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研究生:張又今
研究生(外文):You-Chin Chang
論文名稱:多載波正交多速率調變
論文名稱(外文):Multicarrier Orthogonal Multirate Modulation
指導教授:鐘嘉德鐘嘉德引用關係
口試委員:林茂昭李穎李志鵬李大嵩
口試日期:2015-06-26
學位類別:碩士
校院名稱:國立臺灣大學
系所名稱:電信工程學研究所
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:2015
畢業學年度:103
語文別:英文
論文頁數:58
中文關鍵詞:多載波濾波有限頻寬傳輸部分響應信號區塊編碼截波
外文關鍵詞:Filter Bank Multicarrierbandlimited communicationpartial response signalingblock precodingpulse truncation
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由於現今無線通訊裝置日趨普遍,頻譜成了寶貴的資源,如何提高頻譜使用效率是現今通訊重要的議題。部分響應訊號為頻譜有限訊號,因為可以達到最大的頻譜使用效率,而被廣泛的應用及研究。由於頻譜有限訊號在時域上為無限長的脈波,因此不適用於叢發傳輸。
在此篇論文,我們結合多載波調變以及先前提出的正交多速率調變提出了多載波正交多速率調變系統,藉由設計數位濾波器,可以使的正交多速率調變訊號擁有能量集中的特性,如此一來,在實做上,若使用截波訊號來取代原訊號也不會造成太大的失真,且可適用於叢發傳輸。
此外,我們針對正交多速率調變訊號的能量分布特性提出兩種截波方法,為了降低實做的複雜度,我們也提出了高效能的架構。


With the increasing number of wireless communication devices, bandwidth becomes the
precious resource. How to improve the bandwidth ef ciency is the important issue. Partial
response (PR) signaling is bandlimited signaling. Because PR signaling can achieve maximum
bandwidth ef ciency, PR signaling is widely applied to the wireless communication.
However, because the impulse response of the bandlimited signal is in nite, it is not suitable
for the burst transmission and low latency scenarios.
In this thesis, we propose the multicarrier orthogonal multirate (MC-OMR) modulation
which combines multicarrier modulation and OMR modulation which has been proposed.
The MC-OMR waveform can have high energy compactness by designing the digital lter.
By doing so, in practice, if the transmitted waveform is the truncation version of the
MC-OMR waveform, the impact of the truncation on the data loss will be less signi cant.
Therefore, the MC-OMR is suitable for the burst transmission.
Moreover, according to the energy distribution property of MC-OMR signal, we propose
the two truncation methods. In order to decrease the implementation complexity, we propose
the ef cient structure of MC-OMR system.

Abstract i
Contents ii
List of Figures iii
1 Introduction 1
1.1 Multicarrier Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Partial Response Signaling . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3 Filter Bank Multicarrier Modulation . . . . . . . . . . . . . . . . . . . . . . 3
1.4 Thesis Motivation, Overview and Contributions . . . . . . . . . . . . . . . . 4
1.5 Notations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 MC-OMR Signal Model 6
2.1 Ideal MC-OMR Modulator . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Realizable Modulator Design . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.3 Ideal MC-OMR Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.4 Simulation Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3 Realizable System Structure 27
3.1 Energy Compactness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.2 Block Truncated MC-OMR Waveform . . . . . . . . . . . . . . . . . . . . . 29
3.3 Pulse Truncated MC-OMR Waveform . . . . . . . . . . . . . . . . . . . . . 30
3.4 Realizable MC-OMR Demodulator . . . . . . . . . . . . . . . . . . . . . . . 32
3.5 Simulation Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4 Ef cient System Structure 39
4.1 Ef cient Modulator Structure . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.2 Ef cient Demodulator Structure . . . . . . . . . . . . . . . . . . . . . . . . 44
4.3 Simulation Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
5 Conclusion 55
Bibliography 57


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