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MobilityMobilitysupportThismanualisintendedforembeddedsystemsengineersandsupportprofessionalswhoarenotfamiliarwithwirelessnetworkingfrom atheoreticalorimplementationpointofview.WiFiOverview.MeshandAdhocNetworksIntroductiontoWirelessNetworksWirelessDataNetworksEachtype ofwirelessdatanetworkoperatesonaspecificsetofradiofre-quenciesThefamilyofradioprotocolsarecommonlyreferredtoasWiFiWiMaXOverview WirelessLANs(WiFi)standardsThischapteraddressesthebasicissuesofincorporatingThisdocumentcoversthebasicsofhowwirelesstechnologyworks, andhowitisusedtocreatenetworksForexample,mostWi-FinetworksoperateinaspecialbandofradiofrequenciesaroundGHzthathavebeenreservedin mostpartsoftheworldforunlicensedpoint-to-pointspreadspectrumradioThereaderisintroducedtotheconceptofradiofrequencypropagationandhowit affectswirelessnetworks,aswellastheFCCregulationsthatgoverntheiruseofthespectrum,andCourseOutlineStandardsandvariantsFrequency, modulation.WirelessNetworks.ReadingsRappaport,WirelessCommunications:PrinciplesandTseandViswanath:FundamentalsofWireless CommunicationsPoint-to-PointCommunication:Detection,DiversityandChannelUncertaintyDetectionina©CiscoSystems,Inc.Allrightsreserved.Basic elementsDifferencefromwiredVoiceandQoSsupportWirelesstechnologyisusedinmanytypesofcommunicationbsupportsuptoMbpsusingtheGHz unlicensedbandaseriesofpodcastsdiscussingthefundamentalsofwirelessLANnetworkingThisisSMBUFSMBUniversity:SellingCiscoSMBFoundation SolutionsNetworkingFundamentalsWelcometotheWiFiforbeginnerspodcastThecomponents,organization,andoperationofWi-Finetworkswillbe presentedWi-Fi™networksaredescribed,aswellashowthestandardisevolvingtosupplyhigherdataratesandbetterqualityofserviceRFBasicsasupports uptoMbpsusingtheGHzunlicensedbandsWeuseWi-FiDirectessentiallyembedsasoftwareaccesspoint,or"softAP",intoanydevicethatwishestosupport Direct.Ineachepisode,we’lltakealookatadifferentaspectofWiFitobuildyourunderstandingandknowledgeofwirelessLANnetworksWirelessnetworking protocolsRequiressupportforWi-FiProtectedSetupwithitspushtechnologiesBasicelementsgsupportsuptoMbpsusingtheGHzunlicensedband OVERVIEWWiFiOverview–Basicelements–StandardsandvariantsWiMaXOverviewWirelessTechnologyLandscapeBluetoothb{a,b}TurboaIndoor–m understandingoftheissuesofusingWLANtechnologiestoensuretheinstallationofareliableandsecurenetworkWhilethevariousWi-Fivariantsthathave emergedfromtheoriginalstandardhavegrabbedmostoftheheadlinesinthelastade,otherwireless1)basicchannelmodels)factorsthatdetermines throughput/biterrorrateinwirelesscommunicationMediumaccesscontrol