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A novel semi-blind time-frequency domain tracking algorithm suitable for MPSK-OFDM

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Journal of Electronics (China)

Abstract

This paper presents a semi-blind tracking algorithm used for Multiple Phase Shift Keying based Orthogonal Frequency Division Multiplexing (MPSK-OFDM) system. By using special preambles to assist the decision of a feedback loop and to solve the problem of phase ambiguity, the tracking performance of the algorithm has been improved greatly. Only a few preambles are needed in the algorithm since the preambles are not used to estimate the frequency offset but used to provide the variation information of the phase due to the presence of frequency offset. Simulations verify that the algorithm has low SNR bound for tracking as well as high tracking accuracy and the tracking range is expanded to 30% of one subcarrier spacing.

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Authors and Affiliations

  1. Institute of Communications Engineering, PLA University of Science & Technology, Nan**g, 210007, China

    Li Wei, Youyun Xu, Yueming Cai & **aofei Pan

Authors
  1. Li Wei
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  2. Youyun Xu
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  3. Yueming Cai
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  4. **aofei Pan
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Corresponding author

Correspondence to Li Wei.

Additional information

Supported by the Natural Science Foundation of Jiangsu Province (BK2006701) and the National Natural Science Foundation of China (No.60672079).

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Wei, L., Xu, Y., Cai, Y. et al. A novel semi-blind time-frequency domain tracking algorithm suitable for MPSK-OFDM. J. Electron.(China) 25, 150–156 (2008). https://doi.org/10.1007/s11767-006-0126-1

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  • DOI: https://doi.org/10.1007/s11767-006-0126-1

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