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研究生:莊瀚文
研究生(外文):Han-Wen Chuang
論文名稱:具頻域等化之區塊傳輸系統於超寬頻通信中之多用戶偵測技術
論文名稱(外文):Multiuser Detection for Block Transmission Systems with Frequency-domain Equalization in Ultra-wideband Communications
指導教授:陳益生陳益生引用關係陳志瀅
指導教授(外文):Yi-Sheng ChenChih-Ying Chen
口試委員:林維崙
口試委員(外文):Wei-Lun lin
口試日期:2013-06-25
學位類別:碩士
校院名稱:逢甲大學
系所名稱:通訊工程學系
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:2013
畢業學年度:101
語文別:中文
論文頁數:60
中文關鍵詞:超寬頻頻域等化區塊傳輸
外文關鍵詞:Ultra-widebandFrequency-domain EqualizationBlock Transmission
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本文針對以空時區塊碼(space-time block code, STBC)為基礎之多輸入多輸出(multiple-input and multiple-output, MIMO)無循環字首(CP free)單載波頻率域等化(single carrier frequency domain equalization, SC-FDE)與正交分頻多工(orthogonal frequency division multiplexing, OFDM)系統在超寬頻(ultra wideband, UWB)通道的情況下進行多用戶偵測。
文中首先利用MIMO CP free-SC-FDE與MIMO CP free-OFDM傳輸系統提出一個分群的用戶偵測技術,只要在訊號傳輸端與接收端設計相對的編碼與解碼矩陣,並利用分群特性在接收端給予相對的天線數量,我們即可在接收端將特定用戶的傳送訊號偵測出來。此外本文更進一步分析與討論在此傳收架構下,系統成對錯誤率(pairwise error probability,PEP)的性能。
最後並將STBC技術應用至CP free的單載波與多載波系統當中,利用CP free與STBC之特性,我們可以達到在接收端之訊號偵測複雜度降低且訊號錯誤率下降的效果。
文中提出的方法可適用於實數訊號與複數訊號的通訊環境中,且具有提高傳輸效率的特性。模擬結果顯示所提出的方法具有相當的可行性。
We propose a cyclic prefix free multiple-access frequency-domain equalization systems in ultra-wideband communications.
Relying on designed procoding matrices imposed on the transmitted data and designed decoding matrices adopted at the receiver, the resultant multiple-access interference and interblock interference free relationship is structured by block circulant channel matrices. Thanks to the block circulant structure; both FFT and IFFT operations are introduced to simplify the matrix inversion at the receiver so that the desired transmitted data can be estimated and then detected. We also analyze and discuss the pairwise error probability of the proposed schemes. Simulation results are used to demonstrate the performance of the proposed method.
目錄
一、前言 1
1.1 研究目的與動機 1
1.2章節概要 2
二、基礎理論與觀念 3
2.1 超寬頻通道介紹(UWB-Channel) 3
2.2 單載波系統與多載波系統 6
2.3 分集技術 7
三、具多重存取之頻域等化超寬頻通訊系統之多用戶偵測 8
3.1單載波系統 8
3.2 分群偵測技術 20
3.3 討論 27
3.3.1 錯誤率分析 27
3.3.2分群之複雜度分析 30
3.4 多載波系統 31
四、具多重存取與空時區塊碼之頻域等化系統 35
4.1具空時區塊碼之單載波頻域等化系統之分群偵測技術 35
4.1.1空時區塊碼之分群偵測於單載波系統演算法 43
4.2 具空時區塊碼之分群偵測於多載波系統 44
4.2.1空時區塊碼之分群偵測於多載波系統演算法 48
五、電腦模擬 49
5.1分群技術於CP free SCFDE之錯誤率模擬 49
5.2 STBC於CP free分群技術SCFDE之錯誤率模擬 52
5.3 STBC於CP free分群技術OFDM之錯誤率模擬 54
六、結論 57
七、參考文獻 58
[1].Y. Wang and X. Dong, “A time-division multiple-access SC-FDE system with IBI suppression for UWB communications,” IEEE Journal on Selected Areas in Communications, vol. 24, no. 4, pp. 920-926, Apr. 2006.
[2].A. Saleh and R. Valenzuela, “A statistical model for indoor multipath propagation,” IEEE Journal on Selected Areas in Communications., vol. 5, no. 2, pp. 128-137, Feb. 1987.
[3].J. Foerster et al., “Channel modeling sub-committee report (Final),” IEEE 802.15 Working Group for Wireless Personal Area Networks, 7 Feb. 2003
[4].L. Yang and G. B. Giannakis, “Ultra-wideband communications:An idea whose time has come,” IEEE Signal Processing Magazine, vol. 21, no. 6, pp.26–54, Nov. 2004.
[5].F. Pancaldi, G. Vitetta, R. Kalbasi, N. Al-Dhahir, M. Uysal, and H. Mheidat,“Single-carrier frequency domain equalization,” IEEE Signal Processing Magazine, vol. 25, no. 5, pp.2–23, Sep. 2008.
[6].D. Falconer, S. L. Ariyavistakul, A. Benyamin-Seeyar, and B. Eidson, “Frequency domain equalization for single-carrier broadband wireless systems,” IEEE Communications Magazine, vol. 40, no. 4, pp. 58–66, Apr. 2002.
[7].B. Vucetic and J. Yuan, “Space-time coding,” John Wiley &; Sons Inc., 2003
[8].J. Brewer, “Kronecker products and matrix calculs in system theory,” IEEE Trans. Circuits and Systems, vol. 25, no. 9, pp. 772-781, Sep. 1978.
[9].A. Batra, J. Balakrishnan, G. R. Aiello, J. R. Foerster, and A. Dabak, “Design of a multiband OFDM system for realistic UWB channel environments,” IEEE Trans. Microwave Theory and Techniques, vol. 52, no.9, pp. 2123-2138, Sep. 2004.
[10].M. C. Chiu, W. D. Wu, and C. C. Chao, “Frequency-diversity coded OFDM for ultra-wideband systems with under-sampling-rate receivers,” IEEE Communications Magazine, vol. 4, pp. 2852-2856, Sep. 2005.
[11].H. Yeesoo, H. Heon, and J. V. Krogmeier, “Comparison of error probability for OFDM and SC-FDE,” in Proc. 37th Annual Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, California, USA., vol. 1, pp. 497-501, Nov. 2003.
[12].H. Sari, G. Karam, and I. Jeanclaude, “Frequency domain equalization of mobile radio and terrestrial broadcast channels,” in Proc. IEEE GLOBECOM., San Francisco, California, USA., vol. 1, pp. 1-5, Nov.-Dec. 1994.
[13].X. Zhu and R. D. Murch, “Performance analysis of maximum likelihood detection in a MIMO antenna system,” IEEE Trans. Communications, vol. 50, no. 2, pp. 187-191, Feb. 2002.
[14].R. U. Nabar, H. Bolcskei, and F. W. Kneubuhler, “Fading relay channels: performance limits and space–time signal design,” IEEE Journal on Selected Areas in Communications, vol. 22, no. 6, pp. 1099-1109, Aug. 2004.
[15].Y. S. Chen, “Semiblind channel estimation for MIMO single carrier with frequency-domain equalization systems,” IEEE Trans. Vehicular Technology, vol. 59, no. 1, pp. 53-62, Jan. 2010.
[16].Y. S. Chen and J. H. Song, “Semiblind channel estimation for MIMO-OFDM systems,” EURASIP Journal on Advances in Signal Processing, 2012:212. Oct. 2012.
[17].S. Alamouti, “A simple transmit diversity technique for wireless communication,” IEEE Journal on Selected Areas in Communications, vol. 16, no. 8, pp. 1451-1458, Oct. 1998.
[18].N. Al-Dhahir, “Single-carrier frequency-domain equalization for space time-coded transmissions over broadband wireless channels,” in Proc. Personal Indoor and Mobile Radio Communications (PIMRC), San Diego, California, USA., pp. B143–B146, Sep.-Oct. 2001.
[19].J. Proakis, “Digital communication,” New York: McGraw-Hill, 2000.
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