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博碩士論文 etd-0729110-011232 詳細資訊
Title page for etd-0729110-011232
論文名稱
Title
極寬頻通道下結合零點嵌入之單載波頻率等化器
A study on Single Carrier Frequency Domain Equalizer With Zero-Padding under UWB Channels
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
47
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
2009-07-21
繳交日期
Date of Submission
2010-07-29
關鍵字
Keywords
單載波頻率等化器
Single Carrier Frequency Domain Equalizer
統計
Statistics
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中文摘要
在超寬頻(UWB)下的單載波頻域等化系統(SC-FDE),利用分時多工存取
(TDMA)結合零點嵌入(Zero-Padding)方法有效增進無線通訊傳輸效能,改善區塊
碼間的干擾(Inter-Block Interference, IBI)與多重存取干擾(Multi-Access
Interference, MAI)等問題。使用這樣的系統可將多使用者相互干擾問題免除。因
為在此系統中,利用TDMA 的概念結合零點嵌入(Zero-Padding)演算法,避免每
個使用者在傳輸上的時間重疊,更有效解決使用者間的傳輸干擾問題。在本篇論
文內將會利用二維空間維度特性的概念,可以避免其他使用者所產生的多重存取
的干擾。零點嵌入(ZP)則可以提供與循環碼(CP)相同效果的信號區間保護,卻無
多餘傳送能量。在本篇論文中不同於傳統分碼多工存取(CDMA),因此不用像
CDMA 需要大量的數學分析,進一步提供低成本與低複雜度的存取系統,並以
提供低錯誤率的表現。最後在超寛頻下針對改善區塊碼間干擾的問題以及多使用
者干擾去作模擬,而從模擬中可以看出本論文提出的方法會優於傳統型的方法。
Abstract
Single Carrier Frequency Domain Equalization (SC-FDE) utilize Time Division multiple Access with Zero-padding under ultra-wideband,it can improve Inter-Block Interference(IBI) and Multi-Access Interference(MAI) to get good performance,This system even can eliminate multi-access interference.
Concept of TDMA can avoid the same time to transmit different user’s data with zero-padding algorithm. This method can efficiency to solve multi-access interference. In this thesis, we will utilize property of two dimension to solve multi-access interference between each others. Zero-padding have good capability the same to Cyclic prefix and can save transmitter power. In this thesis, we will not use CDMA of method because it do not need to much analysis of mathematics, moreover, we can provide low cost and low complexity for system to get low error rate.
Finally we to be aimed at improve IBI and MAI to simulation under ultra-wideband, then simulation will show thesis of method is high performance than traditional of method.
目次 Table of Contents
致謝 i
摘要 ii
Abstract iii
目錄 iv
圖索引 vi
表索引 vii
第一章 簡介 1
1.1 研究動機 1
第二章 系統模型 3
2.1 保護區間及零點嵌入(Zero-padding) 3
2.2 頻域等化 5
2.3 單載波系統之頻域等化 7
2.4 等效通道 9
第三章 頻域接收機架構 11
3.1 TDMA 結合零點嵌入(Zero-Padding) 11
3.1.1 TDMA 傳送端設計 12
3.1.2 TDMA 傳送端與接收端矩陣設計 18
3.2 結合零點嵌入(Zero-Padding)與二維空間特性 19
3.3 頻寛效益的比較 24
3.4 最小均方線性等化器(LMS Linear Equalizer) 25
3.5 複雜度的比較 28
第四章 系統模擬 29
4.1 系統模擬環境設定 29
4.2 模擬圖探討與分析 29
第五章 結論 37
參考文獻 38
參考文獻 References
參考文獻
[1] IEEE 802.15 SG3a, “DS-UWB physical layer submission to 802.15 task group 3a,” IEEE P802.15-04/0137r4, Jan. 2005.
[2] IEEE 802.15 SG3a, “Channel modeling sub-committee report final,” IEEE P802.15-02/490r1-SG3a, Feb. 2003.
[3] I. Bergel, E. Fishler, and H. Messer, “Narrowband interference mitigation in impulse radio,” IEEE Trans. Commun., vol. 53 no. 8, pp. 1278-1282, Aug. 2005.
[4] Y. Wang , X. Dong, P. H. Wittke and S.Mo, “Cyclic Prefixed Single Carrier Transmission in Ultra-wideband Communications,” IEEE Trans. Commun., vol. 5, no.8, pp.2017-2021, Aug. 2006.
[5] Y. Tang and B. Vucetic, “The FFT-based multiuser detection for DS-CDMA
ultra-wideband communication systems”, proc. Ultra Wide-band Systems, vol.
WA4-5, pp. 111-115, May 2004.
[6] Z. Wang, X. Ma and G. and B. Giannakis, “OFDM or Single-Carrier Block Transmissions?”, IEEE Trans. Commun., vol. 52, no.3, pp. 380-394, March 2004.
[7] Y. Wang and X. Dong, “A time-division multiple-access SC-FDE system with IBI suppression for UWB communications ”, IEEE J. Sel. Areas Commun., vol.24, no. 4, pp. 920-926, Apr. 2006.

[8] S. Zhou, G. B. Giannakiss, and C. L. Martret, “Chip-interleaved block-spread code division multiple access,” IEEE Trans. Commun., vol. 50 no.2, pp. 235-248, Feb. 2002.
[9] H. Sari, G. Karam, and I. Jeanclaude, “Transmission techniques for digital terrestrial TV broadcasting,” IEEE commun. Mag., vol. 33, no. 2, pp. 100-109, Feb. 1995.
[10] J. Brewer, “Kronecker products and matrix calculus in system theory,” IEEE
Trans. Circuits Syst., vol. 25, no. 9, pp. 772-781, Sep. 1987.
[11] S. Haykin, Adaptive Filter Theory, 4th edition, Prentice-Hall, 2002.
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