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1、北京郵電大學(xué)碩士學(xué)位論文TDD智能天線系統(tǒng)的動(dòng)態(tài)信道分配性能分析（英）姓名：BANKOLE,JuliusAdeniyi申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：通信與信息系統(tǒng)指導(dǎo)教師：楊容文2002.10.1行f√孑zf．?／吖9p鈕知乞天{．《駕t次脅乞力各／j轟趕勿雪乙k蛹乏場(chǎng)彳圩(丟)瓷健5刁：煎絲T—D—Dpc臼Fc月——一一!一tH釤至硌乏同PerformanceAnalysisofDynamicChannelAllocationinTDDsystemswi髓lSmartAntennaABSTRACTThedemandfor
2、cellularcommunicationsservicesisincreasingrapidly．AttheendofJune2001．thenulnbetofcdlu撕subscribersworldwideexceeded800miIlion．Mucbeffortisbeingdevotedtothedesignoftechniquestosupportalargenumberofusersin$limitedradiofrequencyband．Oneapproachistoemployamoreeffici
3、entchannelallocationscheme，The蠡r嚷andsecondgeneradoucellularsystemsmainlyprovidevoiceservices．Therefore，packetswitchingtechnologywillbeimplementedinthefuturecellularnetworkinordertosupporttheburstytrefilesources．Incellularsystems，capacityimprovementcanbeachieved
4、byreducingtheco—channelinterference．Severaltechniqueshavebeenproposedinliteratureformitigatingco—channelinterference，suchasadaptiveantennasandpowercontr01．Also，byallocatingtransmitterpowerandcommunicationchannelsefficiently(淄ourceallocation)，ovcrallco-channeljn
5、terfefencecanbemain鋤nedbelowa如sired嗍imumtolerableleeel，whilemaximizingthecarriedtrafficofthesystem，l致thisresearchproject，theperformanceanalysisofaTDDcellularsystemwithsmartantennaintermsofthenumberofsatisfiedlasers，voicequality8ndsystemcapacityusingthedifferent
6、DynamicChannelAllocation(DCA)andFixedChannelAllocation幫CA)schemesareevaluated．Th。dynamiechannelallocationatgorithtr,sproposedherea∞basedonCostFunctionconcept，Iathisthesis。wecard聰outanextensivesimulationanalysisofacellularnetworkaimingtoinvestigatethecomplexinte
7、rrelationshipbetweenpowercontrol，channelallocationandsmartantennas．ThekeyalgorithmsinvestigatedafetheInterference-based，Pathlnss-basedandpriority-basedschemes．Performancecomparisoniscarriedoutbycomputersimulation．Fromthesimulationrcsulisobmined’wededucmdthatinc
8、reasedtrafficcapacitycanbeachievedwithournewDCAalgorithmsincomparisonwithFCA．Theseinvestigationsareconductedandanalyzedforlowspeeduser一3km／h—forbothspeechandpacketservices．D
