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OFDM系统中一种新的导频辅助信道估计算法

王建新 周鹏 花汉兵

王建新, 周鹏, 花汉兵. OFDM系统中一种新的导频辅助信道估计算法[J]. 电子与信息学报, 2004, 26(11): 1805-1811.
引用本文: 王建新, 周鹏, 花汉兵. OFDM系统中一种新的导频辅助信道估计算法[J]. 电子与信息学报, 2004, 26(11): 1805-1811.
Wang Jian-xin, Zhou Peng, Hua Han-bing. A Novel Algorithm for Pilot-Aided Channel Estimation in OFDM Systems[J]. Journal of Electronics & Information Technology, 2004, 26(11): 1805-1811.
Citation: Wang Jian-xin, Zhou Peng, Hua Han-bing. A Novel Algorithm for Pilot-Aided Channel Estimation in OFDM Systems[J]. Journal of Electronics & Information Technology, 2004, 26(11): 1805-1811.

OFDM系统中一种新的导频辅助信道估计算法

A Novel Algorithm for Pilot-Aided Channel Estimation in OFDM Systems

  • 摘要: 无线OFDM系统中基于导频辅助的信道估计必须折衷考虑算法性能与算法复杂度。该文提出了一种新的信道估计算法。新算法利用维纳滤波与内插滤波相结合以降低信道估计的运算复杂度。分析和仿真结果显示,新算法在保持获得良好估计性能情况下,有效地降低了信道估计算法的复杂度。
  • Cavers J K. An analysis of pilot-symbol assisted modulation for R ayleigh-fading channels[J].IEEE Trans. on Veh. Tech.1991, 40(4):686-693[2]Hoeher P, Kaiser S, Robertson P. Pilot-symbol-aided channel estimation in time and frequency.Proc IEEE GLOBECM97, Phoenix, Nov. 1997: 90-96.[3]Hoeher P, Kaiser S, Robertson P. Two-dimensional pilot-symbol-aided channel estimation by Wiener filtering. Proc. ICASSP-97, Munich, Germany, Apr. 1997: 1845-1848.[4]Van D B, Edfors O, Sandle M. On channel estimation in OFDM systems. Proc IEEE Veh. Tech.Conf., Chicago, IL, July 1995: 815-819.[5]Edfors O, Sandle M, Van D B. OFDM Channel estimation by singular value decomposition. IEEE Trans. on Comm., 1998, COM-46(7): 931-939.[6]Cimini L J. Analysis and simulation of a digital mobile channel using orthogonal frequency division multiplexing. IEEE Trans. on Comm., 1985, COM-33(7): 665-675.[7]Coleri S, Ergen M, Puri A C. Channel estimation techniques based on pilot arrangement in OFDM systems. IEEE Trans. on Broadcasting, 2002, BC-48(3): 223-229.[8]Sgraja C, Lindner J. Estimation of rapid time-variant channels for OFDM using Wiener filtering.IEEE ICC2003, Alaska, USA, May 2003: 2390-2395.[9]Proakis J G. Digital Communication. 3th Edition, Englewood Cliffs, NJ, Prentice-Hall, 1995:686-689.[10]Zhao Y, Huang A. A novel channel estimation method for OFDM mobile communications systems based on pilot signals and transform domain processing. Proc. IEEE 47th Vehicular Technology Conf., Phoenix, USA, May 1997: 2089-2093.[11]Hsieh M, Wei C. Channel estimation for OFDM systems based on comb-type pilot arrangement in frequency selective channels[J].IEEE Trans. on Consumer Electron.1998, 44(1):217-225[12]Sandel M, Edfors O. A comparative study of pilot-based channel estimators for wireless OFDM.Div. of Signal Processing, Lulea Univ. of Technology, Lulea, Sweden, Tech. Rep., Sep 1996.
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出版历程
  • 收稿日期:  2003-06-15
  • 修回日期:  2003-12-05
  • 刊出日期:  2004-11-19

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