkelementS鋤drelatedconceptsaredescribedSecondl

8、y,themultich鋤elMACschemefor80211Ad_hocn郵vorlcsisproposed11ledesi朗goalsf0rourschemearedefined,i11cludingthemultichallrlelhidden咖inalproblem,thech枷1elswitchingdelayproblem,e伍ectiVechamlelloadbal鋤ce鋤dbroadcast廳鋤e仃ansmtingpr

9、oblemThe瑪baSed0nMMACsolution,thjspaperproposes鋤improvedsinglehopmult沁h(yuǎn)annelMACprotocol,whichiscalledSMMACForonetlli嗨SMMACsuggeStsasimplified柚de腩ctiVech鋤elconsultation鋤dalIocationmech鋤ismFurthe珊ore,synctlronizalionmethodb

10、aLsedSoftMACisaddressedtomaketllenet、ⅣorkoperateproperlyThenamultichanneIMACdirectlilll(s酏upf;”8021lin觸咖renet、^,orl(sispropose正ThispaperfirstlypoimsOutmatmeexistingdirectliIll【setupschememustneedtheassistall_toft11eacces

11、spoIlit;Secondlyalthougllmedirect1inlcsetupofe虹stingsoIutiollsdoiIlcreasetllenetvvorkthroughputt0somee疵ntwhiIeattIles鋤etimenledirectliI出nodesareStillinthes鋤echannelwithA只Thispap盯proposesthatdi仃erentdirectlinlcnodesc鋤0per

12、ateatdi仃erentphysicalch鋤elst0觚eriIIlpmvemenetworkthroughputFinall弘thepaper西Vestheimplementationdetailofourproposeschemes,鋤dexperim鯽瞳Saretakentoevaluatemeperf0咖鋤ceof廿lesenewsolutionAsMAC1ayerprotocolisimplementedint11eope

13、ratingsystem’sne斜orkdeVice捌Vers,themuItich鋤elMACprotocolisinte寥atedaSanoptional凳afurefor舭剛inkopensourcen咖ork蹦vercodeFortheu11i印。協(xié)1echallIlelswitchdelayoftheo昏thesheIfNIC,aso丘MACsyncronizationsolutionise)幣loitedSomeotller

14、featuresareaIsoimplmentedforproperlyaddressingtlemultichannelM魄C‰ctionTheexpemnentresultsshowthatnleproposedmultich鋤elschemesdooutpe面肌nleoriginal刪強(qiáng)8021lprotocols【Keywords】皿汜8021l,Muni劬a11nelMAC,鰣VerdeVelopmem,pe怕加鋤ceeVaI

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