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The intent is to not only provide firm foundation in the basic theory of digital communications, but to give an introduction to three areas that have provided ... Skiptomaincontent Books › Computers&Technology › Networking&CloudComputing IntroductiontoDigitalCommunication(2ndEdition)2ndEdition by RodgerE.Ziemer(Author)›VisitAmazon'sRodgerE.ZiemerPageFindallthebooks,readabouttheauthor,andmore.SeesearchresultsforthisauthorRodgerE.Ziemer (Author), RogerW.Peterson (Author) 4.7outof5stars 3ratings ISBN-13:978-0138964818ISBN-10:0138964815WhyisISBNimportant?ISBNThisbar-codenumberletsyouverifythatyou'regettingexactlytherightversionoreditionofabook.The13-digitand10-digitformatsbothwork.ScananISBNwithyourphoneUsetheAmazonApptoscanISBNsandcompareprices. 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FREEdeliverySaturday,June25OrfastestdeliveryWednesday,June22.Orderwithin10hrs12mins Selectdeliverylocation AddtoCart MoreBuyingChoices 1Newfrom$570.99 7Usedfrom$25.68New&Used(8)from$25.68SeeAllBuyingOptions Thisbookprovidesacomprehensiveandin-depthpracticalintroductiontodigitalcommunications,fromfundamentaltheorytostate-ofthe-artmaterial.Itincorporatesmanypracticalexamplesofdesignissues.Thebookoffersabroadperspectivethroughawiderangeofdiscussiontopics,aswellasbasicbackgroundmaterial.Itcoversawiderangeoftopics,includingdigitalmodulation;signal-spacemethods;coding;spreadspectrumcommunications;digitalcellularcommunications;andsatellitecommunicationlinkanalysis.Thebookincludesderivationsaswellastablesofspecialfunctions.ItalsoprovidesapplicationsofMATLABprogramsusefulincommunicationsystemdesign.Avaluablereferencebookforprofessionalcommunicationsengineers.ÿReadmore 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EditorialReviewsFromtheInsideFlapPrefaceThephilosophyofthisbookremainsthesameasthatofthefirstedition,inparticulartoprovideanintroductiontotheessentialsofdigitalcommunicationsbasedonsoundmathematicalunderpinningsandanchoredintheliteratureofthevarioustopicsconsidered.Afterprovidingatreatmentofthebasictheoryofdigitalmodulationandcodinginthefirsteightchapters,thethreeadditionalspecializedareasofspreadspectrum,cellular,andsatellitecommunicationsaregivenone-chapteroverviews.Theintentistonotonlyprovidefirmfoundationinthebasictheoryofdigitalcommunications,buttogiveanintroductiontothreeareasthathaveprovidedthebasisofanumberofapplicationsinrecentyearsandshowavenuesofresearchthatarecurrentlyreceivingmuchattention.Forexample,spread-spectrumcommunicationsincludesthesubareasofcodefamilieswithgoodcorrelationproperties,multiuserdetection,andultrawidebandcommunicationsforresolvingmultipathchannels.Cellularradioprovidesahostofresearchareas,suchascapacityoptimizationofmultiusercommunicationsystemsandmeansforaccommodatingmixed-ratetraffic.Satellitecommunicationshasenjoyedaresurgenceofinterestwiththeproposed(withonerealized)low-earthorbitmobilevoicecommunicationsystems,satellitenavigationalsystems,andsmallapertureantennasystemapplications.Withthisphilosophy,wefeelthatboththeneedsofthepracticingengineerinthecommunicationsindustryandthesenior/beginninggraduatestudentaremet.Theformerisprovidedwithameanstorevieworself-studyatopicofimportanceonthejob,andthelatterisprovidedbackgroundinbasictheorywithanintroductiontopossibletopicsforfurtherresearch.Virtuallyallelectricalengineeringprogramsincludeacourseonlinearsystemsinthejunioryear,andthisbookiswrittenunderthatassumption.However,sincethecontentoftheselinearsystemscoursesvariesfromprogramtoprogram,anoverviewoflinearsystemsisincludedinChapter2.Anadditionalreasonforprovidingthisinformationistosetnotationanddefinespecialsignalsusedthroughoutthebook.Anotherassumptionoftheauthorsisthatthetypicalstudenttakingacourseusingthisbookwillhavehadajunior-levelcourseonprobability.Oftensuchcoursescontainadditionaltopicsfromstatisticsandrandomprocesses.However,sincecoverageofthesetopicsvariesfromprogramtoprogram,thenecessarymaterialonrandomprocessesforthisbookisincludedinChapter2.Forthosestudentsthatmaynothavehadapriorcourseonprobability,ourrecommendationisthatonebetakenbeforeacoursetaughtusingthisbookistaken.However,forverydiligentstudentswhomaynotwishtodothis,orwhoseprobabilitycoursewastakeninthedistantpast,AppendixAofthisbookprovidesabriefoverviewofthenecessarytopicsfromprobability.ThismaterialmaybereviewedinconjunctionwithChapter1andwillnotbeneededuntilthelatterpartofChapter2,whererandomprocessesarecovered.Afteranintroductiontothegeneralfeaturesofdigitalcommunicationsystems,Chapter1includesanoverviewofchannelcharacteristicsandanintroductiontolinkpowercalculations.ThelattersubjectisreturnedtoinChapters10and11inconjunctionwithaconsiderationofcellularradioandsatellitecommunicationlinks,respectively.TheintroductionofthissubjectinChapter1providesalinkbetweenperformancerequirementsofcommunicationsystemsintermsofsignal-to-noiseratioatthereceiverinputandtherequirementsoftransmitterpowerimpliedbytheperformancedesiredandthechannelattenuationcharacteristics.Asalreadymentioned,Chapter2isareviewofsignalandsystemtheory,analogmodulation,andrandomprocesses.Inadditiontoprovidingdefinitionsofbasicsignalsandsettingnotation,averysimplesimulationofnoisethroughalinearsystem(Butterworthdigitalfilter)isillustratedbyanexample.ThissetsthecontextforsimulationofasimpledigitalcommunicationsystemillustratedbyexampleinChapter3.ThestudentisthenencouragedtodohisorherownsimulationsinseveralproblemsofChapter3.InChapter3,thesubjectofdigitaldatatransmissionisintroduced.Thereceiverstructureassumedisthatofalinearfilterfollowedbyathresholddetector.Optimizationofthereceiverfilterthroughmaximizationofpeaksignal-to-root-mean-squarenoiseratioatitsoutputleadstotheconceptoftheclassicmatchedfilterreceiver.Thedatatransmissionschemesconsideredarebinary.Althoughthechannelisinitiallyconsideredtobeofinfinitebandwidth,optimumsystemsforthestrictlybandlimitedcaseareeventuallyconsidered.Equalizationmethodsforcompensatingforintersymbolinterferenceintroducedbybandlimitinginthechannelarenextconsidered.Thechapterendswithabriefconsiderationofsignaldesignforbandlimitedchannelsandnoiseeffectinpulsecodemodulationsystems.ThepurposeofChapter4istoprovideasoundtheoreticalbasisforthedigitalmodulationsystemsintroducedinChapter3,aswellastoextendtheresultsinseveraldirections.TheapproachusedisthatofBayes'sdetectioncouchedinthelanguageofsignalspace.Thebackgroundnoiseisassumedtobeadditiveandwhite,whichallowstheuseofanyorthogonalbasisfunctionsetthatspansthesignalspace,givingaverycleargeometricpictureofthedigitalsignalreceptionprocess.AsanextensionofChapter3,Chapter4considersM-arydigitaldatatransmissionandtheexplicittreatmentofmodulationschemessuitableforpracticalchannels.TheconceptsofequivalentbiterrorprobabilityandbandwidthefficiencyintermsofbitspersecondperhertzofbandwidthareintroducedinordertoprovideabasisofcomparisonofM-arysystems.Thechapterendswithseveralexampledesignproblemsandabasicintroductiontoorthogonalfrequencydivisionmultiplexing.BuildingontheidealsystemscoveredinChapter4;Chapter5takesupseveraltopicsthatcanbeconsidereddegradationsourcesforthoseidealsystems.Synchronizationmethodsatvariouslevels(i.e.,carrier,bit,andframe)arediscussed,andthedegradationimposedbyimperfectcarriersynchronizationischaracterized.Fadingchanneleffectsarecharacterizedanddiversitytransmissionforcombatingthemisdiscussed.Thechapterendsbydiscussingenvelopeplots,eyediagrams,andphasorplotsasmeanstocharacterizecommunicationsystemperformanceandtheirgenerationbycomputersimulationisillustrated.Chapters6through8takeupthesubjectofcoding,withtheelementsofinformationtheoryandblockcodingconsideredinChapter6andtheelementsofconvolutionalcodingisconsideredinChapter7.Theoreticalfoundationsareprovided,butthemajorunderlyingobjectiveofChapters6and7isalwaysoneofsystemapplications.AllcodingtechniquesconsideredinChapters6and7arecharacterizedintermsoftheirabilitytolowerthesignal-to-noiseratiorequiredtoachieveadesiredprobabilityofbiterror(powerefficiency)andthebitspersecondthatcanbesupportedperhertzofbandwidth(bandwidthefficiency).Chapter8providesabrieftreatmentofanothererrorcontrolschemecalledautomaticrepeatrequest(ARQ),whichutilizesafeedbackchannel.Chapter9containsanoverviewofspread-spectrumcommunications.Theimportantconceptofmultiuserdetectionisconsideredwhere,whensignalsfrommultipleusersarebeingreceived,thedetectionprocesstakesintoaccounttheirstatisticalcharacteristicsandtheimprovementofdetectorperformanceoverwhatcouldbeobtainediftheother-usersignalsweretreatedasnoise.Chapter10dealswithcellularradiocommunications.Thecellularconceptisintroducedalongwiththemajordegradationsexperiencedinsuchsystemsincludingother-userinterferenceandmultipathfading.First-andsecond-generationcellularsystemsarediscussedandprovideanexcellentexampleofacasewherethemovehasbeenmadefromanalogtodigitaltransmissionforseveralreasons.Chapter11treatssatellitecommunicationsasanexamplewheredigitalcommunicationsconceptsandapplicationshavecomeintoextensiveuseovertheyears.Theconceptsareillustratedwithseveraldesignexamples.Characteristicsofseverallow-earthorbitsatellitecommunicationsystemsformobilephonecommunicationsaresummarized.Thefirsteditionofthisbookhasbeenusedsuccessfullytoteachcoursesondigitalcommunicationstoambitiousundergraduatesandfirst-yeargraduatestudentsforseveralyears.Typically,aftertheintroductionprovidedinChapter1iscovered,basicdigitalmodulationtheoryandcoding(Chapters37)arecoveredafterspendingsometimeonsignal,system,andrandomprocessreview.Theuseofcomputersimulationisemphasizedfromthestart,withtheassignmentataboutmid-semesterofacomputersimulationprojecttobeworkedonthroughoutthesemester.Weeklyproblemsetsareassignedandgraded.Anin-classclosed-bookmidtermexaminationisgiventoencouragestudentstobecomeintimatelyfamiliarwithbasicrandomprocess,modulationanddigitaldetectionprinciples(usually,thisoccursattheendofChapter3).Dependingonthescopeofthecomputerprojectandtheinitiativeshownbytheclass,afinalexaminationmayormaynotbegiven.Wewishtothankthemanypersonswhohavecontributedeitherdirectlyorindirectlytothisbook.Theseincludeourcolleaguesatvariouslocationsthroughouttheworld.WespecificallythankDavidKisakofSAICforhiscarefulreviewandconstructivecriticismofChapters6through8,NickAlexandruforhiscorrectionsofseveralexamplesinthefirstedition,JerryBrandofHarrisCorporationandJohnHaugofMotorolafortheirreadingandconstructivecriticismofChapter10.TheOfficeofNavalResearchisacknowledgedasindirectlysupportingthewritingofthisbookthroughresearchgrantstoRodgerZiemer,aswellastheNationalScienceFoundation,whichprovidedresearchanddevelopmenttimewhilehewasaprogramofficerthereduringtheproductionofthesecondedition.Wealsothankthereviewersofthebookfortheirhelpfulcommentsandsuggestions,amajorityofwhichhavebeenincorporated.Inparticular,weacknowledgetheinputofProfessorVijayK.Jain,UniversityofSouthFlorida;ProfessorPeterMathys,UniversityofColoradoatBoulder;ProfessorLaurenceB.Milstein,UniversityofCaliforniaatSanDiego;ProfessorPeytonZ.Peebles,Jr.,UniversityofFlorida;andProfessorWilliamTranter,VirginiaTechforthefirstedition.AndwewouldalsoliketoacknowledgetheinputofMohammadMaqusi,TexasTechUniversity,andRichardJ.Kozick,BucknellUniversityforthissecondedition.Anyerrorsorshortcomingsthatremainaretheresponsibilityoftheauthors.Mostimportantly,wethankourwives,SandyZiemerandAnnClark,fortheirpatienceduringthewritingofboththefirstandsecondeditionsofthebook,andthesecondauthorthankshisdaughterDianePetersonforloveandsupportduringthisproject.Thefirstauthorwishestospecificallymentionhischildren,AmyandMarkZiemer,whoapparentlypaidmoreattentiontohiswritingactivitiesthanhethoughtbotharenowpublishedauthorsthemselves!RodgerZiemerRogerPetersonJanuary17,2000Excerpt.©Reprintedbypermission.Allrightsreserved.PrefaceThephilosophyofthisbookremainsthesameasthatofthefirstedition,inparticulartoprovideanintroductiontotheessentialsofdigitalcommunicationsbasedonsoundmathematicalunderpinningsandanchoredintheliteratureofthevarioustopicsconsidered.Afterprovidingatreatmentofthebasictheoryofdigitalmodulationandcodinginthefirsteightchapters,thethreeadditionalspecializedareasofspreadspectrum,cellular,andsatellitecommunicationsaregivenone-chapteroverviews.Theintentistonotonlyprovidefirmfoundationinthebasictheoryofdigitalcommunications,buttogiveanintroductiontothreeareasthathaveprovidedthebasisofanumberofapplicationsinrecentyearsandshowavenuesofresearchthatarecurrentlyreceivingmuchattention.Forexample,spread-spectrumcommunicationsincludesthesubareasofcodefamilieswithgoodcorrelationproperties,multiuserdetection,andultrawidebandcommunicationsforresolvingmultipathchannels.Cellularradioprovidesahostofresearchareas,suchascapacityoptimizationofmultiusercommunicationsystemsandmeansforaccommodatingmixed-ratetraffic.Satellitecommunicationshasenjoyedaresurgenceofinterestwiththeproposed(withonerealized)low-earthorbitmobilevoicecommunicationsystems,satellitenavigationalsystems,andsmallapertureantennasystemapplications.Withthisphilosophy,wefeelthatboththeneedsofthepracticingengineerinthecommunicationsindustryandthesenior/beginninggraduatestudentaremet.Theformerisprovidedwithameanstorevieworself-studyatopicofimportanceonthejob,andthelatterisprovidedbackgroundinbasictheorywithanintroductiontopossibletopicsforfurtherresearch.Virtuallyallelectricalengineeringprogramsincludeacourseonlinearsystemsinthejunioryear,andthisbookiswrittenunderthatassumption.However,sincethecontentoftheselinearsystemscoursesvariesfromprogramtoprogram,anoverviewoflinearsystemsisincludedinChapter2.Anadditionalreasonforprovidingthisinformationistosetnotationanddefinespecialsignalsusedthroughoutthebook.Anotherassumptionoftheauthorsisthatthetypicalstudenttakingacourseusingthisbookwillhavehadajunior-levelcourseonprobability.Oftensuchcoursescontainadditionaltopicsfromstatisticsandrandomprocesses.However,sincecoverageofthesetopicsvariesfromprogramtoprogram,thenecessarymaterialonrandomprocessesforthisbookisincludedinChapter2.Forthosestudentsthatmaynothavehadapriorcourseonprobability,ourrecommendationisthatonebetakenbeforeacoursetaughtusingthisbookistaken.However,forverydiligentstudentswhomaynotwishtodothis,orwhoseprobabilitycoursewastakeninthedistantpast,AppendixAofthisbookprovidesabriefoverviewofthenecessarytopicsfromprobability.ThismaterialmaybereviewedinconjunctionwithChapter1andwillnotbeneededuntilthelatterpartofChapter2,whererandomprocessesarecovered.Afteranintroductiontothegeneralfeaturesofdigitalcommunicationsystems,Chapter1includesanoverviewofchannelcharacteristicsandanintroductiontolinkpowercalculations.ThelattersubjectisreturnedtoinChapters10and11inconjunctionwithaconsiderationofcellularradioandsatellitecommunicationlinks,respectively.TheintroductionofthissubjectinChapter1providesalinkbetweenperformancerequirementsofcommunicationsystemsintermsofsignal-to-noiseratioatthereceiverinputandtherequirementsoftransmitterpowerimpliedbytheperformancedesiredandthechannelattenuationcharacteristics.Asalreadymentioned,Chapter2isareviewofsignalandsystemtheory,analogmodulation,andrandomprocesses.Inadditiontoprovidingdefinitionsofbasicsignalsandsettingnotation,averysimplesimulationofnoisethroughalinearsystem(Butterworthdigitalfilter)isillustratedbyanexample.ThissetsthecontextforsimulationofasimpledigitalcommunicationsystemillustratedbyexampleinChapter3.ThestudentisthenencouragedtodohisorherownsimulationsinseveralproblemsofChapter3.InChapter3,thesubjectofdigitaldatatransmissionisintroduced.Thereceiverstructureassumedisthatofalinearfilterfollowedbyathresholddetector.Optimizationofthereceiverfilterthroughmaximizationofpeaksignal-to-root-mean-squarenoiseratioatitsoutputleadstotheconceptoftheclassicmatchedfilterreceiver.Thedatatransmissionschemesconsideredarebinary.Althoughthechannelisinitiallyconsideredtobeofinfinitebandwidth,optimumsystemsforthestrictlybandlimitedcaseareeventuallyconsidered.Equalizationmethodsforcompensatingforintersymbolinterferenceintroducedbybandlimitinginthechannelarenextconsidered.Thechapterendswithabriefconsiderationofsignaldesignforbandlimitedchannelsandnoiseeffectinpulsecodemodulationsystems.ThepurposeofChapter4istoprovideasoundtheoreticalbasisforthedigitalmodulationsystemsintroducedinChapter3,aswellastoextendtheresultsinseveraldirections.TheapproachusedisthatofBayes'sdetectioncouchedinthelanguageofsignalspace.Thebackgroundnoiseisassumedtobeadditiveandwhite,whichallowstheuseofanyorthogonalbasisfunctionsetthatspansthesignalspace,givingaverycleargeometricpictureofthedigitalsignalreceptionprocess.AsanextensionofChapter3,Chapter4considersM-arydigitaldatatransmissionandtheexplicittreatmentofmodulationschemessuitableforpracticalchannels.TheconceptsofequivalentbiterrorprobabilityandbandwidthefficiencyintermsofbitspersecondperhertzofbandwidthareintroducedinordertoprovideabasisofcomparisonofM-arysystems.Thechapterendswithseveralexampledesignproblemsandabasicintroductiontoorthogonalfrequencydivisionmultiplexing.BuildingontheidealsystemscoveredinChapter4;Chapter5takesupseveraltopicsthatcanbeconsidereddegradationsourcesforthoseidealsystems.Synchronizationmethodsatvariouslevels(i.e.,carrier,bit,andframe)arediscussed,andthedegradationimposedbyimperfectcarriersynchronizationischaracterized.Fadingchanneleffectsarecharacterizedanddiversitytransmissionforcombatingthemisdiscussed.Thechapterendsbydiscussingenvelopeplots,eyediagrams,andphasorplotsasmeanstocharacterizecommunicationsystemperformanceandtheirgenerationbycomputersimulationisillustrated.Chapters6through8takeupthesubjectofcoding,withtheelementsofinformationtheoryandblockcodingconsideredinChapter6andtheelementsofconvolutionalcodingisconsideredinChapter7.Theoreticalfoundationsareprovided,butthemajorunderlyingobjectiveofChapters6and7isalwaysoneofsystemapplications.AllcodingtechniquesconsideredinChapters6and7arecharacterizedintermsoftheirabilitytolowerthesignal-to-noiseratiorequiredtoachieveadesiredprobabilityofbiterror(powerefficiency)andthebitspersecondthatcanbesupportedperhertzofbandwidth(bandwidthefficiency).Chapter8providesabrieftreatmentofanothererrorcontrolschemecalledautomaticrepeatrequest(ARQ),whichutilizesafeedbackchannel.Chapter9containsanoverviewofspread-spectrumcommunications.Theimportantconceptofmultiuserdetectionisconsideredwhere,whensignalsfrommultipleusersarebeingreceived,thedetectionprocesstakesintoaccounttheirstatisticalcharacteristicsandtheimprovementofdetectorperformanceoverwhatcouldbeobtainediftheother-usersignalsweretreatedasnoise.Chapter10dealswithcellularradiocommunications.Thecellularconceptisintroducedalongwiththemajordegradationsexperiencedinsuchsystemsincludingother-userinterferenceandmultipathfading.First-andsecond-generationcellularsystemsarediscussedandprovideanexcellentexampleofacasewherethemovehasbeenmadefromanalogtodigitaltransmissionforseveralreasons.Chapter11treatssatellitecommunicationsasanexamplewheredigitalcommunicationsconceptsandapplicationshavecomeintoextensiveuseovertheyears.Theconceptsareillustratedwithseveraldesignexamples.Characteristicsofseverallow-earthorbitsatellitecommunicationsystemsformobilephonecommunicationsaresummarized.Thefirsteditionofthisbookhasbeenusedsuccessfullytoteachcoursesondigitalcommunicationstoambitiousundergraduatesandfirst-yeargraduatestudentsforseveralyears.Typically,aftertheintroductionprovidedinChapter1iscovered,basicdigitalmodulationtheoryandcoding(Chapters37)arecoveredafterspendingsometimeonsignal,system,andrandomprocessreview.Theuseofcomputersimulationisemphasizedfromthestart,withtheassignmentataboutmid-semesterofacomputersimulationprojecttobeworkedonthroughoutthesemester.Weeklyproblemsetsareassignedandgraded.Anin-classclosed-bookmidtermexaminationisgiventoencouragestudentstobecomeintimatelyfamiliarwithbasicrandomprocess,modulationanddigitaldetectionprinciples(usually,thisoccursattheendofChapter3).Dependingonthescopeofthecomputerprojectandtheinitiativeshownbytheclass,afinalexaminationmayormaynotbegiven.Wewishtothankthemanypersonswhohavecontributedeitherdirectlyorindirectlytothisbook.Theseincludeourcolleaguesatvariouslocationsthroughouttheworld.WespecificallythankDavidKisakofSAICforhiscarefulreviewandconstructivecriticismofChapters6through8,NickAlexandruforhiscorrectionsofseveralexamplesinthefirstedition,JerryBrandofHarrisCorporationandJohnHaugofMotorolafortheirreadingandconstructivecriticismofChapter10.TheOfficeofNavalResearchisacknowledgedasindirectlysupportingthewritingofthisbookthroughresearchgrantstoRodgerZiemer,aswellastheNationalScienceFoundation,whichprovidedresearchanddevelopmenttimewhilehewasaprogramofficerthereduringtheproductionofthesecondedition.Wealsothankthereviewersofthebookfortheirhelpfulcommentsandsuggestions,amajorityofwhichhavebeenincorporated.Inparticular,weacknowledgetheinputofProfessorVijayK.Jain,UniversityofSouthFlorida;ProfessorPeterMathys,UniversityofColoradoatBoulder;ProfessorLaurenceB.Milstein,UniversityofCaliforniaatSanDiego;ProfessorPeytonZ.Peebles,Jr.,UniversityofFlorida;andProfessorWilliamTranter,VirginiaTechforthefirstedition.AndwewouldalsoliketoacknowledgetheinputofMohammadMaqusi,TexasTechUniversity,andRichardJ.Kozick,BucknellUniversityforthissecondedition.Anyerrorsorshortcomingsthatremainaretheresponsibilityoftheauthors.Mostimportantly,wethankourwives,SandyZiemerandAnnClark,fortheirpatienceduringthewritingofboththefirstandsecondeditionsofthebook,andthesecondauthorthankshisdaughterDianePetersonforloveandsupportduringthisproject.Thefirstauthorwishestospecificallymentionhischildren,AmyandMarkZiemer,whoapparentlypaidmoreattentiontohiswritingactivitiesthanhethoughtbotharenowpublishedauthorsthemselves!RodgerZiemerRogerPetersonJanuary17,2000 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I'dliketoreadthisbookonKindle Don'thaveaKindle?GetyourKindlehere,ordownloadaFREEKindleReadingApp. Productdetails Publisher : Pearson;2ndedition(August19,2000)Language : EnglishPaperback : 928pagesISBN-10 : 0138964815ISBN-13 : 978-0138964818ItemWeight : 3.2poundsDimensions : 1.9x7x9.1inches BestSellersRank:#3,841,329inBooks(SeeTop100inBooks)#2,911inComputerNetworking(Books)#4,808inComputerNetworks,Protocols&APIs(Books)#8,855inTelecommunications&SensorsCustomerReviews: 4.7outof5stars 3ratings AbouttheauthorFollowauthorstogetnewreleaseupdates,plusimprovedrecommendations.RodgerE.ZiemerBriefcontentvisible,doubletaptoreadfullcontent.Fullcontentvisible,doubletaptoreadbriefcontent.Discovermoreoftheauthor’sbooks,seesimilarauthors,readauthorblogsandmoreReadmoreReadless Customerreviews4.7outof5stars4.7outof5 3globalratings 5star 66% 4star 34% 3star 0%(0%) 0% 2star 0%(0%) 0% 1star 0%(0%) 0% Howcustomerreviewsandratingswork CustomerReviews,includingProductStarRatingshelpcustomerstolearnmoreabouttheproductanddecidewhetheritistherightproductforthem. 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