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Transmission Efficient Channel Estimation for OFDM System Under Multi-path Fast Fading Channel

Abstract

This paper considers the channel estimation method in the case of a high mobility communication in orthogonal frequency-division multiplexing (OFDM) systems. In this paper, several successive OFDM symbols experienced channel are treated as a window. The polynomial approximation of the channel parameters in the time domain is considered. We show that the low order polynomials are good enough to model the channel within a window. Hence the interpolation performing over a whole window profits pilot reduction. Moreover, the method has an advantage of computational complexity because of the low order polynomial approximation and without the requirement of inter-carrier interference mitigation. The method is derived with the least-square approach for polynomial interpolation of arbitrary order. Simulation results show that the proposed method is robust to high Doppler frequency and enhancing the transmission efficiency.

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References

  1. Li, Y., & Cimini, L. J. (2001). Bounds on the interchannel interference of OFDM in time varying impairments. IEEE Transactions on Communications, 49(3), 401–404.

    MATH  Article  Google Scholar 

  2. Chen, S., & You, T. (2004). Intercarrier interference suppression and channel estimation for OFDM systems in time-varying frequency-selective fading channels. IEEE Transactions on Consumer Electronics, 50(2), 429–435.

    MathSciNet  Article  Google Scholar 

  3. Tong, L., Sadler, B., & Dong, M. (2004). Pilot-assisted wireless transmissions: general model, design criteria, and signal processing. IEEE Signal Processing Magazine, 21(6), 12–25.

    Article  Google Scholar 

  4. Mostofi, Y., & Cox, D. (2005). ICI mitigation for pilot-aided OFDM mobile system. IEEE Transactions on Wireless Communications, 4(2), 765–774.

    Article  Google Scholar 

  5. Liu, G., Zhidkov, S. V., Li, H., et al. (2012). Low-complexity iterative equalization for symbol-reconstruction-based OFDM receivers over doubly selective channels. IEEE Transactions on Broadcasting, 58(3), 390–400.

    Article  Google Scholar 

  6. Tang, Z., Leus, G., & Banelli, P. (2006). Pilot-assisted time-varying OFDM channel estimation based on multiple OFDM symbols. Proceedings of the IEEE SPAWC Cannes: Signal Processing Advances in Wireless Communications,. doi:10.1109/SPAWC.2006.346364.

    Google Scholar 

  7. Hijazi, H., & Ros, L. (2009). Polynomial estimation of time-varying multipath gains with intercarrier interference mitigation in OFDM systems. IEEE Transactions on Vehicular Technology, 58(1), 140–151.

    Article  Google Scholar 

  8. Zhou, W., & Lam, W. H. (2010). Channel estimation and data detection for OFDM systems over fast-fading and dispersive channels. IEEE Transactions on Vehicular Technology, 59(3), 1381–1392.

    MathSciNet  Article  Google Scholar 

  9. Stamoulis, A., Diggavi, S. N., & Al-Dhahir, N. (2002). Intercarrier interference in MIMO-OFDM. IEEE Transactions on Signal Processing, 50(10), 2451–2464.

    Article  Google Scholar 

  10. Fujita, T., Ohta, A., Onizawa, T., et al. (2005). A reduced-complexity signal detection scheme employing ZF and K-best algorithms for OFDM/SDM. IEICE Transactions on Communications, E88-B(1), 66–75.

    Article  Google Scholar 

  11. COST 207 Management Committee. (1989). COST 207: Digital land mobile radio communications. Bruxelles: Commission of the European Communication.

    Google Scholar 

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Acknowledgments

This work was partially supported by the Ministry of Science and Technology of the Taiwan, ROC (Grant No. NSC 103-2218-E-539 -001).

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Correspondence to Yih-Haw Jan.

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Jan, YH. Transmission Efficient Channel Estimation for OFDM System Under Multi-path Fast Fading Channel. Wireless Pers Commun 84, 1561–1575 (2015). https://doi.org/10.1007/s11277-015-2703-9

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  • DOI: https://doi.org/10.1007/s11277-015-2703-9

Keywords

  • Channel estimation
  • OFDM
  • Fast time-varying channel
  • Transmission efficiency
  • Low computational complexity