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Wireless Personal Communications

, Volume 97, Issue 3, pp 3301–3327 | Cite as

Performance Evaluation of Timing Estimation Technique Using Extended Cyclic Prefix for Correlation Sequence for OFDM Systems

  • Sandeep ShuklaEmail author
  • Vijay Shanker Tripathi
Article

Abstract

This paper presents an analysis of symbol timing offset (STO) estimation method for orthogonal frequency division multiplexing systems. The proposed method does not require any preamble and with the use of available cyclic prefix (CP) samples we have proposed an extended CP. The extended CP is used to exploit more number of correlation products in correlation sequence so that a more accurate starting point of any symbol can be estimated. A simplified maximum likelihood estimation process for proposed timing estimation technique is given which enables us much more accurate timing estimate due to decreased error variance. The performance of the proposed method is evaluated in terms of mean square error of timing estimator against different signal to noise ratio values and in terms of error distribution of the estimators with and without the effect of carrier frequency offset in various channel scenarios such as AWGN, HIPERLAN/2A and HIPERLAN/2E. Simulation results shows that proposed method has significantly better performance compared to the CP based method for STO estimation.

Keywords

OFDM STO CFO MLE 

References

  1. 1.
    van Nee, R., & Prasad, R. (2000). OFDM for wireless multimedia communications. Norwood: Artech House.Google Scholar
  2. 2.
    Wilkinson, T., Phipps, T. G. C., & Barton, S. K. (1995). A report on HIPERLAN standardization. International Journal of Wireless Information Networks, 2(2), 99–120.CrossRefGoogle Scholar
  3. 3.
    Cho, Y. S., Kim, J., Yang, W. Y., & Kang, C. G. (2010). MIMO-OFDM wireless communications with MATLAB. London: Wiley.CrossRefGoogle Scholar
  4. 4.
    Schmidl, T., & Cox, D. (1997). Robust frequency and timing synchronization for OFDM. IEEE Transactions on Communications, 45(12), 1613–1621.CrossRefGoogle Scholar
  5. 5.
    Minn, H., Zeng, M., & Bhargava, V. K. (2000). On timing offset estimation for OFDM systems. IEEE Communications Letters, 4, 242–244.CrossRefGoogle Scholar
  6. 6.
    Park, B., Cheon, H., Kang, C., & Hong, D. (2003). A novel timing estimation method for OFDM systems. IEEE Communications Letters, 7(5), 239–241.CrossRefGoogle Scholar
  7. 7.
    Park, B., Cheon, H., Kang, C., & Hong, D. (2002). A simple preamble for OFDM timing offset estimation. In IEEE VTC conference.Google Scholar
  8. 8.
    Ren, G., Chang, Y., Zhang, H., & Zhang, H. (2005). Synchronization methods based on a new constant envelope preamble for OFDM systems. IEEE Transactions on Broadcasting, 51(1), 139–143.CrossRefGoogle Scholar
  9. 9.
    Awoseyila, A. B., Kasparis, C., & Evans, B. G. (2008). Improved preamble aided timing estimation for OFDM systems. IEEE Communications Letters, 12(11), 825–827.CrossRefGoogle Scholar
  10. 10.
    Awoseyila, A. B., Kasparis, C., & Evans, B. G. (2009). Robust time-domain timing and frequency synchronization for OFDM systems. IEEE Transactions on Consumer Electronics, 55(2), 391–399.CrossRefGoogle Scholar
  11. 11.
    Shukla, S. (2015). An improved preamble aided timing estimation method for OFDM systems. ICTACT Journal on Communication Technology, 6(3), 1150–1154.Google Scholar
  12. 12.
    Kang, Y., Kim, S., Ahn, D., & Lee, H. (2008). Timing estimation for OFDM systems by using a correlation sequence of preamble. IEEE Transactions on Consumer Electronics, 54(4), 1600–1608.CrossRefGoogle Scholar
  13. 13.
    Abdzadeh-Ziabari, H., Shayesteh, M. G., & Manaffar, M. (2010). An improved timing estimation method for OFDM systems. IEEE Transactions on Consumer Electronics, 56(4), 2098–2105.CrossRefGoogle Scholar
  14. 14.
    Abdzadeh-Ziabari, H., & Shayesteh, M. (2012). A novel preamble-based frame timing estimator for OFDM systems. IEEE Communications Letters, 16(7), 1121–1124.CrossRefGoogle Scholar
  15. 15.
    Abdzadeh-Ziabari, H., & Shayesteh, M. (2011). Robust timing and frequency synchronization for OFDM systems. IEEE Transactions on Vehicular Technology, 60(8), 3646–3656.CrossRefGoogle Scholar
  16. 16.
    Liu, Y., et al. (2014). Robust timing estimation method for OFDM systems with reduced complexity. IEEE Communications Letters, 18(11), 1959–1962.CrossRefGoogle Scholar
  17. 17.
    van de Beek, J. J., Sandell, M., & Borjesson, P. O. (1997). ML estimation of time and frequency offset in OFDM systems. IEEE Transactions on Signal Processing, 45(7), 1800–1805.CrossRefGoogle Scholar
  18. 18.
    Sandell, M., van de Beek, J. J., & Borjesson, P. O. (1995). Timing and frequency synchronization in OFDM systems using the cyclic prefix. In Proceedings of international symposium on synchronization, Saalbau, Essen, Germany, 1995 (pp. 16–19).Google Scholar
  19. 19.
    van de Beek, J. J., Sandell, M., Isaksson, M., & Borjesson, P. O. (1995). Low-complex frame synchronization in OFDM systems. In Proceedings of the international conference universal personal communications (ICUPC’95), Tokyo, Japan (pp. 982–986). Google Scholar
  20. 20.
    Jagannatham, A. K. (2015). Principles of modern wireless communications systems. New York: McGraw-Hill Education.Google Scholar
  21. 21.
    Kay, S. M. (1993). Fundamentals of statistical signal processing, volume I: Estimation theory. Englewood Cliffs: Prentice Hall.zbMATHGoogle Scholar
  22. 22.
    Medbo, J., & Schramm, P. (1998). Channel models for HIPERLAN/2 in different indoor scenarios. ETSI/BRAN doc. no. 3ERI085B. http://read.pudn.com/downloads121/ebook/516255/Hiperlan/HIPERLAN%20-%203ERI085b.pdf.
  23. 23.
    van Nee, R. (1997). Delay spread requirements for wireless networks in the 2.4 GHz and 5 GHz bands. Standards Working Group IEEE P802.11 doc. 97/125. http://www.ieee802.org/11/Documents/DocumentArchives/1997_docs/71252.pdf.

Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.Department of Electronics and Communication EngineeringMNNIT AllahabadAllahabadIndia

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