Ad hoc network

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1、WimLiuBMIthesisJuly2003WirelessCommunicationsFreeUniversityFacultyofSciencesDivisionofMathematicsandComputerScienceDeBoelelaan1081a1081HVAmsterdam43WimLiuBMIthesisJuly2003WirelessCommunicationsFreeUniversityFacultyofSciencesDivisionofMathematicsandComputerScienceDeBoelelaan108

2、1a1081HVAmsterdam43ContentsPreface4Introduction51AnOverviewofWirelessTechnologiesandCellularSystems7Introduction71.1Mobiletelephony71.1.1GSM–GlobalSystemforMobileCommunications71.1.2GPRS–GeneralPacketRadioService91.1.3UMTS-UniversalMobileTelecommunicationsSystem101.2Comparison

3、GSM/GPRS/UMTS121.2.1GSMprotocolstack121.2.2GPRSprotocolstack131.2.3UMTSprotocolstack141.3Wirelessnetwork151.3.1Wirelessadhocnetwork161.3.2Bluetooth181.3.3WirelessLocalAreaNetwork(WLAN)191.3.4WirelessATM201.4Conclusion212CostofBeingWireless23Introduction232.1Overviewofmobileope

4、rators232.1.1KPN-Mobile232.1.2Vodafone232.1.3T-Mobile232.1.4Orange242.1.5O2242.2Servicesoffered242.3Economicvalue252.3.1Costofhavingamobilephone252.3.2CostofhavingawirelessLAN262.3.3Publicwirelessaccesspoint262.4Conclusion273BasicsofCellularSystems29Introduction293.1Hexagonstr

5、ucture293.2Co-channelinterference313.3Conclusion334Conclusions35AppendixA37ListofAbbreviations39References4243PrefaceDuringthelastyearofthestudyBusinessMathematicsandComputerScience,thestudentperformsaliteratureresearch.Thegoalistoperformaliteraturestudyinthesefields.Thisstudy

6、canbeonanysubject.Thissubjectattractedmebecausewirelessisahoteventnowadays.AndIaminterestedinwhatkindofwirelesstechnologyisoffered.Luckily,IknowfromanearlierassignmentthatProf.Dr.RobvanderMei,isanexpertinthisfield.SoIwasgladthathegotanassignmentforme.But,duetohisbusyschedule,h

7、ehadnotimetoguideme.Inthisreport,Iwilltrytogiveanoverviewofsomeofthewirelesstechnologiesoffered.Thereportincludesfourchapters.Inthefirstchapter,wemakeadistinctionbetweenmobiletelephonyandwirelesscomputing.FormobiletelephonytheGSM,GPRSandUMTSstandardsarediscussed.Andforthewirel

8、esscomputing,WLANandWATMwillbediscussed.Thechapterincludesaco