CDMA_RF_System_Engineering

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1、CDMARFSystemEngineeringCDMARFSystemEngineeringSamuelC.YangArtechHouseBoston•LondonLibraryofCongressCataloging-in-PublicationDataYang,SamuelC.CDMARFsystemengineering/SamuelC.Yangp.cm.—(ArtechHousemobilecommunicationslibrary)Includesbibliographicalreferencesandindex.ISBN0-89006-991-

2、3(alk.paper)1.Wirelesscommunicationsystems.2.Codedivisionmultipleaccess.3.Personalcommunicationservicesystems.I.Title.II.Series.TK5103.2.Y361998621.3845—dc2198-10451CIPBritishLibraryCataloguinginPublicationDataYang,SamuelC.CDMARFsystemengineering—(ArtechHousemobilecommunicationsli

3、brary)1.CodedivisionmultipleaccessI.Title621.3’845ISBN0-89006-991-3CoverdesignbyNinaY.Hsiao©1998ARTECHHOUSE,INC.685CantonStreetNorwood,MA02062Allrightsreserved.PrintedandboundintheUnitedStatesofAmerica.Nopartofthisbookmaybereproducedorutilizedinanyformorbyanymeans,electronicormech

4、anical,includingphotocopying,recording,orbyanyinformationstorageandretrievalsystem,withoutpermis-sioninwritingfromthepublisher.Alltermsmentionedinthisbookthatareknowntobetrademarksorservicemarkshavebeenappropriatelycapitalized.ArtechHousecannotattesttotheaccuracyofthisinformation.

5、Useofaterminthisbookshouldnotberegardedasaffectingthevalidityofanytrademarkorservicemark.InternationalStandardBookNumber:0-89006-991-3LibraryofCongressCatalogCardNumber:98-1045110987654321TomylovingparentsJohnandHannah,mycaringsistersEstherandNina,andmypreciouswifeJennyContentsPre

6、facexvAcknowledgmentsxix1Introduction11.1Motivation11.2MultipleAccessUsingSpreadSpectrum21.3ApplicationsofDS-SSinMobileCommunication92RadioPropagation132.1LinkAnalysis132.2PropagationLoss142.2.1Free-SpaceModel152.2.2LeeModel152.2.3HataModel162.2.4Observations172.3Shadowing192.4Mul

7、tipathRayleighFading192.5MultipathDelaySpread23viiviiiCDMARFSystemEngineering3FundamentalsofDigitalRFCommunication293.1Introduction293.2SystemComponents313.3SourceCoding323.3.1CharacteristicsofHumanSpeech333.3.2Vocoders343.4ChannelCoding363.4.1LinearBlockCodes373.4.2ConvolutionalC

8、odes413.4.3Interleaving433.5Multi