无线通信原理(双语)第一讲考试必备

2019/12/291WirelessCommunicationsPrinciples（bilingualcourse）Lecture1:[e-mail]2019/12/292CourseInformation•32classhoursinall•Content•Objectiveofthecourse•Assumedknowledge:Someknowledgeaboutcommunicationtheoryandprobability.•Completionmode:Examandexercises.AllexamshaveEnglishquestions.•Evaluationofthecourse:Exam(worth70-80%)+Exercises(worth30-20%)•Atleast5exercisesand/orhomeworksmustbesubmittedtoqualifyforthiscourse.Referencebooks:1)TheodoreS.Rappaport.WirelessCommunicationsPrinciplesandPractice(2ndEdition).电子工业出版社，2004年版2)TheodoreS.Rappaport著，周文安等译.无线通信原理与应用.电子工业出版社，2006年版3)张业荣，竺南直，陈勇．蜂窝移动通信网络规划与优化．北京:电子工业出版社，20034)酷哥尔.实战无线通信应知应会——新手入门，老手温故.北京：人民邮电出版社，2010CourseInformation2019/12/294SixMaincontentsinthecoursewithin32hours1）IntroductiontoWirelessCommunications(ch.1,ch.2,selectedch11)2）TheCellularConcept:SystemDesignFundamentals(ch.3)3）MobileRadioPropagation:Large-ScalePathLoss(ch.4)4）MobileRadioPropagation:Small-ScaleFadingandMultipath(ch.5)5）MultipleAccessTechniquesforWirelessCommunications(ch.9)6）WirelessNetworking(ch.10,selected)2019/12/2952019/12/295SixMaincontentsinthecoursewithin32hours1）IntroductiontoWirelessCommunications(ch.1,ch.2,selectedch11)知识点：FrequencyRangeinCellularNetwork，WirelessCommunicationSystemDefinitions，theGenerationofCellularNetworks,ChannelCapacity，signaltonoiseratio(SNR),receiversensitivity，EffectsofWirelessChannels,SomeFeaturesofWirelessChannels,relatedabbreviation(缩略词).2019/12/296SixMaincontentsinthecoursewithin32hours2）TheCellularConcept:SystemDesignFundamentals(ch.3)知识点：frequencyreuse,handoff,interferenceandsystemcapacity,sectorization,cellsplitting,spectralefficiency,trunkingandgradeofservice3）MobileRadioPropagation:Large-ScalePathLoss(ch.4)知识点：Introductiontoradiopropagation:large-andsmall-scaleeffects,multipath,pathloss,log-normalshadowing,empiricalpathlossmodels：2019/12/2972019/12/2972019/12/297SixMaincontentsinthecoursewithin32hours4）MobileRadioPropagation:Small-ScaleFadingandMultipath(ch.5)知识点：Small-Scalefading,timedelayspread,DopplerFrequencyShift,andDopplerFrequencySpread,ParametersofMobileMultipathChannels5）MultipleAccessTechniquesforWirelessCommunications(ch.9)知识点：Multipleaccesstechniques:FDMA,TDMA,CDMA,ALOHA,SlottedALOHA,CSMA2019/12/2982019/12/2982019/12/2982019/12/298SixMaincontentsinthecoursewithin32hours6）WirelessNetworking(ch.10)—知识点：ConvergenceofwirelessandInternet:Broadbandcommunications，the4GTechnology,ThebasicnetworkarchitectureoftheLTEsystem,Thephysicallayertransmissiontechniquesof4Gstandards(MIMO,OFDM)2019/12/299Wirelesscommunication:thetransferofinformationoveradistancewithouttheuseofelectricalconductorsorwires.WirelessCommunicationreliesonradiosignals,includingx-rays,ultravioletlight,thevisiblespectrum,infrared,microwaves,andradiowaves.Theequationrelatedtothespeedoflight：Thespeedoflight;carrierfrequency;wavelength;CfCf1.1AdefinitionofwirelesscommunicationCellularNetworkBasics:FrequencyRange2019/12/2911Cellphonesoperateinthisfrequencyrange,UHF=UltraHighFrequency(generallynear2GHz)CellularNetworkBasics:FrequencyRange2019/12/2912GeneralResearchAreas:CellularSystems(WirelessWideAreaNetworksorWWANs)SatelliteSystems(skip)WirelessLocalAreaNetworks(WLANs)WirelessMetropolitanAreaNetworks(WMANs)WirelessPersonalAreaNetworks(WPANs)1.2CurrentWirelessSystems2019/12/2913Classificationofwirelessnetworks（ReferredtoKaustubhPhases,UPPSALAUni.）2019/12/2914EmergingResearchAreasandTechniquesEmergingAreas•WirelessSensorNetworks•3.9G(LTE),4G(LTE-a),,etalKeytechniquesin4Glike•OFDM,andMulti-carrier•MIMO(Multi-InputMulti-Output)•CognitiveandSoftwareDefinedRadio,IEEE802.22(proposed),etalCoverage(range)Area,…2019/12/2915WirelessCommunicationsSystemDefinitions(pp:10,Table1.4)•BaseStation•Controlchannel:vitalforinitiating,re-questing,orpagingacall•Forwardchannel:fromBStothemobile(alsoSubscriber)•Reversechannel:fromthemobiletoBS•Half-duplexsystemsallowingtwo-waycommunicationbyusingthesameradiochannel•Full-duplexsystemsallowingsimultaneoustwo-waycommunication.•Handoff•Mobilestation•MSC:MobileSwitchingCenter•Page,Roamer•Subscriber,Transceiver•Simplexsystemandetal.•FDDTDD2019/12/2916ThebigbreakthroughcamewhenAT&TLabsresearchersdividedwirelesscommunicationsintoaseriesofcells.HighcapacitywithlimitedradiospectrumGoal:IncreasecapacitywhileminimizinginterferenceKey:FrequencyReuse(uselowerpowertransmitterspercellandshrinkcellsize,sothatfrequenciescanbereusedmoreoften)TheCellularConcept2019/12/2917WWANscoversacountry;typicallyinterconnectingseveralWMANsandprovidinganywhere,anytimeaccessItisusefultothinkofcellularNetwork/telephonyintermsofgenerations:􀂃1G:Analogcellulartelephony;2G:Digitalcellulartelephony;3G:High-speeddigitalcellulartelephony(includingvideotelephony);4G…Firstgeneration(1G)ofcellularNetworks•Analogcellularsystems(FM)•Onlycarryvoicetraffic•LesssecureandpronetointerferencewhensignalisweakIncludestandardssuchas:AMPS30KHzFMFDMA1.3Mobilecommunicationnetworks2019/12/2918The2ndgenerationofmobiletechnologyOr2GCellularNetworksDigitalc