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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 闕志達(Tzi-Dar Chiueh) | |
dc.contributor.author | Wen-Hao Chiang | en |
dc.contributor.author | 江文豪 | zh_TW |
dc.date.accessioned | 2021-06-16T03:59:57Z | - |
dc.date.available | 2020-02-03 | |
dc.date.copyright | 2015-02-03 | |
dc.date.issued | 2014 | |
dc.date.submitted | 2014-11-17 | |
dc.identifier.citation | [1] International Telecommunication Union [Online]. Available: http://www.itu.int/en/Pages/
default.aspx [2] Cisco Visual Networking Index: Global Mobile Data Traffic Forecast Update, 2012-2018, Cisco, 2013 [Online]. Available: http://www.cisco.com/c/en/us/solutions/collateral/service-provider/visual -networking-index-vni/white_paper_c11-520862.html [3] Professor R.W.Heath Jr, Research, Heterogeneous Networks [Online]. Available:http://www. profheath.org/research/heterogeneous-networks/ [4] S. Sesia, I. Toufik and M. Baker, LTE - The UMTS Long Term Evolution from Theory to Practice. West Sussex, United Kingdom: John Wiley & Sons, Ltd., 2009, pp.474-499 [5] Physical Channels and Modulation (Rel. 11), 3GPP Std. TS 36.211, Rev. 11.3.0, June 2013 [6] User Equipment (UE) radio transmission and reception (Rel. 9), 3GPP Std. TS 36.101, Rev. 9.8.0, June 2011 [7] C.W. Chu, C.C Lee, and Y.H Huang, “Design of An OFDMA Baseband Receiver for 3GPP-LTE Evolution,” in Proc. of IEEE International Symposium on VLSI Design, Automation and Test 2008 (VLSI-DAT 2008), Hsinchu, Taiwan, Apr. 2008, pp. 169-199. [8] C. C. Lee, C. F. Liao, C. M. Chen, and Y. H. Huang, “Design of 4x4 MIMO-OFDMA Receiver with Precode Codebook Search for 3GPP-LTE,” in Proc. of IEEE International Symposium on Circuits and Systems 2010 (ISCAS 2010), Paris, France, May 2010, pp. 3957 – 3960. [9] C. Y. Chu. “Design and Implementation of a Baseband Receiver for 3GPP Long Term Evolution System,” M.S. thesis, National Taiwan University, Taipei, Taiwan, July 2013. [10] C. C. Liao. “Design of a Baseband Transceiver for 3GPP LTE subscriber Station,” M.S. thesis, National Taiwan University, Taipei, Taiwan, July 2011. [11] T. D. Chiueh, P. Y. Tsai, I. W. Lai, “Baseband Receiver Design for Wireless MIMO-OFDM Communications, 2nd ed.,” Wiley Inc., chapter 5 synchronization, Apr. 2012 [12] P. Y. Tsai, H. Y. Kang, T. D. Chiueh, “Joint weighted least squares estimation of frequency and timing offset for OFDM systems over fading channels,” in Proc. of IEEE Vehicular Technology Conf. Volume 4, pp.2543-2547, April 22-25, 2003. [13] P. Fertl, J. Jalden, and G. Matz, “Performance assessment of MIMO-BICM demodulators based on mutual information,” Signal Processing, IEEE Transactions on, vol. 60, pp. 1366–1382, Mar. 2012. [14] S. Boyd and A. Mutapcic, “Subgradient methods,” in lecture notes of EE364b, Stanford University, Winter 2006-2007. [15] D. H. Brandwood, “A complex gradient operator and its application in adaptive array theory,” Communications, Radar and Signal Processing, IEE Proceedings F , vol.130, no.1, pp.11,16, February 1983 [16] L. Chen. “Power Control and Beamforming Design in SIC-Based Receiver for Heterogeneous Networks,” M.S. thesis, National Taiwan University, Taipei, Taiwan, October 2013. [17] M. Sadek, A. Tarighat, and A. H. Sayed, “A Leakage-Based Precoding Scheme for Downlink Multi-User MIMO Channels,” Wireless Communications, IEEE Transactions on , vol.6, no.5, pp.1711,1721, May 2007 [18] W. Shin, N. Lee, J. B. Lim, C. Shin, and K. Jang, “On the design of interference alignment scheme for two-cell MIMO interfering broadcast channels,” Wireless Communications, IEEE Transactions on , vol.10, no.2, pp.437,442, February 2011 [19] C. Suh and D. Tse, “Interference alignment for cellular networks,” in Proc. of Allerton Conf. Commun., Control, Comput., pp. 1037–1044. , Sep. 23–26, 2008. [20] B. C. Diego. “Fairness Analysis of Wireless Beamforming Schedulers,” P.H.D. thesis, Universitat Politecnica de Catalunya, Barcelona, Spain, July 2004. [21] C. Na, X. Hou, and Harada, A, “Enhanced iterative max-sum-rate algorithm for linear MU-MIMO precoding,” Personal Indoor and Mobile Radio Communications (PIMRC), 2011 IEEE 22nd International Symposium on, vol., no., pp.1495,1499, 11-14 Sept. 2011 | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/55390 | - |
dc.description.abstract | 第四代行動通訊系統是目前無線通訊的趨勢與主流,且為了解決用戶們能隨時隨地的利用智慧型手機與行動裝置平板上網並使用多媒體的數據串流等需求,高傳輸率的訴求以及能夠負擔以爆炸性速度成長的數據流量的網路容量,已成為目前行動通訊系統演進的首要目標。
為了增加網路容量,異質網路被認為是未來行動網路的候選之ㄧ。然而異質網路中,基地台之間的功率差距會根據其大小和服務範圍而不同,導致其由於基地台之間的傳送功率差距過大,使得細胞間干擾將會比傳統網路更嚴重,而大大地限制了異質網路的效能。 傳統上,功率控制及波束成型的設計方向是以壓抑干擾或避免干擾為主,而本論文提出了有別於以往概念的演算法:反過來利用強干擾的訊號並刻意降低傳送訊號功率來幫助用戶藉由干擾消除在可接受得位元錯誤率情況下也能運作良好,並進而達到節省傳輸功率的目的。本論文利用根據3GPP LTE標準架構設計的硬體基頻接收機,並使用NI的射頻儀器模擬異質網路的環境,實際的透過real-time的訊號即時解調系統來進行實場測試,也藉由測試結果來驗證本論文提出的演算法之效能與實用性。結果顯示提出的方法在強干擾的情境下依舊可以使得接收機在運作良好的狀況下,來降低訊號的傳輸功率。 | zh_TW |
dc.description.abstract | Currently, 3GPP LTE Standard is the mainstream of wireless communication system. In order to satisfy the users' demands of internet and multimedia stream, the high transmission rate and the large capacity are the first priority for the improvement of wireless communication system. In order to increase the capacity, Heterogeneous Network has been consider to be one of the cellular networks for the next generation. However, the large power level difference between the base stations induce a severe inter-cell interference which confines the efficiency of the Heterogeneous Network.
In this thesis, we propose a novel idea and algorithm to help the desired signal survive by cancelling the strong interference signal instead through lowering the transmission power with optimized beamforming pattern. We also emulate the environment of the Heterogeneous Network with RF front-end from National Instrument. With hard-ware implementation of 3GPP LTE standard baseband receiver, the field trial experiment will be held through real-time demodulation to validate the effectiveness of the algorithm. The result shows that with the algorithm, the user can still work properly with power-saving transmission strategy under severe inter-cell interference. | en |
dc.description.provenance | Made available in DSpace on 2021-06-16T03:59:57Z (GMT). No. of bitstreams: 1 ntu-103-R01943150-1.pdf: 16653489 bytes, checksum: 4e3912e698dfe54f2db644a5353b43f2 (MD5) Previous issue date: 2014 | en |
dc.description.tableofcontents | 誌謝…………………………………………………………………..……………….….…….I
摘要…………………………………………………………………………..……...………...II Abstract……………………………………………………………………….………..……..III 目錄………………………………………………………………….…………….….……….IV 圖目錄……………………………….…………………………….……...….………….…..... V 表目錄……………………………….…………………………….…...….…………….…….VI 第一章 緒論 1 1.1 研究背景 1 1.2 研究動機 2 1.3 論文架構 3 第二章 異質網路 4 2.1 基地台種類 4 2.1.1 細胞範圍擴展 6 2.2 Almost Blank Subframes 7 第三章 3GPP LTE 標準介紹 9 3.1 訊框架構 9 3.2 下行參數 11 3.3 訊號星座圖之對應 11 3.4 同步訊號(Synchronization Signals) 12 3.4.1 主要同步訊號(Primary Synchronization Signal) 15 3.4.2 次要同步訊號(Secondary Synchronization Signal) 16 3.5 參考訊號(Reference Signals) 18 3.6 基頻通道模型 21 3.6.1 多重路徑瑞雷衰減通道 (Multipath Rayleigh Fading Channel) 22 3.6.2 加成性白色高斯雜訊 (AWGN) 25 3.6.3 載波頻率飄移 (Carrier Frequency Offset) 25 3.6.4 取樣時脈飄移 (Sampling Clock Offset) 26 第四章 接收機硬體架構設計 27 4.1 系統點數決定 27 4.2 接收機架構概述 29 4.3 初始同步估測 (Synchronization for acquisition) 30 4.3.1 符元邊界粗估 (Coarse Symbol Boundary Detection) 30 4.3.2 分數載波頻率飄移估測 (Fractional CFO Estimation) 33 4.3.3 PSS兩階段偵測整數載波頻率飄移與Sector ID[9] 35 4.3.4 SSS訊號偵測Group ID[11] 38 4.3.5 符元邊界細估 (Fine Symbol Boundary Detection 43 4.4 快速傅立葉轉換 43 4.5 載波頻率飄移與取樣時脈偏移追蹤迴路 (CFO and SCO Tracking) 45 4.5.1 聯合加權最小方差估測器 (Joint Weighted Least Squares Estimator) 46 4.5.2 取樣時脈飄移補償 48 4.6 通道估測 (Channel Estimation) 49 4.7 訊號解碼與等化(Detection and Equalization) 49 4.8 硬體驗證流程與結果 53 第五章 理論位元錯誤率推導與單輸入單輸出系統功率控制 55 5.1 連續干擾消除 55 5.2 單輸入單輸出訊號模型和ISR與BER的關係 56 5.3 Q函數 58 5.4 忽略干擾與消除干擾之理論位元錯誤率[16] 59 5.4.1 忽略PBS先行解調來自MBS的干擾訊號 60 5.4.2 消除干擾並解調剩餘的PBS訊號 60 5.5 理論可達速率推導[13] 62 5.6 理論位元錯誤率近似[16] 63 5.7 單輸入單輸出功率控制設計 65 第六章 多輸出與多輸入系統與訊號即時解調之實場測試 68 6.1 即時訊號解調系統平台介紹 68 6.2 Gradient Method 71 6.3 Single User MIMO 73 6.3.1 等效SISO功率控制 74 6.3.2 功率控制實場測試與驗證結果 75 6.3.3 提出的聯合功率控制和波束成型設計 81 6.3.4 波束成型實場測試與驗證結果 85 6.4 Multi-User MIMO 91 6.4.1 Multi-User 理論位元錯誤率 91 6.4.2 文獻中之聯合波束成型設計 95 6.4.3 提出的聯合功率控制和波束成型設計 100 6.4.4 模擬結果與比較 102 6.4.5 實場測試與驗證結果 109 第七章 結論與展望 120 參考資料 121 | |
dc.language.iso | zh-TW | |
dc.title | 適用於異質網路連續干擾消除接收機之硬體實作與波束成型和功率控制設計 | zh_TW |
dc.title | Implementation of SIC-Based Baseband Receiver and Beamforming Design with Power Control for Heterogeneous | en |
dc.type | Thesis | |
dc.date.schoolyear | 103-1 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 蘇柏青(Bor-Ching Su),李佳翰(Chia-Han Lee) | |
dc.subject.keyword | 異質網路,功率控制,波束成型,干擾訊號比,干擾消除,基頻接收機設計,實場測試驗證,即時訊號解調, | zh_TW |
dc.subject.keyword | Heterogeneous Network,power control,beamforming design,interference cancellation,baseband receiver,field trial experiment,real-time demodulation, | en |
dc.relation.page | 123 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2014-11-17 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 電子工程學研究所 | zh_TW |
顯示於系所單位: | 電子工程學研究所 |
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