用於雙向無線通訊之實體層相差網路編碼

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姓名

李怡君(Yi-Chun Li) 查詢紙本館藏

畢業系所

通訊工程學系

論文名稱

用於雙向無線通訊之實體層相差網路編碼
(Differential Network Coding at the Physical Layer for Two-Way Wireless Communications)

相關論文

★ 具有快速改變載波相位之籬柵編碼MPSK 的非同調解碼	★ 用於非同調解碼之多層次編碼調變
★ 么正空間時間籬柵碼之解碼演算法	★ 由多層次編碼所架構之非同調碼
★ 用於非同調檢測之與空時區塊碼連結的區塊編碼調變	★ 用於正交分頻多工系統具延遲處理器的空時碼
★ 用於非同調區塊編碼MPSK之A*解碼演算法	★ 在塊狀衰退通道上的籬柵么正空時調變
★ 用於非同調區塊編碼MPSK之Chase演算法	★ 使用決定回授檢測之相差空時調變的一種趨近同調特性
★ 具延遲處理器的空時碼之軟式輸入輸出遞迴解碼	★ 用於非同調區塊編碼MPSK的最大可能性解碼演算法
★ 具頻寬效益之非同調調變	★ 非同調空時渦輪碼
★ 循環字首及補零正交分頻多工系統經預編碼後之頻譜比較	★ 循環字首及補零正交分頻多工系統在時序同步上之效能比較

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摘要(中)

無線通訊所需傳送的資料量越來越多，所以如何在越短時間內傳送相同資料量是重要的研究主題。兩終端節點藉由中繼節點同時傳送訊號至彼此的雙向無線通訊技術為近年來熱門的研究，而實體層網路編碼可以進一步提升頻寬效益。另一方面，相差編碼不需要傳送前導符元做通道估測，故不會造成速率損失，也是一個值得研究的通訊技術。

在本篇論文中，我們研究使用單一中繼節點的放大轉發和解碼轉發之相差編碼兩階段雙向無線傳輸架構，首先將一些既有論文在相同條件下比較。我們使用多位元相位偏移調變，將其在不同的通道模型下做模擬，且本論文也研究三階段雙向無線傳輸架構，並基於相同傳輸速率做比較。

除此之外，本論文提出了一個新的使用M-PSK訊號之解碼轉發架構，我們利用中繼節點在前兩個時間收到的訊號去估計參考訊號，再將估計的參考訊號用於目前訊號的判斷。由模擬結果顯示，我們提出的新架構有最好的錯誤效能。

摘要(英)

Wireless communications is required to transmit quantity of data more and more. The important studying topic is how to transmit the same quantity of data in a shorter period of time. Recently, two-way wireless communication is a popular type of communication technology, where two terminal nodes transmit simultaneously to each other with the help of the relay node. The physical layer network coding can further improve bandwidth efficiency. On the other hand, differential encoding is not required to transmit pilot symbols for channel estimation, so it does not cause rate loss. It is also a communication technology worth studying.

In this thesis, we study differential encoding for two-phase two-way wireless transmission with the single-relay for amplify-and-forward (AF) and decode-and-forward (DF). First, we compare existent techniques under the same conditions. We use M-PSK (phase-shift keying) modulation, and do computer simulations under different channel models. We also study three-phase two-way wireless transmission, and compared two-phase transmission with three-phase transmission based on the same transmission rate.

Besides, in this thesis, we propose a new decode-and-forward scheme using M-PSK signals. This scheme uses the received signals at the relay in previous two time slots to estimate the reference signal, and then decide the current signal according to the estimated reference signal. Simulation results show that the proposed scheme has the best error performance.

關鍵字(中)

★ 中繼節點
★ 放大轉發
★ 解碼轉發
★ 雙向中繼網路
★ 實體層網路編碼

關鍵字(英)

★ Relay node
★ Amplify-and-Forward
★ Decode-and-Forward
★ Two-Way Relay Networks
★ Physical Layer Network Coding

論文目次

摘要 I
Abstract II
致謝 III
目錄 V
圖目錄 VII
表目錄 IX
第一章緒論 1
1-1 研究動機 1
1-2 內容介紹 2
第二章相關背景介紹 3
2-1 合作式通訊 3
2-1-1 放大轉發 4
2-1-2 解碼轉發 4
2-2 雙向中繼網路 5
2-3 網路編碼 6
2-3-1 發展簡史 6
2-3-2 蝴蝶網 7
第三章現有的雙向無線通訊技術之比較與探討 8
3-1 三階段雙向傳輸 8
3-2 回顧兩階段雙向傳輸 10
3-2-1 論文[6]的作法 11
3-2-2 論文[7]的作法 12
3-2-3 論文[8]的作法 13
3-3 論文[6]與論文[8]之差異性 14
3-4 論文[6]不適用於QPSK和8PSK調變之原因 16
3-5 三階段雙向傳輸架構與文獻比較 17
3-5-1 半穩態雷利衰退通道下之模擬結果 17
3-5-2 傑克斯模型衰退通道下之模擬結果 21
第四章新的使用M-PSK訊號之解碼轉發架構 34
4-1 新三符元偵測方法 34
4-2 模擬結果 43
4-2-1 用於半穩態雷利衰退通道 43
4-2-2 用於傑克斯模型衰退通道 47
第五章結論 55
參考文獻 56
附錄 58

參考文獻

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[2] R. Koetter and M. Medard, “Beyond Routing: An Algebraic Approach to Network Coding,” IEEE Infocom, 2002.
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[6] T. Cui, F. Gao, and C. Tellambura, “Differential modulation for two-way wireless communications: a perspective of differential network coding at the physical layer,” IEEE Transactions on Communications, vol. 57, no. 10, pp. 2977-2987, Oct. 2009.
[7] L. Song, Y. Li, A. Huang, B. Jiao, and A. V. Vasilakos, “Differential modulation for bidirectional relaying with analog network coding,” IEEE Transactions on Signal Processing, vol. 58, no. 7, pp. 3933-3938, July 2010.
[8] W. Guan and K. J. Ray Liu, “Performance Analysis of Two-Way Relaying with Non-Coherent Differential Modulation,” IEEE Transactions on Wireless Communications, vol. 10, no. 10, pp. 2004-2014, June 2011.
[9] W. C. Jakes, Microwave Mobile Communications. Piscataway, NJ: IEEE Press, 1993.
[10] M. F. Pop and N. C. Beaulieu, “Limitations of sum-of-sinusoids fading channel simulators,” IEEE Transactions on Communications, vol. 49, no. 4, pp. 699–708, Apr. 2001.

指導教授

魏瑞益(Ruey-Yi Wei)

審核日期

2016-7-20

推文