A difference of absolute value based timing metric for timing synchronization in OFDM system

  • Authors

    • Anuja Das
    • Biswajit Mohanty
    • Benudhar Sahu
    2018-06-08
    https://doi.org/10.14419/ijet.v7i2.33.15544
  • OFDM, Timing Metric, Symbol Timing Synchronization, Differential Absolute Value.

  • Abstract

    Traditional time synchronization schemes are based on autocorrelation between identical parts of the reference OFDM symbol. However, the time metric of the traditional schemes have a plateau or significant quantity of side lobe. This results in a poor timing synchronization performance. In this paper we are proposing a modified timing metric based on difference of absolute value as a normalized factor. The timing synchronization based on the modified timing metric reduces side lobe and improves the timing synchronization performance.

     

     

  • References

    1. [1] L. J. Cimini , Jr., “Analysis and simulation of a digital mobile channel using orthogonal frequency division multiplexing,†IEEE Trans. Commun., Jul. 1985, vol. COM-33, no. 7, pp. 665–675

      [2] S. Weinstein and P. Ebert, “Data transmission by frequency-division multiplexing using the discrete Fourier transform,†IEEE Trans. Commun.Technol.Oct. 1971, vol. COM-19, no. 5, pp. 628–634.

      [3] Thomas keller and lajoshanzo,†adaptive multicarrier modulation: a convenient Framework for time-frequency processing in Wireless communicationsâ€, IEEE proceedings of the IEEE, May 2000, vol. 88, no. 5.

      [4] M. Speth, S. Fechtel, G. Fock, and H. Meyr. Optimum Receiver Design for Wireless Broadband Systems Using OFDM - Part I. IEEE Trans. On Comm., November 1999, 47(11):1668–1677.

      [5] HamedAbdzadeh-Ziabari and Mahrokh G. Shayesteh.†Robust Timing and Frequency Synchronization for OFDM Systems,†IEEE Transactions on vehicular technology, October 2011, vol. 60, no. 8.

      [6] T. M. Schmidl and D. C. Cox, “Robust frequency and timing synchronization for OFDM,†IEEE Trans. Commun., Dec. 1997 vol. 45, pp. 1613–1621.

      [7] H. Minn, M. Zeng, and V. K. Bhargava, “On timing offset estimation for OFDM systems,†IEEE Commun. Lett., July 2000, vol. 4, pp. 242–244.

      [8] B. Park, H. Cheon, C. Kang, and D. Hong, “A novel timing estimation method for OFDM systems,†IEEE Commun. Lett., May 2003, vol. 7, pp. 239–241.

      [9] Guangliang Ren, Y chang, Hui Zhang, and H Zhang,’Synchronization Method Based on a New Constant Envelope Preamble for OFDM System,†vol. 51, no.1, pp. 139-143, March 2005.

      [10] Y. Kang, S. Kim, D. Ahn, H. Lee, "Timing estimation for OFDM systems by using a correlation sequence of preamble", IEEE Trans. Consumer Electronics, vol. 54, no. 4, pp. 1600-1608, Nov. 2008.

      [11] B. Sheng, J. Zheng, X. You, L. Chen, “A Novel Timing Synchronization Method for OFDM Systemsâ€, IEEE Communications Letters,Vol. 14, NO. 12, December 2010.

      [12] H.A.Ziabari, M . G. Shayesteh, M . Manaffar, “An Improved Timing Estimation Method For OFDM Systems†, IEEE Trans. Consumer Electronics, vol. 56, No. 4, Nov. 2010.

      [13] H.A.Ziabari, M. G. Shayesteh, M. Manaffar, “A Novel Preamble-Based Frame Timing Estimator for OFDM Systemsâ€, IEEE Communications Letters,Vol. 16, NO. 7, JULY- 2012.

      [14] B. Sahu, Saswat Chakrabarti, S. L. Maskara, “A New Timing Synchronization Metric for OFDM Based WLAN Systemsâ€, Springer Wireless Personal Commun. (2010) 52:829–8.

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  • How to Cite

    Das, A., Mohanty, B., & Sahu, B. (2018). A difference of absolute value based timing metric for timing synchronization in OFDM system. International Journal of Engineering & Technology, 7(2.33), 973-977. https://doi.org/10.14419/ijet.v7i2.33.15544

    Received date: 2018-07-13

    Accepted date: 2018-07-13

    Published date: 2018-06-08