无线通信与网络chap1

IntroductionChapter1WirelessComesofAgeGuglielmoMarconiinventedthewirelesstelegraphin1896CommunicationbyencodingalphanumericcharactersinanalogsignalSenttelegraphicsignalsacrosstheAtlanticOceanCommunicationssatelliteslaunchedin1960sAdvancesinwirelesstechnologyRadio,television,mobiletelephone,communicationsatellitesMorerecentlySatellitecommunications,wirelessnetworking,cellulartechnologyBroadbandWirelessTechnologyHigherdataratesobtainablewithbroadbandwirelesstechnologyGraphics,video,audioSharessameadvantagesofallwirelessservices:convenienceandreducedcostServicecanbedeployedfasterthanfixedserviceNocostofcableplantServiceismobile,deployedalmostanywhereLimitationsandDifficultiesofWirelessTechnologiesWirelessisconvenientandlessexpensiveLimitationsandpoliticalandtechnicaldifficultiesinhibitwirelesstechnologiesLackofanindustry-widestandardDevicelimitationsE.g.,smallLCDonamobiletelephonecanonlydisplayingafewlinesoftextE.g.,browsersofmostmobilewirelessdevicesusewirelessmarkuplanguage(WML)insteadofHTMLPartOne:BackgroundProvidespreviewandcontextforrestofbookCoversbasictopicsDataCommunicationsTCP/IPChapter2:TransmissionFundamentalsBasicoverviewoftransmissiontopicsDatacommunicationsconceptsIncludestechniquesofanaloganddigitaldatatransmissionChannelcapacityTransmissionmediaMultiplexingChapter3:CommunicationNetworksComparisonofbasiccommunicationnetworktechnologiesCircuitswitchingPacketswitchingFramerelayATMChapter4:ProtocolsandtheTCP/IPProtocolSuiteProtocolarchitectureOverviewofTCP/IPOpensystemsinterconnection(OSI)referencemodelInternetworkingPartTwo:WirelessCommunicationTechnologyUnderlyingtechnologyofwirelesstransmissionEncodingofanaloganddigitaldataforwirelesstransmissionChapter5:AntennasandPropagationPrinciplesofradioandmicrowaveAntennaperformanceWirelesstransmissionmodesFadingChapter6:SignalEncodingTechniquesWirelesstransmissionAnaloganddigitaldataAnaloganddigitalsignalsChapter7:SpreadSpectrumFrequencyhoppingDirectsequencespreadspectrumCodedivisionmultipleaccess(CDMA)Chapter8:CodingandErrorControlForwarderrorcorrection(FEC)UsingredundancyforerrordetectionAutomaticrepeatrequest(ARQ)techniquesPartThree:WirelessNetworkingExaminesmajortypesofnetworksSatellite-basednetworksCellularnetworksCordlesssystemsFixedwirelessaccessschemesUseofmobileIPandWirelessAccessProtocol(WAP)toprovideInternetandWebaccessChapter9:SatelliteCommunicationsGeostationarysatellites(GEOS)Low-earthorbitingsatellites(LEOS)Medium-earthorbitingsatellites(MEOS)CapacityallocationChapter10:CellularWirelessNetworksCellularwirelessnetworkdesignissuesFirstgenerationanalog(traditionalmobiletelephonyservice)SecondgenerationdigitalcellularnetworksTime-divisionmultipleaccess(TDMA)Code-divisionmultipleaccess(CDMA)ThirdgenerationnetworksChapter11:CordlessSystemsandWirelessLocalLoopCordlesssystemsWirelesslocalloop(WLL)Sometimescalledradiointheloop(RITL)orfixedwirelessaccess(FWA)Chapter12:MobileIPandWirelessAccessProtocolModificationstoIPprotocoltoaccommodatewirelessaccesstoInternetWirelessApplicationProtocol(WAP)ProvidesmobileusersaccesstotelephonyandinformationservicesincludingInternetandWebIncludeswirelessphones,pagersandpersonaldigitalassistants(PDAs)PartFour:WirelessLocalAreaNetworksExaminesunderlyingwirelessLANtechnologyExaminesstandardizedapproachestolocalwirelessnetworkingChapter13:WirelessLANTechnologyOverviewofLANsandwirelessLANtechnologyandapplicationsTransmissiontechniquesofwirelessLANsSpreadspectrumNarrowbandmicrowaveInfraredChapter14:IEEE802.11WirelessLANStandardWirelessLANstandardsdefinedbyIEEE802.11committeeChapter15:BluetoothBluetoothisanopenspecificationforwirelesscommunicationandnetworkingPersonalcomputersMobilephonesOtherwirelessdevicesInternetandWebResourcesWebpageforthisbookWilliamStallings.com/Wireless1e.htmlUsefulwebsites,erratasheet,figures,tables,slides,internetmailinglist,wirelesscoursesComputerScienceStudentSupportSiteWilliamStallings.com/StudentSupport.htmlNewsgroupscomp.std.wirelesscomp.dcom.*