請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/49167
完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 林茂昭 | |
dc.contributor.author | Meng-Hsun Yu | en |
dc.contributor.author | 余孟勳 | zh_TW |
dc.date.accessioned | 2021-06-15T11:18:02Z | - |
dc.date.available | 2019-11-02 | |
dc.date.copyright | 2016-11-02 | |
dc.date.issued | 2016 | |
dc.date.submitted | 2016-08-19 | |
dc.identifier.citation | [1] H. Shoeneich and P. A. Hoeher, “Adaptive interleave-division multiple access –potential air interface for 4g bearer services and wireless lans,” WOCN, June 2004.
[2] K. W. L. Ping, L. Liu and W.K. Leung, “Interleave-division multiple access,” IEEE Trans. Wireless Commun., vol. 5, p.938-947, April 2006. [3] Aasheesh Shukla,Dheeraj Purwar ,and Dileep Kumar, “Multiple Access Scheme for Future (4G) Communication: A Comparison Survey”, ISDMISC, 2011. [4] L. Ping, 'Interleave-division multiple access and chip-by-chip iterative multi-user detection,' IEEE Commun. Magazine, pp. S19-S23, 2005. [5] Selvakumar G. , Shanthi M. , “IDMA based Communication for Next Generation (4G)” , ICVCI, 2011. [6] Kiran Khurshid , Imtiaz Ahmed Khokhar , “Comparison Survey of 4G Competitors”, ICASE, 2013. [7] P. Hoeher and F. Tufvesson, “Channel estimation with superimposed pilot sequence,” in IEEE Globecom 1999, Rio de Janeiro, Brazil, Dec. 1999. [8] S. Kay, Fundamentals of Statistical Signal Processing, Volume I: Esti- mation Theory. Prentice Hall, 1993. [9] Bathiya Senanayake, Mark C. Reed, Zhenning Shi, “Iterative timing recovery for IDMA receivers operating under severe timing drift”, Communications Theory Workshop (AusCTW), 2010 Australian [10] B. Senanayake, M. C. Reed, Z. Shi, “Timing Acquisition for Multi-User IDMA,” 2008 IEEE International Conference on Communications, May 2008. [11] Hui-Xiao Ma, Xiu-Hong Wang, Gong-Liang Liu, Xing-Peng Mao, “Time Acquisition of IDMA System in Low SNR Environment,” 2009 5th International Conference on Wireless Communications, Networking and Mobile Computing, Sept. 2009. [12] Wang Xiu-Hong, Mao Xing-Peng, Ma Hui-Xiao, Liu Gong-Liang, Wu Ping, “An interleaver acquisition scheme in asynchronous IDMA systems,” IWCMC '10 Proceedings of the 6th International Wireless Communications and Mobile Computing Conference, 2010. [13] H. Schoeneich and P. A. Hoeher, “Semi-blind pilot-layer aided channel estimation with emphasis on interleave-division multiple access systems,” IEEE Globecom 2005, St. Louis, Mo, USA, Nov. 2005. [14] P. Hoeher and F. Tufvesson, 'Channel estimation with superimposed pilot sequence,' Proc. IEEE GLOBECOM '99, (Rio de Janeiro, Brazil), pp. 2162-2166, Dec. 1999. [15] Zhou, Xiangyun; Shi, Zhenning; Reed, Mark C. 'Iterative Channel Estimation for IDMA Systems in Time-Varying Channels', Global Telecommunications Conference, 2007. GLOBECOM '07. IEEE, pp4020 – 4024. [16] Chia-Fu Chang, Yen-Ching Liu, Meng-Hsun Yu, Mao-Chao Lin, A Joint Design of Timing Tracking and Channel Estimation for IDMA Receivers, 2016 [17] U. Mengali and A. N. D’Andrea, Synchronization techniques for digital receiver, Springer, 1997. [18] L. Ping and L. Liu, 'Analysis and Design of IDMA Systems Based on SNR Evolution and Power Allocation,' Vehicular Technology Conference, vol. 2, pp. 1068-1072, September 2004. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/49167 | - |
dc.description.abstract | 交織多重接取系統是近年來一項類似分碼多重接取系統的嶄新的多重接取技術,顧名思義每位使用者使用不同的交織器來區分彼此;相對於分碼多重接取系統在多用戶偵測器的高複雜度,交織多重接取系統使用Chip-by-chip演算法具有線性的低複雜度;且交織多重接取系統使用疊代解碼演算法,每位使用者在解碼的同時也會幫助彼此使效能更加精確;在本篇論文中,我們結合了通道估測及時序偏移估測使系統在同一次疊代中進行通道估測及時序偏移估測。
時序偏移估測可以分成粗調及微調;在通道估測跟時序微調的實作中我們借助了嵌入式領航訊號來使系統更快收斂且不會浪費多餘的頻寬,我們同樣使用Chip-by-chip演算法來做這兩項估測,使得它們同樣具有低複雜度的性質;在時序微調中我們使用鎖相迴路來抓到正確的時序偏移,而在時序粗調中使用了類似分碼多重接取系統的相關器來使用者的交織器可以跟使用者的訊號同步;共同設計時,因為三種估測是彼此獨立運作的,因此保有了各自的優缺點及演算法。 | zh_TW |
dc.description.abstract | Interleave Division Multiple Access system, IDMA, proposed in recently year is a multiple access technique similar to CDMA. As its names, It uses user-specific interleave to distinguish one user’s signal from others. Comparing with the high complexity when CDMA do multi-user detection, IDMA system applies Chip-by-chip algorithm and thus has the linearly complexity. Moreover IDMA system uses iterative decoding algorithm, which makes each user can help each other become more accurate and more reliable when decoding. In this thesis, we combine channel estimation and timing estimation into one system, such that during each iteration, the system can do both channel estimation and timing estimation.
Timing estimation can be subdivided into course estimation, Acquisition and fine estimation, Tracking. In the realization of channel estimation and timing tracking, we employ embedded pilot signal to make the system become convergence more quickly and don’t waste another bandwidth. We apply chip-by-chip algorithm to do these two estimation which makes them have the property of the same low-complexity. In timing tracking, delayed-locked loop is used to catch the true timing drift, whereas in timing acquisition, we uses correlator method similar to CDMA to make the user’s interleaver can be synchronous with user’s data. When joint design, they remain their own advantage, disadvantage and algorithm because these three estimation is operating independently to each other. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T11:18:02Z (GMT). No. of bitstreams: 1 ntu-105-R02942103-1.pdf: 2803440 bytes, checksum: 5256a9f93f5aa4709dcea52845b19933 (MD5) Previous issue date: 2016 | en |
dc.description.tableofcontents | 中文摘要 ……………………………………………………………………………...i
Abstract ……………………………………………………………...........ii Contents …………………………………………………………………..iv List of Figures …………………………………………………………...vii 1 Introduction ……………………………………………………. 1 2 Interleave Division Multiple Access System .………………… 5 2.1 IDMA System Structure .………………………………… 5 2.2 The Iterative Decoding Algorithm ……………………… 7 2.2.1 The ESE function for Real Channel ……………..7 2.2.2 The ESE function for Complex Channel ………..10 2.2.3 The DEC function ………………………………... 13 2.3 Simulation Result ………………………………………… 15 3 Interleave Division Multiple Access System with Channel Estimation ………………………………………………………17 3.1 Introduction ……………………………………………....17 3.2 System model ……………………………………………..18 3.2.1 Transmitter with Pilot Signal ……………………18 3.2.2 Receiver with Channel Estimators ………………19 3.3 Algorithm of Channel Estimation for IDMA systems ….21 3.3.1 Channel Estimator ……………………………….21 3.3.2 ESE ………………………………………………..22 3.4 Simulation Results ………………………………………..23 3.5 Concluding Remarks ……………………………………..24 4 Interleave Division Multiple Access System with Timing Tracking …………………………………………………………31 4.1 Introduction ………………………………………………31 4.2 System Model ……………………………………………..32 4.2.1 Transmitter ………………………………………..32 4.2.2 Receiver …………………………………………...33 4.2.3 Delayed-locked Loop, DLL ……………………....38 4.3 Simulation Result …………………………………………40 5 Interleave Division Multiple Access System with Timing Acquisition ………………………………………………………45 5.1 Introduction ………………………………………………45 5.2 System Model ……………………………………………..46 5.2.1 Non-iterative Acquisition ………………………...48 5.2.2 Iterative Acquisition ……………………………...50 5.3 Simulation Result …………………………………………51 5.4 Conclusion ………………………………………………...52 6 Joint Design of Channel Estimation and Timing Acquisition and Tracking for Interleave Division Multiple Access System. 57 6.1 System Model ……………………………………………..57 6.1.1 Transmitter ………………………………………..57 6.1.2 Receiver …………………………………………...59 6.2 Simulation Result …………………………………………60 7 Conclusion and Future Work ………………………………….69 7.1 Conclusion ………………………………………..69 7.2 Future Work ……………………………………...70 Bibliography ………………………………………………………... 71 | |
dc.language.iso | en | |
dc.title | 交織多重接取系統之通道估測及時序偏移估測之共同設計 | zh_TW |
dc.title | Joint design of Channel Estimation,
Timing Acquisition and Tracking for IDMA system | en |
dc.type | Thesis | |
dc.date.schoolyear | 104-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 呂忠津,趙啟超,蘇育德,蘇賜麟 | |
dc.subject.keyword | 交織多重接取,通道估測,時序粗調,時序微調,共同設計, | zh_TW |
dc.subject.keyword | Interleave Division Multiple Access,Channel Estimation,Timing Acquisition,Timing Tracking,Joint Design, | en |
dc.relation.page | 73 | |
dc.identifier.doi | 10.6342/NTU201602758 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2016-08-20 | |
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 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
ntu-105-1.pdf 目前未授權公開取用 | 2.74 MB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。