基于分布式天線的無線移動通信系統(tǒng)下行信道容量分析.pdf

1、蘭州大學(xué)碩士學(xué)位論文基于分布式天線的無線移動通信系統(tǒng)下行信道容量分析姓名：王健申請學(xué)位級別：碩士專業(yè)：通信與信息系統(tǒng)指導(dǎo)教師：呂振肅20050501蘭州大學(xué)顫fj學(xué)位論文AbstractBasedon“modemwirelessmobilecommunicationtheoryandkeytechnologybasedondistributedantennasystem”(advancedbycivilresearchersindepe

2、ndently)，thispaperfirstprovedthelowerlimitofdownlink—channelcapacityandthespectrumefficiency。TheconclusionofthispaperisveryimportantforthelaterresearchOilthisdomain。Thetheorysystem(modemwirelessmobilecommunicationtheorya

3、ndkeytechnologybasedondistributedantennasystem)isallessentialprogressrelativetothetraditionalcellularsystem。Thistheoryfirstputforwardthenovelfourlayerphysicalconfiguration，whichincludealayerofthedistributedantennasystem。

4、Besideabove，thistheoryfirstputforwardmanynewconceptsincludedummycell、dummybasestationanddummytunnelere。Themobileterminalisthecenterofthedummycell。andthelaterchangeswiththeformermovesEverydummycellmayhasmorethanoneantenna

5、terminal。Providedbythemul廿pleantennatheory，channelcapacityincreaseslinearlywiththesmallerofsendingportandthereceivingport。Thus，whenthereismorethanoneantennaterminalonbothendofthechannel，thechannelcapac時willgainevidentimp

6、rovement。AndthisisthetheoryfoundationofthispaperThisarticlefirstanalysistheamourltoftheantennaelementofthefuturemobileterminalthenresearchthetopologyconfigurationofthedistributedantennasystemBytheanalysisandcompareofthe“

7、CIR”(cartiertointerferenceratio)0ntheedgeofthedummycellinthreedifferenttopologyconfigurationsystemwegainedthedownlinkchannelcapacityandthespectrumefficiency。Comparedwiththecorrespondingparametersofthe2硼andthe3rdgeneratio