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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 蘇柏青 | |
dc.contributor.author | Bo-Fong Chou | en |
dc.contributor.author | 周柏夆 | zh_TW |
dc.date.accessioned | 2021-06-16T10:44:03Z | - |
dc.date.available | 2014-08-14 | |
dc.date.copyright | 2013-08-14 | |
dc.date.issued | 2013 | |
dc.date.submitted | 2013-08-13 | |
dc.identifier.citation | [1] S. Alamouti, ``A simple transmit diversity technique for wireless communications,'
Selected Areas in Communications, IEEE Journal on, vol. 16, no. 8, pp. 1451--1458, 1998. [2] J. Chuang and N. Sollenberger, ``Beyond 3g: wideband wireless data access based on ofdm and dynamic packet assignment,' Communications Magazine, IEEE, vol. 38, no. 7, pp. 78--87, 2000. [3] M.-L. Ku and C.-C. Huang, ``A complementary codes pilot-based transmitter diversity technique for ofdm systems,' Wireless Communications, IEEE Transactions on, vol. 5, no. 3, pp. 504--508, 2006. [4] G. Giannakis, ``Filterbanks for blind channel identification and equalization,' Signal Processing Letters, IEEE, vol. 4, no. 6, pp. 184--187, 1997. [5] B. Muquet, Z. Wang, G. Giannakis, M. De Courville, and P. Duhamel, ``Cyclic prefixing or zero padding for wireless multicarrier transmissions?' Communications, IEEE Transactions on, vol. 50, no. 12, pp. 2136--2148, 2002. [6] Y. Li, N. Seshadri, and S. Ariyavisitakul, ``Channel estimation for ofdm systems with transmitter diversity in mobile wireless channels,' Selected Areas in Communications, IEEE Journal on, vol. 17, no. 3, pp. 461--471, 1999. [7] Z. Liu, G. Giannakis, S. Barbarossa, and A. Scaglione, ``Transmit antennae spacetime block coding for generalized ofdm in the presence of unknown multipath,' Se-lected Areas in Communications, IEEE Journal on, vol. 19, no. 7, pp. 1352--1364, 2001. [8] T.-H. Chang, W.-K. Ma, and C.-Y. Chi, ``Maximum-likelihood detection of orthogonal space-time block coded ofdm in unknown block fading channels,' Signal Processing, IEEE Transactions on, vol. 56, no. 4, pp. 1637--1649, 2008. [9] S. Zhou, B. Muquet, and G. Giannakis, ``Subspace-based (semi-) blind channel estimation for block precoded space-time ofdm,' Signal Processing, IEEE Transactions on, vol. 50, no. 5, pp. 1215--1228, 2002. [10] J.-G. Kim, J.-H. Oh, and J.-T. Lim, ``Subspace-based channel estimation for mimoofdm systems with few received blocks,' Signal Processing Letters, IEEE, vol. 19, no. 7, pp. 435--438, 2012. [11] Y. Zeng, W. Lam, and T.-S. Ng, ``Semiblind channel estimation and equalization for mimo space-time coded ofdm,' Circuits and Systems I: Regular Papers, IEEE Transactions on, vol. 53, no. 2, pp. 463--474, 2006. [12] X. Yanming and G. Fei, ``Subspace-based blind channel estimation for stc-ofdm using few received blocks,' in Communication Technology, 2008. ICCT 2008. 11th IEEE International Conference on, 2008, pp. 462--465. [13] J. L. Yu and Y.-C. Lin, ``Space-time-coded mimo zp-ofdm systems: Semiblind channel estimation and equalization,' Circuits and Systems I: Regular Papers, IEEE Transactions on, vol. 56, no. 7, pp. 1360--1372, 2009. [14] S.-Y. Yo and B. Su, Generalized Algorithms for Subspace-based Blind Channel Estimation in Space-Time Block Coded ZP Systems. Graduate Institute of Communication Engineering College of Electrical Engineering and Computer Science Notional Taiwan University Master Thesis, 2011. [15] Y.-C. Pan and S.-M. Phoong, ``An improved subspace-based algorithm for blind channel identification using few received blocks,' Communications, IEEE Transactions on, 2013. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/61059 | - |
dc.description.abstract | 在這篇論文中,我們研究在多輸入多輸出補零系統下傳送端使用著Alamouti 塊狀時空編碼的前提下,基於子空間方法之盲通道估測演算法。我們所提出的演算法可以被使用在有著廣義預編碼器之塊狀時空補零系統下,像是單載波補零以及補零正交分頻多工。我們所提出的演算法結合使用了前後平均技術以及循環排列的概念,因此可以在少數接收資料的前提下順利運作。另外,我們使用另一個稱為循環重複
參數。只要適當的選擇這個參數,演算法效能將可以被輕微的改善。且再補零正交分頻多工不使用前後平均技術的前提下,選擇大於零之循環重複參數將可以大幅的提升演算法順利運作的機率。再和前人的方法比較中,可以發現我們有著下列較前人方法優異的地方1) 我們有著更好的通道估測效能; 2) 我們所需的接收區塊較少。且這些優點都將在模擬結果中被證實。 | zh_TW |
dc.description.abstract | In this thesis, we studied subspace-based blind channel estimation in multiple-input-multiple-output (MIMO) zero-padded (ZP) systems whose transmitter is employed with a special case of space-time-block-codes (STBC), namely, the Alamouti codes. The proposed algorithm can be applied in such STBC-ZP systems with generalized precoders which are equivalent to, for example, zero-padded single carrier (SC-ZP) systems and zero-padded orthogonal frequency division multiplexing (ZP-OFDM) systems. The proposed method is capable of working with a small amount of received data by using the circulant permutation concept and forward and backward (FB) averaging techniques jointly. In the proposed method, we also introduce a new parameter called circulant repetition index. The performance of the proposed method
can be slightly improved by choosing a circulant repetition index properly. The probability for the proposed method to work can be further increased by choosing circulant repetition index large than zero in ZP-OFDM systems without using FB technique. Compared with several algorithms in the recent literature, the proposed method possesses advantages in 1) better performance; 2) fewer required received blocks. Simulation results verified these advantages. | en |
dc.description.provenance | Made available in DSpace on 2021-06-16T10:44:03Z (GMT). No. of bitstreams: 1 ntu-102-R00942098-1.pdf: 996181 bytes, checksum: 3b79246951a763287b0a0a68866ce97a (MD5) Previous issue date: 2013 | en |
dc.description.tableofcontents | 口試委員會審定書 i
致謝ii 中文摘要iii Abstract iv Contents v List of Figures vii List of Tables viii 1 Introduction 1 2 System Model and Problem Formulation 4 2.1 Notations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2 System model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.3 Problem formulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3 Novel Blind Channel Estimation 12 3.1 The Concept of Circulant Permutation . . . . . . . . . . . . . . . . . . . 14 3.2 The Circulant Repetition Index . . . . . . . . . . . . . . . . . . . . . . . 15 3.3 Forward-Backward (FB) Averaging Technique . . . . . . . . . . . . . . 17 3.4 Channel Estimation form Left Annihilators of ˜Y(Qc) J or ‾Y(Qc) J . . . . . . . 19 v 3.5 Summary of The Proposed Algorithm . . . . . . . . . . . . . . . . . . . 22 4 Identifiability and Computational Complexity of The Proposed Methods 23 4.1 The Necessary Conditions of The Proposed Method . . . . . . . . . . . . 23 4.2 System Computational Complexity . . . . . . . . . . . . . . . . . . . . . 24 4.3 Comparison of The Proposed Method and Previously Reported Methods . 25 5 Simulation Results 27 6 Conclusions 40 Bibliography 42 vi | |
dc.language.iso | en | |
dc.title | 在塊狀時空碼補零系統下基於子空間方法使用少數接收區塊之新盲通道估測演算法 | zh_TW |
dc.title | A Novel Subspace-based Blind Channel Estimation Algorithm in Space-Time Block Coded Zero-padded Systems with Few Received Blocks | en |
dc.type | Thesis | |
dc.date.schoolyear | 101-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 馮世邁,林士駿 | |
dc.subject.keyword | 盲通道估測,子空間方法,塊狀時空碼,子載波,正交分頻多工, | zh_TW |
dc.subject.keyword | Blind channel estimation,Subspace method,Space-Time block code,single carrier,OFDM, | en |
dc.relation.page | 43 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2013-08-13 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 電信工程學研究所 | zh_TW |
顯示於系所單位: | 電信工程學研究所 |
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