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姓名 張瀞文(Ching-Wen Chang) 查詢紙本館藏 畢業系所 通訊工程學系 論文名稱 具符元排列的空時區塊編碼之空間調變
(Space-Time Block Coded Spatial Modulation with Symbol Permutation)相關論文 檔案 [Endnote RIS 格式]
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摘要(中) 結合空時區塊編碼 (space-time block code) 的空間調變 (spatial modulation),比
起傳統的空間調變藉由一次使用兩個傳送天線可以增加多樣性。然而,現有的
STBC-SM 方案使用旋轉角度來提高頻譜效率,這導致編碼增益距離較小並且星
座擴展較小。為了解決這個問題,我們提出了一種新的 STBC-SM 方案,該方案
通過置換多個 STBC 區塊的符元而無需旋轉角度,從而通過選擇不同的排列樣式
來提高數據速率。該方案被稱為具有符號排列 (symbol permutation) 的空時區塊編
碼。我們推導了符號排列樣式並設計了 STBC-SM-SP 的例子。為了降低複雜性,
我們提出了一種簡化複雜度的最大相似度檢測器,該檢測器的複雜性隨著傳送
天線的數量呈線性增長。此外,所提出的符元排列可應用於其他 STBC-SM 方案
以提高其頻譜效率。分析界限和電腦模擬結果表明,STBC-SM-SP 和結合符元的
STBC-SM 系統都優於其他 STBC-SM 技術。摘要(英) Spatial modulation (SM) with space-time block coding (STBC) increases diversity order
compared to conventional SM by activating two transmit antennas each time. However, existing
STBC-SM schemes use rotation angles to increase spectral efficiency, leading to smaller
coding-gain distance and constellation expansion. To address this, we propose a novel STBCSM scheme that permutates symbols of multiple STBC blocks without rotation angles, allowing
for increased data rate by selecting different permutation patterns. The proposed scheme is
called STBC-SM with symbol permutation (STBC-SM-SP). We derive permutation patterns
and design examples of STBC-SM-SP. To reduce complexity, we propose a reduced-complexity
maximum-likelihood (ML) detector for STBC-SM-SP, whose complexity grows linearly with
the number of transmit antennas. Moreover, the proposed symbol permutation (SP) can be
applied to other STBC-SM schemes to improve their spectral efficiency. Analytical bounds and
computer simulations demonstrate that both STBC-SM-SP and an STBC-SM system combined
with SP outperform other STBC-SM techniques關鍵字(中) ★ 空識區塊編碼 關鍵字(英) ★ space time block code 論文目次 目錄
Page
致謝 i
目錄 ii
圖目錄 iv
表目錄 v
第一章 介紹 1
1.1 研究背景 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
第二章 背景回顧 4
2.1 空時區塊編碼空間調變的通道模型以及回顧 . . . . . . . . . . . . . 4
2.2 增加速率之廣義空間調變系統架構與理論推導 . . . . . . . . . . . . 6
2.3 傳送端-位元映射方式 . . . . . . . . . . . . . . . . . . . . . . . . . . 10
第三章 STBC-SM-SP 的傳送端 13
3.1 定義 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2 排列樣式 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.3 具符元排列空時區塊編碼空間調變例子 . . . . . . . . . . . . . . . . 19
3.4 低複雜最大可能性檢測器 . . . . . . . . . . . . . . . . . . . . . . . . 22
3.5 性能分析 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
ii
第四章 結合既有方法以及模擬結果 27
4.1 結合符元排列和既有空時區塊碼空間調變方法 . . . . . . . . . . . . 27
4.2 數值結果 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
第五章 結論 35
5.1 結論 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
參考文獻 36參考文獻 參考文獻
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[16] H. Jafarkhani, Space-Time Coding, Theory and Practice. Cambridge University
Press, 2005.指導教授 魏瑞益(Ruey-Yi Wei) 審核日期 2023-7-26 推文 plurk
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