系統識別號 | U0002-1408201314523100 |
---|---|
DOI | 10.6846/TKU.2013.00390 |
論文名稱(中文) | 各種屋頂形狀與材質對超寬頻通道容量影響之研究 |
論文名稱(英文) | Channel Capacity of UWB Communication Systems for Various Roofs and Materials of Environments |
第三語言論文名稱 | |
校院名稱 | 淡江大學 |
系所名稱(中文) | 電機工程學系碩士班 |
系所名稱(英文) | Department of Electrical and Computer Engineering |
外國學位學校名稱 | |
外國學位學院名稱 | |
外國學位研究所名稱 | |
學年度 | 101 |
學期 | 2 |
出版年 | 102 |
研究生(中文) | 余佳盈 |
研究生(英文) | Chia-Ying Yu |
學號 | 601440034 |
學位類別 | 碩士 |
語言別 | 繁體中文 |
第二語言別 | |
口試日期 | 2013-07-17 |
論文頁數 | 51頁 |
口試委員 |
指導教授
-
丘建青
委員 - 方文賢 委員 - 李慶烈 |
關鍵字(中) |
多輸入多輸出 超寬頻 射線彈跳 通道容量 多輸入多輸出天線 |
關鍵字(英) |
MIMO-UWB ray-tracing approach channel capacity MIMO antennas |
第三語言關鍵字 | |
學科別分類 | |
中文摘要 |
本論文主要由射線彈跳法去模擬研究四種不同屋頂和兩種不同環境材質,求得超寬頻多輸入多輸出系統的頻率響應,並計算和比較超寬頻通訊的通道容量,其中多輸出多輸入系統其通道容量與天線數量呈現線性成長,帶來高傳輸率以及高傳輸品質,藉此能提升系統傳輸率。 本論文研究使用的四種不同屋頂分別為:1.平面屋頂 2.三角形屋頂 3.栱形屋頂 4.金字塔形屋頂。兩種不同環境材質分別為:1.混凝土2.鐵皮屋。其次,使用2x2MIMO天線,以及4x4 MIMO天線對於此系統通道容量的影響,並發現到不論在何種環境之中,天線數量與通道容量呈現性關係,這些模擬的情形,在金字塔型屋頂有較高的通道容量且性能明顯的好於其他屋頂形狀。 |
英文摘要 |
This paper focuses on the research of channel capacity of Multiple-Input Multiple-Output (MIMO) system for four different geometrical shapes of roof in the materials of concrete and iron in the same environments are investigated. These four roofs include the flat shape roof, the triangle shape roof, the arched shape roof, and the pyramid shape roof. A ray-tracing technique is developed to calculate channel frequency responses in four different geometrical shape roofs, and the channel frequency response is further used to calculate corresponding channel capacity. The channel capacities are calculated based on the realistic environment in this thesis. First, channel capacities of MIMO-UWB System with 2x2 MIMO antennas. Next, the of MIMO-UWB System with 4x4 MIMO antennas are calculated. The channel capacity of narrowband or wideband systems combining with MIMO have been shown that increases approximately linearly with the number of transmitting and receiving antennas. |
第三語言摘要 | |
論文目次 |
第一章 概論 1 1.1 研究背景 1 1.2 研究動機 5 1.3 研究內容簡介 8 第二章 通道計算模型 9 2.1 無線電波傳播通道分析 9 2.2 通道計算模型分析 10 2.3 射線彈跳追蹤法程式流程分析 13 第三章 系統介紹 17 3.1 多輸入多輸出窄頻系統 17 3.2 多輸入多輸出窄頻系統通道容量 21 3.2.1 建立在 CSI-B 狀態下 21 3.2.2 建立在只有 CSI-R 狀態下 22 3.3 影響MIMO容量因素 24 3.3.1 空間自由度(Spatial degree of freedom) 24 3.3.2 特徵矩陣(Eigenmatrix)和條件數目(Condition number 26 3.4 MIMO-UWB系統之通道容量 27 第四章 模擬數值結果 28 4.1 模擬實驗的環境 28 4.2 模擬結果分析與比較 34 第五章 結論 45 參考文獻 46 圖目錄 圖1.1 SISO, SIMO, MISO和MIMO 示意圖 2 圖2.1求得通道頻率響應 10 圖2.2 SBR/Image 程式流程圖 16 圖3.1多輸入多輸出窄頻系統矩陣示意圖 17 圖3.2多輸入多輸出窄頻系統示意圖 19 圖3.3建立在 CSI-B 狀態下多輸入多輸出窄頻系統的等效架構圖 20 圖4.1平面屋頂之3D立體圖 30 圖4.2三角形屋頂之3D立體圖 31 圖4.3金字塔形屋頂之3D立體圖 32 圖4.4拱形屋頂之3D立體圖 33 圖4.5平面屋頂時不同材質屋頂與不同天線數量之通道容量比較圖 37 圖4.6三角屋頂時不同材質屋頂與不同天線數量之通道容量比較圖 38 圖4.7金字塔屋頂時不同材質屋頂與不同天線數量之通道容量比較圖 39 圖4.8拱形屋頂時不同材質屋頂與不同天線數量之通道容量比較圖 40 圖4.9 2x2MIMO在混凝土材質各種屋頂形狀之通道容量比較圖 41 圖4.10 3x3MIMO在混凝土材質各種屋頂形狀之通道容量比較圖 42 圖4.11 4x4MIMO在鐵皮材質各種屋頂形狀之通道容量比較圖 43 圖4.12 2x2MIMO在鐵皮材質各種屋頂形狀之通道容量比較圖 44 圖4.12 3x3MIMO在鐵皮材質各種屋頂形狀之通道容量比較圖 45 圖4.12 4x4MIMO在鐵皮材質各種屋頂形狀之通道容量比較圖 46 表目錄 表2.1 對應不同系統中空間自由度的數目 25 |
參考文獻 |
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