請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/27942
完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 張進福 | |
dc.contributor.author | Hsiu-Cheng Cheng | en |
dc.contributor.author | 鄭旭城 | zh_TW |
dc.date.accessioned | 2021-06-12T18:29:14Z | - |
dc.date.available | 2007-08-28 | |
dc.date.copyright | 2007-08-28 | |
dc.date.issued | 2007 | |
dc.date.submitted | 2007-08-03 | |
dc.identifier.citation | [1] J. Irvine, J. –P. Couvy, F. Graziosi, J. Laurila, G. Mossakowski and P. Robin, “System architecture for the MOSTRAIN project (mobile services for high speed trains)”, VTC 1997 IEEE 47th Volume 3, pp. 1917-1921, 1997
[2] S. Sibecas, C. A. Corral, S. Emami and G. Stratis, “On the suitability of 802.11a/RA for high-mobility DSRC”, VTC 2002-spring IEEE 55th Volume 1, pp. 229-234, 2002 [3] J. Irvine, D. Robertson and J. Dunlop, ”The MOSTRAIN (Mobile Services for High Speed Trains) System Demonstrator”, Personal Indoor and Mobile Radio Communications Volume 2, pp.1004-1008 vol.2, Ninth IEEE International Symposium on, 1998 [4] Göller, M, “Application of GSM in High Speed Trains: Measurements and Simulations”, IEE Colloquium Record, 95/15, pp. 5/1-7, 1995. [5] Henry L. Bertoni, Walter Honcharenko, Leandro Rocha Maciel, Howard H. Xia, “UHF Propagation for Wireless Personal Communications”, Proceedings of the IEEE, Volume 82, Issue 9, pp1333-59, September 1994. [6] F. Abrishamkar, J. Irvine, “Comparison of Current Solutions for Provision of Voice Services to Passengers on High Speed Trains”, VTC 2000 52nd Volume 5, pp. 2068 – 2075, 2000 [7] Theodore S. Rappaport, “Wireless Communications: Principles and Practice”, 2nd Edition, Prentice Hall PTR, 2002 [8] ETSI TR 25.943 V5.1.0 [9] http://www.thsrc.com.tw/ [10] IEEE Std 802.16-2004 [11] P. Robertson and S. Kaiser, “Analysis of the loss of orthogonality through Doppler spread in OFDM symbols”, IEEE GLOBECOM ’99 Volume 1B, pp. 701-706, 1999 [12] T. Pollet, M. Van Bladel and M. Moeneclaey, “BER sensitivity of OFDM systems to carrier frequency offset and Wiener phase noise”, IEEE Transactions on Communications, Volume 43, Issue 234, pp. 191-193, Feb./March/April 1995 [13] Necker, M.C., Stuber, G.L., “Totally blind channel estimation for OFDM on fast varying mobile radio channels”, Wireless Communications, IEEE Transactions on, Volume 3, Issue 5, pp. 1514-1525, Sept. 2004 [14] Ye Li, “Pilot-symbol-aided channel estimation for OFDM in wireless systems”, VTC, IEEE Transactions on, Volume 49, Issue 4, pp. 1207-1215, 2000 [15] F. Tufvesson and T. Maseng, “Pilot assisted channel estimation for OFDM in mobile cellular systems,” VTC, IEEE 47th Volume 3, pp. 1639-1643 vol.3, 4-7 May, 1997 [16] Meng-Han Hsieh, Che-Ho Wei, “Channel estimation for OFDM systems based on comb-type pilot arrangement in frequency selective fading channels,” Consumer Electronics, IEEE Transactions on, Volume 44, Issue 1, pp. 217-225, Feb. 1998 [17] K. Arshad, A.U.H. Sheikh, “Effect of Doppler frequency on pilot arrangements in wireless OFDM systems,” Information and Communication Technologies: From Theory to Applications, Proceedings, 2004 International Conference on, pp. 261-263, 19-23 April 2004 [18] 802.16e-2005 and IEEE Std 802.16-2004/Cor1-2005 [19] R. Mersereau, T. Speake, “The processing of periodically sampled multidimensional signals,” Acoustics, Speech, and Signal Processing, IEEE Transactions on, Volume 31, Issue 1, pp. 188-194, 1983 [20] Ye Li, “Pilot-symbol-aided channel estimation for OFDM in wireless systems,” Vehicular Technology, IEEE Transactions on, Volume 49, Issue 4, pp. 1207-1215, July 2000 | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/27942 | - |
dc.description.abstract | 隨著無線通訊與高速鐵路的迅速興起,在高鐵環境提供高傳輸速率的需求也跟著增加。OFDM技術由於對符碼間干擾有較高的抵抗力而能達到較高的資料速率,近來獲得廣泛的研究,包括IEEE 802.11與IEEE 802.16等標準皆將其納入最新的規範當中。而在不同的都卜勒頻率之下,利用導航符號協助之通道估測法的準確度將與導航符號的排列方式息息相關。本論文將首先描述導航符號排列方式對不同都卜勒頻率的影響,並透過模擬顯示802.16系統參數在高速移動下的效能表現。接著根據取樣定理與通道參數,我們設計一種新的導航符號排列方式並與傳統的802.16訊框格式比較。最後,我們利用鐵路環境可預測的特性試著增加系統效能。 | zh_TW |
dc.description.abstract | With the rapid growth of wireless communications and high speed rail, the need for high speed data transmission in high speed train environment is increased. Orthogonal Frequency Division Multiplexing (OFDM) is recently becoming very popular for achieving high data rates due to its resistance to ISI. OFDM has also been chosen as the transmission method for many standards, such as the IEEE 802.11 and 802.16. The accuracy of pilot-aided channel estimation at a desired Doppler frequency is highly dependent on how the pilots are arranged. In this paper, we describe the effect of Doppler frequency on different pilot arrangements in wireless OFDM systems and simulate the performance using the parameters of the IEEE 802.16 standard in high mobility environment. According to sampling theorem and channel parameters, we propose a new pilot insertion scheme and compare it with conventional 802.16 frame format. In the end, we use characterization of rail environment to improve system performance. | en |
dc.description.provenance | Made available in DSpace on 2021-06-12T18:29:14Z (GMT). No. of bitstreams: 1 ntu-96-R94942105-1.pdf: 1399079 bytes, checksum: 8fbd7b4096581bd7b4b3257dee24fcef (MD5) Previous issue date: 2007 | en |
dc.description.tableofcontents | 誌謝........................................................i
中文摘要..................................................iii 英文摘要....................................................v 第一章 緒論................................................1 1.1前言.............................................1 1.2研究背景.........................................2 1.3鐵路環境無線連結的方式...........................4 1.3.1單鏈架構...............................4 1.3.2雙鏈架構...............................6 1.4基礎建設規劃.....................................8 1.4.1通訊環境...............................8 1.4.2遮蔽效應...............................9 1.4.3都卜勒效應............................................10 1.4.4細胞規劃..............................11 1.5總結....................................................13 第二章 高速移動環境對OFDM系統的影響.......................17 2.1 前言...................................................17 2.2 通道模型.......................................17 2.3 通道參數.......................................22 2.3.1 時間擴散與同調頻寬...................22 2.3.2 都卜勒效應與同調時間.................23 2.4 正交分頻多工系統簡介...........................23 2.5 OFDM系統的次載波間干擾.........................28 2.6 不同pilot排列方式對效能的影響..................30 2.7 結論...........................................37 第三章 高速鐵路環境下802.16d/e頁框格式效能之分析...........39 3.1 前言...........................................39 3.2 802.16簡介.....................................40 3.3 IEEE 802.16d/e實體層標準介紹...................41 3.4 802.16d/e WirelessMAN-OFDM正交分頻多工實體層簡介.........................................................42 3.5 IEEE 802.16d/e訊框格式在高速移動下之效能.......47 3.6 提出的改善方法.................................48 3.7 相位調整.......................................53 3.8 結論...........................................57 第四章 高速鐵路環境的可預測性..............................61 4.1 前言...................................................61 4.2 都卜勒頻率的可預測性...........................61 4.3 相位旋轉的可預測性.............................65 4.4 通道完全已知...................................66 4.5 結論...........................................67 第五章 全文總結與未來展望..................................69 5.1 總結...................................................69 5.2 未來的研究方向.................................70 參考文獻...................................................73 | |
dc.language.iso | zh-TW | |
dc.title | 在高速鐵路環境下使用802.16正交分頻多工系統訊框格式之研究 | zh_TW |
dc.title | A Study on Frame Format for 802.16d/e OFDM System in High Speed Train Environment | en |
dc.type | Thesis | |
dc.date.schoolyear | 95-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 鐘嘉德,魏學文,黃政吉 | |
dc.subject.keyword | 高速鐵路,OFDM,802.16,導航符號排列方式,鐵路環境特性, | zh_TW |
dc.subject.keyword | high speed rail,OFDM,802.16,pilot arrangement,characterization of rail environment, | en |
dc.relation.page | 75 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2007-08-06 | |
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-96-1.pdf 目前未授權公開取用 | 1.37 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。