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研究生:許修銘
研究生(外文):Hsu, Hsiuming
論文名稱:階層式毫微微蜂巢介接MIMO技術於室內衰落通道之研究
論文名稱(外文):The Adaptation MIMO in Tiered Femtocell over Indoor Fading Channel
指導教授:陳雍宗陳雍宗引用關係
口試委員:胡永柟林祝興
口試日期:2012-07-10
學位類別:碩士
校院名稱:大葉大學
系所名稱:電機工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:42
中文關鍵詞:相關性前置編碼衰落參數MIMO-femtocell
外文關鍵詞:correlationprecodingfading parameterMIMO-femtocell
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在本論文中,研究毫微微蜂巢(femtocell)部署於多輸入多輸出(multiple-input multiple-output, MIMO)系統所引起的通道相關因素,也就是多輸入多輸出毫微微蜂巢(MIMO-femtocell)系統。無線通訊技術已知,通道相關性的現象肯定會降低無線通訊的整體性能。此外,我們主張MIMO-femtocell部署的覆蓋區域將下降的原因,是通道相關性發生在傳輸通道裡。本論文中利用一些推導到的解析公式,進行對存在於MIMO-femtocell系統中之通道相關現象進行討論。從結論清楚的顯示,當更深的相關性發生和應用較小的SNR值時,斷話率會變得更大,系統性能變得較差。為了克服通道相關的效應,前置編碼(precoding)之演算法亦於文中進行探討;最後,本論文顯示在Nakagami-m通道環境中,衰落參數(fading parameter)仍然是支配MIMO-femtocell系統效能之主要因數。
關鍵字:相關性,MIMO-femtocell,前置編碼,衰落參數

The channel correlation of MIMO (multiple-input multiple-output) system tiered with femtocellular network, namely MIMO-FT (MIMO-femtocell) system, is investigated in this thesis. It is known that channel correlation phenomenon definitely degrades the overall system performance of a wireless communication. Moreover, we claim that the coverage area of a MIMO-FT deployment will be down in size by the reason of channel correlation occurs in propagation channel. Some derived analytical closed forms are utilized to discuss the phenomenon of channel correlation exist in MIMO-FT system. It is significantly shown from the numerical results, the outage probability and the system performance become degradation when both correlation and SNR are deeper and maller, respectively. An algorithm with precoding is also explored for the purpose of mitigating the effect of channel correlation. Finally, the results from the thesis show that the fading parameters of Nakagami-m fading model still dominate the system performance of the MIMO-femtocell system.
Key-words:correlation, MIMO-femtocell, precoding, fading parameter

封面內頁
簽名頁
授權書.........................iii
中文摘要........................iv
英文摘要 ........................v
誌謝..........................vi
目錄..........................vii
圖目錄.........................ix
表目錄 .........................x

第一章 緒論
1.1 研究目的與動機 ...............1
1.2 研究背景 ..................4
1.3 論文內容綱要 ................6
第二章 毫微微蜂巢技術簡介
2.1 毫微微蜂巢技術概述............. 7
2.2 毫微微蜂巢科技觀點.............11
2.3 毫微微蜂巢商業觀點.............13
2.4 容量和覆蓋率分析..............15
第三章 綜觀MIMO技術與Femtocell系統之介接
3.1 MIMO系統之技術概念 ............18
3.2 MIMO技術結合Femtocell系統之背景分析....20
3.3毫微微蜂巢之遠景 ..............22
3.4系統分析和通道環境 .............24
第四章 MIMO-Femtocell系統之整體介紹與分析
4.1 MIMO-Femtocell系統模型...........28
4.2 MIMO-Femtocell斷話率分析..........31
4.3 數值結果..................34
第五章 結論......................38
參考文獻........................39

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