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研究生:沈辰峯
研究生(外文):Shen, Chen-Feng
論文名稱:非正交多重接續方法與資源選擇之研究
論文名稱(外文):Non-Orthogonal Multiple Access with Resource Selection
指導教授:李啟民李啟民引用關係
指導教授(外文):Li, Chi-Min
口試委員:林丁丙吳家琪湯譯增李啟民
口試委員(外文):Lin, Ding-BingWu,Jia-ChyiTang, I-TsengLi, Chi-Min
口試日期:2016-06-08
學位類別:碩士
校院名稱:國立臺灣海洋大學
系所名稱:通訊與導航工程學系
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:2016
畢業學年度:104
語文別:中文
論文頁數:54
中文關鍵詞:NOMA多輸入多輸出系統預編碼矩陣非正交多重接續選擇
外文關鍵詞:NOMAMIMO systema Precoding Matrixresource selection
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  • 下載下載:16
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由於資料傳輸量與頻寬需求量持續倍增,現有頻譜分配方式已無法負荷未來通訊應用服務發展。NTT Docomo於2014年7月的5G白皮書中,提出了非正交多重接續方法(Non-Orthogonal Multiple Access,NOMA)架構[7]。
LTE(Long Term Evolution)系統中採用正交分頻多工(Orthogonal Frequency Division Multiple Access,OFDMA),OFDMA是OFDM技術的演進,使用者可以選擇通道條件較好的子通道(subchannel)進行資料傳輸,一組使用者可以同時接入到某一通道。OFDMA技術被認為是非常適合寬帶無線網路,這些優勢包括可擴展性和MIMO的方便,並有能力利用通道的頻率選擇性。
本文討論非正交多重接續方法(NOMA)相較於現有LTE系統中使用的正交分頻多工(OFDMA)之優劣。由基本的非正交多重接續方法(NOMA)出發,討論如何分配功率以及文獻中的格雷碼和高調變訊號的可能性。並且利用多輸入多輸出(Multiple-input multiple-output, MIMO)系統、LTE(Long Term Evolution)系統中的預編碼矩陣指示訊號(Precoding Matrix Indicator, PMI),來增進資料傳輸率及頻譜效益。
本文將應用預編碼矩陣選擇於NOMA系統,並提出新的預編碼矩陣選擇方法。比較各選擇法於NOMA系統下的通道容量、錯誤率及複雜度。若使用本文所提出的方法,可節省95%以上的計算複雜度。

Because of the increasing demand of the transmission data rate for a wireless access service, the existing spectrum allocation can not satisfy the need for future of communications applications. Hence, NTT Docomo proposes a Non-orthogonal multiple access (NOMA) white paper[7] in 2014 for 5G system.
Long Term Evolution (LTE) systems adopt the orthogonal frequency division multiple access(OFDMA). In OFDMA, users can select channels with better conditions for transmission. OFDMA is widely adopted for the current broadband wireless networks, due to the scaliability and the Hexibility.
The thesis discusses the features of NOMA system and compares to the existing OFDM system. From the basic of non-orthogonal multiple access, the issues of the power allocation and the performance of higher modulation are discussed.
This thesis proposeds the usage of the precoding matrix in NOMA system and the related precoding matrix selection methods. With the usage of the proposed PMI selections and resourse allocation schemes, the computation complexity can be reduced up to 95% compared with the conventional method.

第一章 導論 1
1.1簡介及研究背景 1
1.1.1干擾消除演算法之使用(Interference Cancellation, IC) 3
1.1.2多個使用者的功率分配(Power Allocation, PA) 3
1.2論文大綱 5
第二章 NOMA系統 6
2.1 數學模型 6
2.2 NOMA系統中,不同功率分配分析 7
2.3 NOMA與OFDM之效能分析 11
2.4 應用格雷碼於NOMA系統 13
2.5 使用較高之調變技術 16
第三章 使用預編碼矩陣指示訊號之NOMA系統 18
3.1系統架構 18
3.2預編碼矩陣選擇方法 19
3.2.1 Maximum Mutual Information Selection[4] 21
3.2.2 SVD Based Selection[5] 21
3.2.3 Singular Value Decomposition Selection Criterion(SVD-SC)[6] 22
3.2.4 Maxmin Selection Criterion(MSC)[6] 22
3.3本文提出方法 22
3.3.1 Low-Complexity Maximum Mutual Information Selection 22
3.3.2 Reduced Noise Enhancement(RNE) 23
3.3.3 Modify NOMA Maximum Mutual Information Selection 26
3.3.3.1 Zero Forcing case 26
3.3.3.2 MMSE case 27
3.3.4 Simplify Reduce Noise Enhancement 32
第四章 NOMA系統中之多重接續選擇 34
4.1複數使用者疊加 34
4.2格雷碼加上預編碼矩陣選擇 38
4.3非正交多重接續選擇 39
4.3.1方法一(Procedure 1) 40
4.3.2方法二(Procedure 2) 40
4.3.3方法三(Procedure 3) 41
4.4電腦模擬及複雜度分析 41
第五章 整合模擬及實測結果分析 44
5.1使用實測通道效能分析 44
第六章 結論 52
參考文獻 53


[1] Marvin K.Simon,Mohamed-Slim Alouini “Performance of digital communication over fading Channel,Second Edition” ,JAN 27 ,2005.
[2] Y. Lan, A. Benjebboiu, X. Chen, A. Li, and H. Jiang, Considerations on downlink non-orthogonal multiple access (noma) combined with closed-loop su-mimo," in Proc. International Conference on Signal Processing and Communication Systems (ICSPCS), 2014.
[3] Y. Saito, Y. Kishiyama, A. Benjebbour, T. Nakamura, A. Li, and K. Higuchi, “Non-orthogonal multiple access (NOMA) for future radio access,” IEEE VTC spring 2013, June 2013.
[4] Schwarz, S.; Mehlfuhrer, C.; Rupp, M., “Calculation of the spatial preprocessing and link adaption feedback for 3GPP UMTS/LTE, ” Wireless Advanced (WiAD), 2010 6th Conference on , vol., no., pp.1,6, 27-29 June 2010 doi: 10.1109/WIAD.2010.5544947
[5] Weihong Fu; Fei Zhang; Guo Yantao; Zhiting Cui, “Research on the selection algorithm of precoding matrix in TDD LTE, ” Communication Software and Networks (ICCSN), 2011 IEEE 3rd International Conference on , vol., no., pp.365,368, 27-29 May 2011
[6]蔡佩芸,王銓。適用於 MIMO Precoder Selection for 3GPP-LTE/LTE-A Systems 。國立中央大學電機工程研究所碩士論文
[7] NTT DOCOMO” DOCOMO 5G White Paper 5G Radio Access:Requirements,Concept and Technologies” July 2014.
[8] Trefethen, Lloyd N.; Bau III, David (1997). “Numerical linear algebra,” Philadelphia: Society for Industrial and Applied Mathematics. ISBN 978-0-89871-361-9.
[9] Bai, Z.; Spiegel, C.; Bruck, G.H.; Jung, P.; Horvat, M.; Berkmann, J.; Drewes, C.; Gunzelmann, B., “Dynamic transmission mode selection in LTE/LTE-Advanced system,” Applied Sciences in Biomedical and Communication Technologies (ISABEL), 2010 3rd International Symposium on , vol., no., pp.1,5, 7-10 Nov. 2010
[10] Schwarz, S.; Mehlfuhrer, C.; Rupp, M., “Calculation of the spatial preprocessing and link adaption feedback for 3GPP UMTS/LTE, ” Wireless Advanced (WiAD), 2010 6th Conference on , vol., no., pp.1,6, 27-29 June 2010 doi: 10.1109/WIAD.2010.5544947
[11] Wenshi Chen; Shi Jin, “Performance Evaluation of Closed Loop Transmission for LTE-A Uplink MIMO, ” Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on , vol., no., pp.1,4, 23-25 Sept. 2011
[12] Linli Cui; Chaoran Qi; Yuan Chen; Zhenhai Shao, “Adaption feedback of precoding matrix indicator for 3GPP LTE/LTE-A system, ” High Speed ntelligent Communication Forum (HSIC), 2012 4th International , vol., no., pp.1,4, 10-11 May 2012
[13] Weihong Fu; Fei Zhang; Guo Yantao; Zhiting Cui, “Research on the selection algorithm of precoding matrix in TDD LTE, ” Communication Software and Networks (ICCSN), 2011 IEEE 3rd International Conference on , vol., no., pp.365,368, 27-29 May 2011
[14] Ogawa, D.; Koike, C.; Seyama, T.; Dateki, T., “A Low Complexity PMI/RI Selection Scheme in LTE-A Systems, ” Vehicular Technology Conference (VTC Spring), 2013 IEEE 77th , vol., no., pp.1,5, 2-5 June 2013
[15]吳峯銘, “A Study of Channel Estimation for IEEE802.11p Wireless Vehicle Communications,” 國立臺灣海洋大學通訊與導航工程學系碩士學位論文, 2013.
[16] Y. Saito, A. Benjebbour, Y. Kishiyama, T. Nakamura, ”System-level performance evaluation of downlink non-orthogonal multiple Access (NOMA)”, IEEE PIMRC2013, 8-11 Sept. 2013
[17] 3GPP. “Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical Channels and Modulation (Release 10),” September 2011. [Online]. Available: http://www.3gpp.org/ftp/Specs/html-info/36211.htm
[18] George Tsoulos , “MIMO System Technology for Wireless Communications , ” Electrical Engineering and Applied Signal Processing, Hardcover - Mar 28, 2006

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