Skip to main content
SpringerLink
Log in

An Efficient Carrier Frequency Offset Tracking for OFDMA Systems Using Normalized Least-Mean-Square Algorithm

  • Published:
Circuits, Systems, and Signal Processing Aims and scope Submit manuscript

Abstract

In orthogonal frequency-division multiple access (OFDMA), carrier frequency offset (CFO) destroys the orthogonality between subcarriers due to Doppler effect of the channel and also causes inter-carrier interference (ICI) as well as multiple access interference (MAI). In this paper, CFO tracking algorithm for OFDMA system is presented to overcome the effect of ICI as well as MAI. The proposed algorithm employs normalized least-mean-square (NLMS) algorithm which tracks the residual carrier frequency offset in OFDMA system. The proposed NLMS-based tracking algorithm uses average of all residual carrier frequency offset (RCFO) for improving the mean square error (MSE) performance. The proposed NLMS-based frequency tracking along with frequency offset compensator improves the error performance by reducing the effect of ICI and MAI. Simulation results indicate that the proposed algorithm achieves better tracking performance in the presence of frequency offset. From the results, it is observed that the MSE of the proposed estimator is improved about 3.8 dB at SNR = 20 dB with the frequency offset.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

Similar content being viewed by others

References

  1. P. Cheng, Z. Chen, F. de Hoog, C.K. Sung, Sparse blind carrier-frequency offset estimation for OFDMA uplink. IEEE Trans. Commun. 64(12), 5254–5265 (2016)

    Google Scholar 

  2. X. Dai, Carrier frequency offset estimation and correction for OFDMA uplink. IET Commun. 1(2), 273–281 (2007)

    MathSciNet  Google Scholar 

  3. A. Farhang, N. Marchetti, L.E. Doyle, B. Farhang-Boroujeny, Low complexity CFO compensation in uplink OFDMA systems with receiver windowing. IEEE Trans. Signal Process. 63(10), 2546–2558 (2015)

    MathSciNet  MATH  Google Scholar 

  4. X. Fu, H. Minn, C. Cantrell, Two novel iterative joint frequency offset and channel estimation methods for OFDMA uplink. IEEE Trans. Commun. 56(3), 474–484 (2008)

    Google Scholar 

  5. W. Hao, Y. Liu, K. Wang, Analysis of DFT-based channel estimation for uplink massive MIMO systems. IEEE Commun. Lett. 22(2), 328–331 (2018)

    Google Scholar 

  6. S. Haykin, Adaptive Filter Theory, 2nd edn. (Prentice-Hall Inc, Upper Saddle River, 1991)

    MATH  Google Scholar 

  7. A.R. Heidarpour, G.K. Kurt, M. Uysal, On the performance of NCC-OFDMA systems in the presence of carrier frequency offset, in 2017 IEEE International Conference on Communications (ICC), Paris (2017), pp. 1–6

  8. M. Huang, L. Huang, C. Guo, P. Zhang, J. Zhang, L.L. Yang, Carrier frequency offset estimation in uplink OFDMA systems: an approach relying on sparse recovery. IEEE Trans. Veh. Technol. 66(10), 9592–9597 (2017)

    Google Scholar 

  9. M. Hyder, K. Mahata, Zadoff–Chu sequence design for random access initial uplink synchronization in LTE-like systems. IEEE Trans. Wirel. Commun. 16(1), 503–511 (2017)

    Google Scholar 

  10. M. Morelli, L. Marchetti, M. Moretti, Maximum likelihood frequency estimation and preamble identification in OFDMA-based WiMAX systems. IEEE Trans. Wirel. Commun. 13(3), 1582–1592 (2014)

    Google Scholar 

  11. P. Muneer, S.M. Sameer, Pilot-aided joint estimation of doubly selective channel and carrier frequency offsets in OFDMA uplink with high-mobility users. IEEE Trans. Veh. Technol. 64(1), 411–417 (2015)

    Google Scholar 

  12. Y. Na, H. Minn, Line search based iterative joint estimation of channels and frequency offsets for uplink OFDM systems. IEEE Trans. Wirel. Commun. 6(12), 4374–4382 (2007)

    Google Scholar 

  13. H.C. Nguyen, E. de Carvalho, R. Prasad, Multi-user interference cancellation schemes for carrier frequency offset compensation in uplink OFDMA. IEEE Trans. Wirel. Commun. 13(2), 1164–1171 (2014)

    Google Scholar 

  14. T.T. Nguyen, B. Berscheid, H.H. Nguyen, J. Eric Salt, A novel iterative OFDMA channel estimation technique for DOCSIS 3.1 uplink channels. IEEE Trans. Broadcast. 63(2), 361–375 (2017)

    Google Scholar 

  15. M. Pun, M. Morelli, C. Kuo, Maximum-likelihood synchronization and channel estimation for OFDMA uplink transmissions. IEEE Trans. Commun. 54(4), 726–736 (2006)

    Google Scholar 

  16. M.-O. Pun, S.-H. Tsai, C.-C. Kuo, An EM-based joint maximum likelihood estimation of carrier frequency offset and channel for uplink OFDMA systems, in Proceedings of the IEEE 60th Vehicular Technology Conference, vol. 1, pp. 598–602

  17. H.G. Ryu, Y. Li, J.S. Park, An improved ICI reduction method in OFDM communication system. IEEE Trans. Broadcast. 51(3), 395–400 (2005)

    Google Scholar 

  18. K. Sathananthan, R.M.A.P. Rajatheva, S.B. Slimane, Cancellation technique to reduce intercarrier interference in OFDM. IEE Electron. Lett. 36(25), 2078–2079 (2000)

    Google Scholar 

  19. B. Senthil, R. Aravind, K.M.M. Prabhu, An enhanced inter-carrier interference reduction scheme for OFDM system with phase noise. Circuits Syst. Signal Process. 32(2), 931–943 (2013)

    MathSciNet  Google Scholar 

  20. P. Sun, L. Zhang, Low complexity pilot aided frequency synchronization for OFDMA uplink transmission. IEEE Trans. Wirel. Commun. 8(7), 3758–3769 (2009)

    Google Scholar 

  21. J. van de Beek, P. Borjesson, M. Boucheret, D. Landstrom, J. Arenas, P. Odling, C. Ostberg, M. Wahlqvist, S. Wilson, A time and frequency synchronization scheme for multiuser OFDM. IEEE J. Sel. Areas Commun. 17(11), 1900–1914 (1999)

    Google Scholar 

  22. W. Zhang, F. Gao, Blind frequency synchronization for multiuser OFDM uplink with large number of receive antennas. IEEE Trans. Signal Process. 64(9), 2255–2268 (2016)

    MathSciNet  MATH  Google Scholar 

  23. Y. Zhang, R. Hoshyar, R. Tafazolli, Timing and frequency offset estimation scheme for the uplink of OFDMA systems. IET Commun. 2(1), 121–130 (2008)

    Google Scholar 

  24. Y. Zhao, S.G. Haggman, Intercarrier interference self-cancellation scheme for OFDM mobile communication systems. IEEE Trans. Commun. 49(7), 1185–1191 (2001)

    MATH  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Velammal Institute of Technology, Anna University, Chennai, India

    S. Ilaiyaraja

  2. RMD Engineering College, Anna University, Chennai, India

    K. Balasubadra

  3. Deputy Electrical Engineer (Design), PWD, Government of Tamilnadu, Chennai, India

    B. Senthil

Authors
  1. S. Ilaiyaraja
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. K. Balasubadra
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. B. Senthil
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to S. Ilaiyaraja.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Ilaiyaraja, S., Balasubadra, K. & Senthil, B. An Efficient Carrier Frequency Offset Tracking for OFDMA Systems Using Normalized Least-Mean-Square Algorithm. Circuits Syst Signal Process 39, 4930–4942 (2020). https://doi.org/10.1007/s00034-020-01395-w

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00034-020-01395-w

Keywords

Search

Navigation