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研究生:葉俊顯
研究生(外文):Yeh, Chun-Hsien
論文名稱:合作式多重子載波系統下資源分配最佳化之研究
論文名稱(外文):Study of Resource Allocation Optimization for Cooperative Multi-Subcarriers Systems
指導教授:王瑞騰
指導教授(外文):Wang, Jui-Teng
口試委員:洪志偉麥毅廷
口試委員(外文):Hung, Jeih-weihMai, Yi-Ting
口試日期:2012-07-06
學位類別:碩士
校院名稱:國立暨南國際大學
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:43
中文關鍵詞:放大後前傳中繼合作式通訊多載波系統功率配置子載波配置
外文關鍵詞:Amplify-and-forward(AF) relayingcooperative communicationsmulticarrier systemspower allocationsubcarrier allocation
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在本論文中,我們研究了資源配置的方案,使其可以充分地利用合作式多重子載波系統中可以運用的頻率自由度與空間自由度,我們也探討了此研究方案中的總和頻譜效率與複雜度。
在實際的應用上,在此研究方案上提出了一個訊號模擬架構,我們也模擬了這個訊號處理架構來得到其位元錯誤率(BER),同時,我們也執行了所提出的訊號處理架構的複雜度分析以評估其實施的情況。

In this thesis, we study resource allocation schemes, which can fully utilize the available degrees of freedom in both frequency and space, for cooperative multi-subcarrier systems. We evaluate the sum rate and the complexity of the studied schemes.
For real applications, one signal processing architecture of the studied schemes is proposed. We simulate the proposed signal processing architecture to obtain its bit error rate (BER), also, we perform complexity analyses of the proposed signal processing architecture to evaluate its implementation.

目錄
致謝 I
摘要 II
Abstract III
目錄 IV
圖目錄 VI
表目錄 VII
第一章 緒論 1
1.1 前言 1
1.2 研究目的與動機 1
1.3 論文架構 3
1.4 模擬環境與方法 3
第二章 合作式多載波系統 4
2.1 合作式通訊系統 4
2.1.1 合作式通訊的概念 4
2.1.2 合作式通訊系統的分類 6
2.2 中繼的方法 7
2.2.1 解碼且前傳式中繼傳輸 7
2.2.2 放大且前傳式中繼傳輸 8
2.2.3 其他中繼方法 9
2.3 合作式多載波系統 9
2.3.1 資源分配問題 10
第三章 合作式多載波系統的資源分配 13
3.1 系統描述與訊號模型 13
3.2 聯合功率與子載波分配問題 15
3.3 放鬆問題公式 18
3.3.1 放鬆條件下的最佳功率配置 18
3.3.2 放鬆問題的結果分析 20
3.4 子載波配置演算法 22
3.4.1 高效率的子載波配置演算法 22
3.4.2 減少回傳的方法 25
3.5 合作對象選擇演算法 25
3.5.1 在放鬆條件方法下的充分且必要條件 25
3.5.2 高效率的合作對象演算法 26
第四章 模擬結果與分析 28
4.1 模擬參數與模擬結果 28
4.2 演算法的複雜度分析 34
4.3 訊號處理的模擬與複雜度分析 35
第五章 結論 39
參考文獻 40

圖目錄
圖2.1:單純式中繼方法的無線合作式系統 5
圖2.2:競爭式中繼方法的無線合作式系統 7
圖2.3:多個使用者的合作式多重載波系統 10
圖2.4:在合作式多載波系統中的一個子載波配置策略例子 12
圖3.1:擁有N=3個子載波的兩階段合作式傳輸方案 15
圖3.2:子載波分配演算法 24
圖3.3:合作對象選擇演算法 27
圖4.1:子載波配置演算法與最佳子載波配置的總合頻譜效率比較 29
圖4.2:不同的子載波配置方法的綜合頻譜效率比較 31
圖4.3:迭代功率演算法與不同子載波配置方法的總合頻譜效率比較 32
圖4.4:不同合作對象選擇方法的系統總合頻譜效率比較 33
圖4.5:訊號處理流程圖 36
圖4.6:訊號處理整合架構流程圖 37
圖4.7:訊號處理位元錯誤率比較圖 38

表目錄
表4.1:訊號模擬參數表 35
表4.2:訊號模擬複雜度分析表 38
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