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姓名	李昱君(Yu-Chun Lee)  查詢紙本館藏	畢業系所	通訊工程學系
論文名稱	長區塊之相差空間調變 (Long-Block Differential Spatial Modulation)
相關論文	★ 具有快速改變載波相位之籬柵編碼MPSK 的非同調解碼 ★ 用於非同調解碼之多層次編碼調變 ★ 么正空間時間籬柵碼之解碼演算法 ★ 由多層次編碼所架構之非同調碼 ★ 用於非同調檢測之與空時區塊碼連結的區塊編碼調變 ★ 用於正交分頻多工系統具延遲處理器的空時碼 ★ 用於非同調區塊編碼MPSK之A*解碼演算法 ★ 在塊狀衰退通道上的籬柵么正空時調變 ★ 用於非同調區塊編碼MPSK之Chase演算法 ★ 使用決定回授檢測之相差空時調變的 一種趨近同調特性 ★ 具延遲處理器的空時碼之軟式輸入輸出遞迴解碼 ★ 用於非同調區塊編碼MPSK的最大可能性解碼演算法 ★ 具頻寬效益之非同調調變 ★ 非同調空時渦輪碼 ★ 循環字首及補零正交分頻多工系統經預編碼後之頻譜比較 ★ 循環字首及補零正交分頻多工系統在時序同步上之效能比較
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摘要(中)	在行動通訊的多天線技術中，相差空間調變是一種不需要通道估計和前導訊號的空間調變，而相差空間調變的架構為每個區塊的時間等同於傳送天線的數目，且一次只使用一根天線，並藉由選擇傳送天線來多傳額外的資料位元。在本論文中，我們提出了兩種長區塊之相差空間調變，亦即每個區塊的時間數量大於天線數量之架構，可藉由更多的天線排列選擇來傳更多資料位元。相差空間調變使用的低複雜度檢測器，必須針對所有天線排序去一一做比對，但若此法應用在本架構的情況下，將會變得相當地耗時費工。因此，本文針對長區塊的相差空間調變，提出更進一步改良的低複雜度檢測器，在只掉失些微錯誤性能的情況下，卻大幅降低檢測的複雜度。
摘要(英)	Among various multi-antenna technologies of mobile communication, differential spatial modulation (DSM) is a kind of spatial modulation technique that does not need pilot symbols and channel estimation. The original architecture used by DSM is that the number of antennas and time must be the same,and each time only one antenna is activated to transmit signals. DSM transmits additional information bits by selecting antennas. In this thesis, we propose two long-block DSM schemes,whose quantity of time is longer than the number of antenna in each block. By doing so, more additional information bits can be transmitted. The low-complexity detector of DSM compares all antenna indexs one by one, and it is very complicated for the proposed long-block DSM scheme. Therefore, we propose a further improved low-complexity detector for the long-block DSM. This method would cause only a slight loss of error performance but a great reduction of detected time.
關鍵字(中)	★ 長區塊之相差空間調變	關鍵字(英)
論文目次	目錄 摘要..............................................................i Abstract..........................................................ii 致謝..............................................................iii 目錄..............................................................iv 圖目錄............................................................v 表目錄............................................................vi 第一章 緒論.......................................................1 1.1 背景與研究動機............................................1 1.2 內容介紹..................................................3 第二章 相關背景回顧...............................................4 2.1 相差空間調變..............................................4 2.2 文獻[9]提出的低複雜度非同調最大可能性檢測器...............7 2.3 文獻[20]提出針對巨量天線序列的低複雜度非同調檢測器........10 第三章 長區塊相差空間調變之架構一.................................12 3.1 傳送端設計................................................12 3.2 接收端設計................................................17 3.3 模擬結果與探討............................................19 第四章 長區塊相差空間調變之架構二.................................23 4.1 傳送端設計................................................23 4.2 接收端設計................................................26 4.3 低複雜度檢測器設計........................................27 4.4 模擬結果與探討............................................30 第五章 結論.......................................................38 參考文獻..........................................................39 圖目錄 圖2-1 文獻[20]提出之檢測器的流程圖.................................11 圖3-1 架構一之傳送端方塊圖.........................................12 圖3-2 架構一之接收端方塊圖.........................................17 圖3-3 QPSK星座圖...................................................19 圖3-4 8-PSK星座圖..................................................19 圖3-5 架構一的N_T=3，N_R=1，QPSK模擬結果比較圖....................20 圖3-6 架構一的N_T=3，N_R=1，8-PSK模擬結果比較圖...................21 圖3-7 架構一的N_T=4，N_R=1，QPSK模擬結果比較圖....................21 圖3-8 架構一的N_T=4，N_R=1，8-PSK模擬結果比較圖...................22 圖4-1 架構二的N_T=3，N_R=1，QPSK模擬結果比較圖....................32 圖4-2 架構二的N_T=3，N_R=1，8-PSK模擬結果比較圖...................32 圖4-3 架構二的N_T=4，N_R=1，QPSK模擬結果比較圖....................33 圖4-4 架構二的N_T=4，N_R=1，8-PSK模擬結果比較圖...................33 圖4-5 架構二的N_T=3，N_R=1，QPSK資料位元錯誤蔓延模擬結果圖........34 圖4-6 架構二的N_T=3，N_R=1，8-PSK資料位元錯誤蔓延模擬結果圖.......35 圖4-7 架構二的N_T=3，N_R=1，QPSK天線位元錯誤蔓延模擬結果圖........36 圖4-8 架構二的N_T=3，N_R=1，8-PSK天線位元錯誤蔓延模擬結果圖.......37   表目錄 表3-1 架構一的第一種映射方法之N_T=4、L=8天線排列表...............14 表3-2 架構一的第二種映射方法之N_T=3、L=6天線排列表...............15 表3-3 傳輸速率(rate)比較表.........................................19 表4-1 架構二的N_T=3、L=8參考順序表..............................24 表4-2 傳輸速率(rate)比較表.........................................30 表4-3 低複雜度檢測器檢測次數比較表.................................31
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指導教授	魏瑞益	審核日期	2021-7-12
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