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An Improved frequency Synchronization Method Based on Autocorrelation function with Reduced Complexity  

Yang, Hyun (세종대학교 컴퓨터공학과)
Jeong, Kwang-Soo ((주)유정시스템)
Lee, Kyeong-Il ((주)유정시스템)
Yi, Jae-Hoon ((주)유정시스템)
You, Young-Hwan (세종대학교 컴퓨터공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.4C, 2009 , pp. 424-429 More about this Journal
Abstract
This paper suggests an autocorrelation function (AF) based carrier frequency offset (CFO) estimator based on a training sequence in flat fading channels. The proposed CFO estimator has the reduced computational burdens in the calculation of the AF when compared to AF-based conventional frequency estimators. The simulation results show that the proposed estimator achieves a better performance than the existing estimators. Furthermore, the performance of the proposed method has been observed to lie close to the Cramer-Rao lower bound (CRLB).
Keywords
synchronization; carrier frequency offset; autocorrelation function; CRLB;
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1 F. Gini, M. Luise, and R. Reggiannini, 'Cramer-Rao bounds in the parametric estimation of fading radio transmission channels,' IEEE Trans. Commun., vol. 46, no. 10, pp. 1390-1398, Oct. 1998   DOI   ScienceOn
2 S. Liu and J. Chong, 'A study of joint tracking algorithms of carrier frequency offset and sampling clock offset for OFDM-based WLANs,' International Conference on Communications, Circuits and Systems and West Sino Expositions 2002, pp. 109-113, July 2002
3 M. Fitz, 'Further results in the fast estimation of a single frequency,' IEEE Trans. Commun., vol. 42, no. 2-4, pp. 862-864, Feb./Mar./Apr. 1994   DOI   ScienceOn
4 S. M. Kay, 'A fast and accurate single frequency estimator,' IEEE Trans. Acoust., Speech, Signal Processing, vol. 37, no. 12, pp. 1987-1990, Dec. 1989   DOI   ScienceOn
5 M. Luise and R. Reggiannini, 'Carrier frequency recovery in all-digital modems for burst-mode transmissions,' IEEE Trans. Commun., vol. 43, no. 3, pp. 1169-1178, Mar. 1995   DOI   ScienceOn
6 T. Brown, M. Wang, 'An iterative algorithm for single-frequency estimation,' IEEE Trans. Signal Process., vol. 50, no. 11, pp. 2671-2682, Nov. 2002   DOI   ScienceOn
7 T. M. Schmidl and D.C. Cox, 'Robust frequency and timing synchronization for OFDM,' IEEE Trans. Comm., vol. 45, pp. 1613-1621, December 1997   DOI   ScienceOn