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博碩士論文 etd-0212109-185250 詳細資訊
Title page for etd-0212109-185250
論文名稱
Title
WRAN 性能分析之研究
Performance Analysis for WRANs
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
163
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2008-07-23
繳交日期
Date of Submission
2009-02-12
關鍵字
Keywords
無線區域網路、正交分頻多工存取、符號間的干擾、子載波間的干擾
Inter Symbol Interference, Inter Carrier Interference, WRAN, OFDMA
統計
Statistics
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中文摘要
摘要
本篇論文主要是了解與分析目前在制定的802.22 (Wireless Region Area
Networs, WRAN)的運作機制與實體層性能的變化;因此在第二章開始是敘述
WRAN 在MAC Layer 的一些主要的運作機制以及針對WRAN 環境中的特性中,
PHY Layer 可以更有效提升性能的一些主要的概念。
在第三章中,在WRAN 的通道環境下,在不同的通道參數下WRAN 實體
層的錯誤率性能變化;由於WRAN 實體層目前暫定是使用正交分頻多重存取技
術 (Othogoanl Frequency Division Multiple Access, OFDMA),因此具體來說就是
在非時變通道中,在不同CP 長度與不同的通道響應下的WRAN 實體層性能變
化。
在最後一章我們是一次偵測多個從OFDMA 接收下來的訊號,利用最短距
離法則來偵測多個從子載波中接收下來的訊號;最後我們討論了在多個子載波
(維度)接收下,在AWGN 下的性能比較。
Abstract
none
目次 Table of Contents
目錄

目錄 i
圖目錄 iii
表目錄 v
變數列表 vii
縮寫對照表 ix
第一章 導論 1
1.1 研究動機 1
1.2 多載波技術之概念 1
1.3 OFDM/OFDMA 研究方向 2
1.4 論文架構 5
第二章WRAN系統參數以及特性介紹 7
2.1 WRAN簡介 7
2.2 WRAN系統參數 7
2.3 WRAN MAC特性 9
2.2.1 WRAN用戶的網路初始化 9
2.2.2 WRAN系統的偵測 10
2.2.3 WRAN共存機制 11
2.2.4 Incumbent Detection Recovery Protocal (IDRP) 12
2.3 WRAN PHY特性 14
第三章WRAN實體層性能分析 19
3.1 前言 19
3.2 WRAN下行端架構(發射端) 19
3.3 WRAN的通道參數 25
3.4 WRAN接收端(用戶端) 28
3.5單一子載波偵測 (Single Sub-Carrier Detection, SSCD) 下的錯誤率 44
3.7 結果與討論 46
第四章 基於符號偵測的OFDMA系統之性能研究 62
4.1 前言 62
4.2 OFDMA接收端的訊號格式 62
4.3 在高斯雜訊下的判別式 64
4.4向量訊號之間的距離與錯誤率 69
4.4.1向量訊號在QPSK調變下的歐式距離與錯誤率 69
4.4.2 向量訊號在16-QAM調變下的歐式距離與錯誤率 73
4.5 結果與討論 76
第五章 結論與未來方向 79
附錄A SSCD下的錯誤率分析 81
附錄B 複數高斯分佈函數 95
附錄C 第三章程式碼 99
附錄D 第四章程式碼 119
附錄E 單一子載波下的調變與兩個子載波下的調 143
參考文獻 147
參考文獻 References
[1] IEEE 802.22-05/0007r48, “Functional Requirements for the 802.22 WRAN Standard”, http://www.ieee802.org/22/Meeting_documents/2006_Nov/22-05
-0007-48-0000_RAN_Requirements.doc

[2] IEEE 802.22-06/0004r1, “A PHY/MAC Proposal for IEEE 802.22 WRAN Systems”,https://mentor.ieee.org/802.22/file/06/22-06-0004-01-0000-etri-ft-philips-samsung-phy-spec.doc

[3] IEEE 802.22-05/0055r7, “WRAN Channel Modeling”, http://www.ieee802.org/22/Meeting_documents/2005_Sept/22-05-0055-07-0000_ WRAN_channel%20_Modeling.doc

[4] IEEE 802.22-05/0109r1, “WRAN PHY and MAC Proposal for TDD/FDD”, http://www.ieee802.org/22/Meeting_documents/2005_Nov/22-05-0109-01-0000_ETRI-SEM-GATech_Proposal_Presentation.ppt

[5] IEEE 802.22-06/0069r1, “Draft PHY/MAC Specification for IEEE 802.22”, http://www.ieee802.org/22/Meeting_documents/2006_May/22-06-0069-01-0000_P802-22_D0-1_slides.ppt

[6] IEEE 802.22-05/0105r0, “A Cognitive PHY/MAC Proposal for IEEE 802.22 WRAN Systems”, http://www.ieee802.org/22/Meeting_documents/2005_Nov/
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[16] Van Duc Nhuyen and Hans-Peter Kuchenbecker, “Intercarrier and Intersymbol Interference Analysis of OFDM Systems on Time-Invariant Channels”, IEEE
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[17] Werner Henkel, Georg Taubock, Per Odling, Per Ola Borjesson, Niklas Petersson, “The Cyclic Prefix of OFDM/DMT – An Analysis”, IEEE Broadband Comunications, pp. 22-1-22-3, 2002.

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