Abstract
The carrier frequency offset (CFO) estimation is an important task for orthogonal frequency-division multiple-access (OFDMA) systems. Making use of the intrinsic periodic structure of the received signal samples, an effective Unitary-ESPRIT algorithm based on unitary transformation technique is proposed for the CFO estimation problem. Compared with other recently proposed CFO estimation approaches, the proposed algorithm offers a number of advantages. Firstly, the presented approach can reduce the computation complexity considerably, since it is efficiently formulated in terms of real-valued computation except for the data preprocessing. Secondly, it can provide better CFO estimation performance by incorporating the data stacking technology and the unitary transformation, etc. Simulation results demonstrate the efficacy of the proposed algorithm.
Similar content being viewed by others
References
IEEE Standard for Local and Metropolitan Area Networks. (2004). Part 16: Air interface for fixed broadband wireless access systems-amendment 2. IEEE Std. 802.16.
Zeng Y. H., Leyman A. R. (2008) Pilot-based simplified ML and fast algorithm for frequency offset estimation in OFDMA uplink. IEEE Transaction on Vehicular Technology 57(3): 1723–1732
Attallah S., Wu Y., Bergmans J. W. M. (2007) Low complexity blind estimation of residual carrier offset in orthogonal frequency division multiplexing based wireless local area network systems. IET Communications 1(4): 604–611
Zeng X. N., Ghrayeb A. (2008) A blind carrier frequency offset estimation scheme for OFDM systems with constant modulus signaling. IEEE Transactions on Communications 56: 1032–1037
Wu L., Zhang X. D., Li P. S., Su Y. T. (2009) A blind CFO estimation based on smoothing power spectrum for OFDM systems. IEEE Transactions on Communications 57(7): 1924–1927
Beek J. J., Börjesson P. O., Boucheret M. L., Landström D., Arenas J., Mahlqvist P., Mahlqvist C., Mahlqvist M., Wilson S. K. (1999) A time and frequency synchronization scheme for multiuser OFDM. IEEE Journal on Selected Areas in Communications 17: 1900–1914
Barbarossa S., Pompili M., Giannakis G. B. (2002) Channel-independent synchronization of orthogonal frequency-division multiple access systems. IEEE Journal on Selected Areas in Communications 20: 474–486
Cao Z. R., Tureli U., Yao Y. D. (2004) Deterministic multiuser carrier frequency offset estimation for interleaved OFDMA uplink. IEEE Transactions on Communications 52(9): 1585–1594
Lee J., Lee S., Bang K.-J. (2007) Carrier frequency offset estimation using ESPRIT for interleaved OFDMA uplink systems. IEEE Transaction on Vehicular Technology 56(5): 3227–3231
Hsieh H.-T., Wu W. R. (2011) Blind maximum-likelihood carrier-frequency-offset estimation for interleaved OFDMA uplink systems. IEEE Transaction on Vehicular Technology 60(1): 160–173
Schmidt, R. O. (1979). Multiple emitter location and signal parameter estimation. In Proceedings of RADC spectral estimation workshop (pp. 243–258).
Pun M. O., Morelli M., Jay Kuo C.-C. (2006) Maximum likelihood synchronization and shannel estimation for OFDMA uplink transmissions. IEEE Transactions on Communications 54(4): 726–736
Pun M. O., Morelli M., Jay Kuo C.-C. (2007) Iterative detection and frequency synchronization for OFDMA uplink transmissions. IEEE Transactions on Wireless Communications 6(2): 629–639
Sun P. F., Zhang L. (2009) Low complexity pilot aided frequency synchronization for OFDMA uplink transmission. IEEE Transactions on Wireless Communications 8(7): 3758–3769
Wang Z. J., Xin Y., Mathew G. (2009) Iterative carrier-frequency offset estimation for generalized OFDMA uplink transmission. IEEE Transactions on Wireless Communications 8(3): 1373–1382
Morelli, M., Jay Kuo, C.-C., & Pun, M. O. (2007). Synchronization techniques for orthogonal frequency division multiple access (OFDMA): A tutorial review. In Proceedings of the IEEE (Vol. 95, No. 7, pp. 1394–1427).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Du, R., Wang, J. & Liu, F. Unitary-ESPRIT Algorithm for Carrier Frequency Offset Estimation for Interleaved OFDMA Uplink Systems. Wireless Pers Commun 69, 1615–1627 (2013). https://doi.org/10.1007/s11277-012-0654-y
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11277-012-0654-y