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Volume 26 Issue 11
Nov.  2004
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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.

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

  • Received Date: 2003-06-15
  • Rev Recd Date: 2003-12-05
  • Publish Date: 2004-11-19
  • The tradeoff between performance and complexity must he taken into account in channels estimation algorithm of wireless OFDM systems. This paper proposes a new algorithm for channel estimation in wireless OFDM systems, which aims at reducing the conventional algorithm complexity by using Wiener filtering combined with interpolation filtering. The analysis and simulation results show that the novel algorithm reduces the complexity remarkably with performance slightly degraded.
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  • 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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