| 研究生: |
周明宗 Ming-Tsung Chou |
|---|---|
| 論文名稱: |
循環字首及補零正交分頻多工系統在時序同步上之效能比較 The Performance Comparison of CP-OFDM and ZP-OFDM on Timing Synchronization |
| 指導教授: |
魏瑞益
Ruey-Yi Wei 鐘嘉德 Char-Dir Chung |
| 口試委員: | |
| 學位類別: |
碩士 Master |
| 系所名稱: |
資訊電機學院 - 通訊工程學系 Department of Communication Engineering |
| 畢業學年度: | 94 |
| 語文別: | 中文 |
| 論文頁數: | 62 |
| 中文關鍵詞: | 時間偏移 、補零字首正交分頻多工 、循環字首正交分頻多工 、時序同步 |
| 外文關鍵詞: | Time, CP-OFDM, ZP-OFDM, Timing Synchronization |
| 相關次數: | 點閱:11 下載:0 |
| 分享至: |
| 查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報 |
本論文將針對循環字首正交分頻多工(Cyclic Prefix-OFDM)與補零正交分頻多工(Zero Padding-OFDM)系統,在時序同步(Time Synchronization)下的問題探討;由於時序偏移將造成符元間干擾(ISI),影響系統效能;我們將選用4種演算法估測時序偏移量,並針對CP-OFDM與ZP-OFDM的效能來比較。
The thesis takes a discussion on timing synchronization in cyclic-prefix Orthogonal Frequency Division Multiple (CP-OFDM) and Zero-padding Orthogonal Frequency Division Multiple(ZP-OFDM) systems.Time offset causes initer symbol interference(ISI) such that performance of the system attenuates.We will estimate time offset by using four different algorithms and comparison the performance of CP-OFDM and ZP-OFDM.
【1】 Muquent, B; Zhengdao Wang ; Giannakis , G.B.;de Courville, M.; Duhamel, P. ’’Cyclic prefixing or zero padding for wireless multicarrier transmissions?’’ IEEE Trans. Commun., vol. 50, Dec. 2002
【2】 K. Fazel, S. Kaiser. ’’Multi-Carrier and Spread Spectrum System.’’ England, 2003.
【3】 J . van de Beek, M. Sandell and P. O. Ba;rjason, ;‘’ML Estimation of Time and Frequency Offset in OFDM System,’’IEEE fins. Sig. Proc., vol. 45, pp.1800-1805., July 1997.
【4】 J.J. van de Beek, M. Sandell, M. Isaksson and P.O. Borjesson, "Low-Complex Frame Synchronization in OFDM Systems," IEEE Int. Conf. Uniuersal Personal Commun., pp. 982-986., Nov. 1995.
【5】 Gunther, J.H.; Hui Liu; Swindlehurst, A.L. ’’A new approach for symbol frame synchronization and carrier frequency estimation in OFDM communications,’’ IEEE Int. Conf. vol. 5, pp. 2725-2728., March 15-19 1999.
【6】 T. M. Schmidl and D. C. Cox, “Robust frequency and timing synchronization for OFDM,” IEEE Trans. Commun., vol. 45, pp. 1613–1621., Dec. 1997.
【7】 H. Minn,M. Zeng, and V. k. Bhargava, ;‘’On timing offset estimation for OFDM systems,’’ IEEE Commun. Letters, vol. 4, pp. 242-244., July 2000.
【8】 Guangliang Ren; Yilin Chang; Hui Zhang; Huining Zhang;Broadcasting, ’’Synchronization method based on a new constant envelop preamble for OFDM systems,’’; IEEE Trans. Broad., Vol. 51, pp. 139-143. March 2005.
【9】 Garcia, M.J.F.-G.; Paez-Borrallo, J.M.;Consumer Electronics , ‘’Tracking of time misalignments for OFDM systems in multipath fading channels,’’, IEEE Trans. Consumer Electronics, vol. 48, pp.982-989., Nov. 2002.
【10】 P. Hoher, S. Kasier and P. Robertson, ‘’Two-dimensional Pilot-symbol-aided channel estimation by wiener filtering,’’ IEEE Int. Conf. , vol. 3, pp.1845-1848., April 21-24 1997.
【11】 Chin-Liang Wang; Ming-Hsuan Chiang; Hung-Chin Wang, ’’A new synchronization scheme for OFDM systems,’’ Veh. Tech. Confer., Vol. 2, pp.1100-1104., May17-19. 2004.
【12】 J. J. van de Beek, M. Sandell, and P. O. Borjesson, ‘’ML estimation of time and frequency offset in OFDM systems.’’ IEEE Trans. Signal Processing, vol. 45, pp.1800-1805., July 1997.
【13】 M.J. Femandez-Getino Garcia, J. M. Paez-Borrallo, and S. Zazo, ’’DFT-based channel estimation in 2D-pilot-symbol-sided OFDM wireless systems,’’ IEEE Veh. Technol. Conf. , vol. 2, pp. 810-814., May 2001.