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研究生:李晏戎
研究生(外文):Yen-Lung Li
論文名稱:在頻率選擇性衰減通道下高階長期演進系統的載波聚合技術之研究
論文名稱(外文):Carrier aggregation for LTE-Advanced systems in frequency-selective fading channels
指導教授:吳燦明
指導教授(外文):Tsan-Ming Wu
學位類別:碩士
校院名稱:中原大學
系所名稱:電機工程研究所
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:2014
畢業學年度:102
語文別:中文
論文頁數:50
中文關鍵詞:載波聚合高階長期演進系統頻率選擇性衰減通道
外文關鍵詞:Carrier aggregationfrequency-selective fading channelsLTE-Advanced systems
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為了要達到高資料率無線行動寬頻通訊傳輸,高階長期演進系統應用了載波聚合技術將頻段上的分散頻寬聚合成一個大頻寬的區段提供使用者進行高資料率傳輸。論文中介紹了連續和非連續載波聚合技術、與兩種資料聚合機制,同時也介紹了傳播路徑耗損、都卜勒偏移、同調時間與頻率選擇性衰減環境。陸續討論一些相關的技術挑戰如非對稱載波聚合、控制信令設計、換手控制。最後進行了載波聚合在頻率選擇性衰減通道、平緩衰減通道與高斯通道下位元錯誤率與訊號雜訊比的關係。

In order to achieve high data rate transmissions for wireless broadband services from fast-growing mobile users, carrier aggregation (CA) has been proposed as a key feature of the 4G LTE-Advanced systems. This article first introduce contiguous and non-contiguous CA techniques, followed by propagation path loss, doppler frequency shift, coherence time, two data aggregation schemes in physical and medium access control layers and frequency-selective fading channel. Some technical challenges as asymmetric carrier aggregation, control signaling design and handover control are discussed. Simulation results shows bit error rate and signal to noise ratio for carrier aggregation in frequency-selective fading channels, flat fading channels and gaussian channels.

目錄
摘要.........................................................................................................I
Abstract.................................................................................................II
致謝......................................................................................................III
目錄......................................................................................................IV
表目錄..................................................................................................VI
圖目錄.................................................................................................VII
第一章 序論...........................................................................................1
1.1 研究背景.........................................................................................1
1.2 論文架構.........................................................................................5
第二章 LTE-Advanced 相關技術介紹................................................6
2.1 載波聚合........................................................................................6
2.2 傳播路徑耗損..............................................................................15
2.3 都卜勒偏移..................................................................................18
2.4 同調時間......................................................................................23
2.5 資料聚合架構..............................................................................25
2.6 頻率選擇性衰減..........................................................................27
第三章 LTE-Advanced 相關技術挑戰..............................................30
3.1 非對稱載波聚合........................................................................30
3.2 控制信令設計............................................................................34
3.3 換手控制....................................................................................35
第四章 模擬分析.................................................................................38
4.1 頻率選擇性衰減通道下之位元錯誤率分析............................38
第五章 結論.........................................................................................40
參考文獻...............................................................................................41

表目錄
表 1 頻譜效率需求之比較...................................................................................2

圖目錄
圖 2.1 載波聚合示意圖.......................................................................................7
圖2.2 載波聚合之頻段配置.............................................................................10
圖2.3 分量載波在下行傳輸的頻道分配.........................................................13
圖2.4 分量載波在上行傳輸的頻道分配.........................................................13
圖2.5 不同頻率與通訊環境的傳播路徑損失.................................................17
圖2.6 都卜勒偏移示意圖.................................................................................19
圖2.7 都卜勒效應下的訊號功率密度頻譜.....................................................21
圖2.8 不同頻率與移動速度上的最大都卜勒偏移.........................................22
圖2.9 資料聚合架構:(a)實體層 (b)媒體存取控制層..................................26
圖2.10 頻率選擇性衰減通道對訊號的影響情形...........................................28
圖3.1 非對稱載波聚合示意圖.........................................................................31
圖3.2 由使用者端發起的換手程序示意圖.....................................................36
圖4.1 三種通道下的位元錯誤率與訊號雜訊比之關係.................................39

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