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OFDM系統(tǒng)中一種新的導頻輔助信道估計算法

王建新 周鵬 花漢兵

王建新, 周鵬, 花漢兵. OFDM系統(tǒng)中一種新的導頻輔助信道估計算法[J]. 電子與信息學報, 2004, 26(11): 1805-1811.
引用本文: 王建新, 周鵬, 花漢兵. OFDM系統(tǒng)中一種新的導頻輔助信道估計算法[J]. 電子與信息學報, 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系統(tǒng)中一種新的導頻輔助信道估計算法

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

  • 摘要: 無線OFDM系統(tǒng)中基于導頻輔助的信道估計必須折衷考慮算法性能與算法復雜度。該文提出了一種新的信道估計算法。新算法利用維納濾波與內(nèi)插濾波相結合以降低信道估計的運算復雜度。分析和仿真結果顯示,新算法在保持獲得良好估計性能情況下,有效地降低了信道估計算法的復雜度。
  • 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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出版歷程
  • 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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