A Novel Frequency Synchronization Algorithm Based on PN Sequences and Pilots for TFU-OFDM Systems


Article Preview

In this paper, a novel frequency synchronization algorithm for a new modulation scheme named time domain and frequency domain united orthogonal frequency division multiplexing (TFU-OFDM) is introduced. The frequency synchronization method has two-steps, which joints time and frequency domain estimation based on PN sequences and pilots. We utilize the PN sequences as guard intervals in time domain to achieve the first-step estimation and the second-step is realized by the pilots in data blocks in frequency domain. The simulation results and analysis show that the proposed frequency synchronization method could achieve fast and reliable synchronization and sufficient precision, and provides excellent performance for TFU-OFDM systems.



Edited by:

Qi Luo






G. D. Xue et al., "A Novel Frequency Synchronization Algorithm Based on PN Sequences and Pilots for TFU-OFDM Systems", Applied Mechanics and Materials, Vols. 58-60, pp. 1541-1547, 2011

Online since:

June 2011




[1] Paul H. Moose:A technique for orthogonal frequency division multiplexing frequency offset correction, IEEE Transactions on Communications, Vol. 42, No. 10 (October 1994): 2908-2914.

DOI: 10.1109/26.328961

[2] IEEE 16e (2006).

[3] J. Song, Z. Yang, L. Yang, K. Gong,C. Pan, J. Wang and Y. Wu:Technical review on Chinese digital terrestrial television broadcasting standard and measurements on some working modes, IEEE Trans. Broadcast., vol. 53, no. 1, p.1–7 (Mar. 2007).

DOI: 10.1109/tbc.2007.891835

[4] F. Tufvesson, O. Edfors and M. Faulkner:Time and Frequency Synchronization for OFDM using PN-Sequence Preambles, Proc. IEEE Veh. Technol. (VTC'99, 1999): 2203-2207.

DOI: 10.1109/vetecf.1999.797329

[5] ZiWei Zheng, ZhiXing Yang, ChangYong Pan, and YiSheng Zhu:Synchronization and channel estimation for TDS-OFDM systems, Vehicular Technology Conference, Volume 2 (2003).

[6] Yi Xu, Xin Su, and YuanZhang Xiao :A Novel Modulation Scheme Combining the Advantages of CP-OFDM and TDS-OFDM, 2009 International Conference on Wireless Communications & Signal Processing, Nanjing (2009).

DOI: 10.1109/wcsp.2009.5371481

[7] J. J. van de Beek, M. Sandell, and P. O. Bojesson:ML estimation of time and frequency offset in OFDM systems, IEEE Trans. Signal Processing. vol. 45, pp.1800-1805 (July 1997).

DOI: 10.1109/78.599949

[8] D. Landstrom, S. K. Wilson, J. J. van de Beek, P. Odling. and P. O. Bojesson:Symbol time offset estimation in coherent OFDM systems, in Proc. Inl. conf. On Communications. Vancouver, BC, Canada (June 1999), pp.500-505.

DOI: 10.1109/icc.1999.767990

[9] H. Minn. M. Zeng, and V. K. Bhargava:On timing offset estimation for OFDM systems, IEEE Commun., LeII., vol. 4, pp.242-244 (July 2000).

DOI: 10.1109/4234.852929

[10] T. M. Schmidl and D. C. Cox:Robust frequency and timing synchronization for OFDM, IEEE Trans. Commun., vol. 45, pp.1613-1621 (Dec. 1997).

DOI: 10.1109/26.650240

[11] Jianming Wu, Yun Chen, Xiaoyang Zeng:Robust Timing and Frequency Synchronization Scheme for DTMB System, IEEE Transactions on Consumer Electronics, Vol. 53, No. 4 (Nov. 2007).

DOI: 10.1109/tce.2007.4429223

[12] J. Wang, Z. X. Yang, C. Y. Pan, M. Han, and L. Yang:A combined code acquisition and symbol timing recovery method for TDS-OFDM, IEEE Trans. Broadcast., vol. 49, no. 3, p.304–308 (Sep. 2003).

DOI: 10.1109/tbc.2003.817092

[13] S. Tang, K. Peng, and K. Gong:Robust frame synchronization for Chinese DTTB system, IEEE Trans. Broadcast., vol. 54, no. 1, p.152–158 (Mar. 2008).

DOI: 10.1109/tbc.2007.912056

[14] GuangHui Liu and Sergey V. Zhidkov:A Composite PN-Correlation Based Synchronizer for TDS-OFDM Receiver, IEEE Trans. Broadcast, vol. 56, no. 1 (Mar. 2010).

DOI: 10.1109/tbc.2009.2039520

In order to see related information, you need to Login.