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1、英文資料翻譯系別軟件與服務(wù)外包學(xué)院.專業(yè)通信網(wǎng)絡(luò)與設(shè)備.班級(jí)0701.學(xué)生姓名陳偉.學(xué)號(hào)100070833.指導(dǎo)教師侯海燕.2010年4月WirelessLANAbstract:ThisarticlediscussestherecentrapiddevelopmentofwirelessLANtechnology,andthroughactualprojectcases,introducedtherelatedknowledge.Inthis"networkisthecomputer"era,alongwiththecablenetworkwidely,byaneffi
2、cient,flexiblenetworking,wirelessnetworkingtechnologyfortheadvantageofalsodevelopingfast.WirelessLANisacomputernetworkandwirelesscommunicationtechnologycombinedwiththeproduct.Fromaprofessionalpointofview,wirelesslocalareanetworkusingawirelessmultipleaccesschannelisaneffectivemethodtosupp
3、ortthecommunicationbetweencomputers,andmobilecommunications,personalizationandmultimediaapplicationspossible.Inlayman'sterms,wirelesslocalareanetwork(Wirelesslocal-areanetwork,WLAN)thatisnotthesametimeusingthetraditionalcable,Ethernetortokennetworkfunctions.Computernetworktransmissionmed
4、iaoftenrelycopperorfiberopticcable,LANcableform.Butthecablenetworkwiringinsomecasesbesubjecttorestrictions:wiring,rebuildingprojectlarge;lineeasilydamaged;Networknodescannotbemoved.Especiallywhencomparedfromtheremotenodeshouldbeconnected,thelayingofdedicatedcommunicationlinewiringconstru
5、ctiondifficult,costly,time-consuming,anddemandisrapidlyexpandingnetworkcongestionhasbecomeaseriousbottleneck.WirelessLANisthesolutionoverwirednetworkstoproblems.1.thehistoryofthewirelessLANSpeakingofthehistoricaloriginsofthewirelessnetworkmaybeevenearlierthanyouimagined.Preliminaryapplic
6、ationofwirelessnetworkscanbetracedback50yearsagoduringWorldWarII,whentheU.S.Armyusingradiosignalsasdatatransmission.Theydevelopedasetofradiotransmissiontechnology,andusinghighstrengthencryption.U.S.andalliedforceshavehadextensiveuseofthetechnology.Thistechnologyhasbeeninspiredformanyscho
7、lars,in1971,theUniversityofHawaii(UniversityofHawaii)researcherscreatedthefirstpacket-basedtechnologybasedonradiocommunicationnetwork,calledALOHNETnetwork,canbeveryearlywirelesslocalareanetwork(WLAN).ThisisthefirstWLANincludessevencomputers,whichusetwo-waystartopology(bi-
