擴頻傳輸無線分組綜合接入通信系統(tǒng)的研究.pdf

1、東南大學碩士學位論文擴頻傳輸無線分組綜合接入通信系統(tǒng)的研究姓名：施鍇申請學位級別：碩士專業(yè)：通信與信息系統(tǒng)指導教師：陳曉曙2001.3.1東南大學碩士論文ABSTRACTABSTRACTWirelessAccessiSoneofthemostimportanttopiCSinthefieldofcommuncationandPacketSwitchshowesthetrendencyofswitchtechnologydevelopme

2、ntThiSthesiSmainlyfocuseson“SpreadSpectrumWirelessPacketIntegratedAccessCommunicationSystem”Itmakesuseofsometechnologies，suchasdirectsequencespreadspectrum，packetswitch，etcItsupportsvoiceandIPdataandfitsformiddleorsmalln

3、etworkAtfirst，itintroducesthetechnologybackgroundandthekeytechnologiesusedThenitdescribestechenicalfoundationtobeusedInChapter2。itillustratesthesystemstructureandprotocolStacksuchasthePhysicallayer，RadiodataLinkControlsu

4、blayer(RLC)，MediaAccessControlsublayer(MAC)andcorrespondingsoftwarestructuresTheresearchworkupontheselayersareexpressedindetailS，includingtheRFcurcitofbasestation，flowchartofvxDcontrolprocedure，thesoftwareflowofISAcard，t

5、heresearchofbasebandhardwareofvehiclemobilestationInChapter3，itpresentstheanalysiSofsystemDLCefficiency，thesystemcapacity，systemsecurity，andcomparationofsystemDECTandPHSAISOitincludesthesystemtestingreportsandsomerecorme

6、ndationsfortheimprovementofsystemdisadvantageChapter4iSapreviewofthefuturesystemThelargevolumnofCDMAsystempresentsanobjectforthecurrentsystemButcurrentsystemhasitsownadvantageandcharacterHowtoembodythecodemultiaccessdivi

7、sionandmultimicroareastechnologyiSabigchallengeforthesystemThechapterprovidessomeillustrationsinthiSfieldanditalsedescribesthefutureofconnectionwithPSTNthroughVoIPKeywords：WirelessAccess，SpreadSpectrum，STDMA(StatisticsTi