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A Frequency Offset Estimation Algorithm using Frequency Offsets Estimated from Previous Packets in OFDM System  

Kim, Sang-Sik (연세대학교 전기전자공학과 프로세서연구실)
Kwak, Jae-Min (목포해양대학교 해양전자통신공학부)
Park, Jong-Su (연세대학교 전기전자공학과 프로세서연구실)
Choi, Jong-Chan (전자부품연구원 SoC 연구센터)
Lee, Yong-Surk (연세대학교 전기전자공학과 프로세서연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.33, no.7A, 2008 , pp. 702-709 More about this Journal
Abstract
This paper presents a frequency offset estimation scheme which can be used for packet based OFDM communication systems. The proposed scheme detects the failure of performing coarse frequency offset estimation and compensates the error of estimated coarse frequency offset. The preamble structure considered in this paper is based on the preamble specified in IEEE802.11a and IEEE802.11p standards. We performed simulation to compare the performance according to the different number of reference packets used to detect the failure of performing coarse frequency offset estimation. The simulation results show that the proposed scheme has better performance than the conventional scheme in the low SNR(below 2dB) environment.
Keywords
OFDM; IEEE802.11a; Frequency offset; SNR; MSE;
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  • Reference
1 John A. C. Bingham, "Multicarrier Modulation for Data Transmission: An Idea Whose Time Has Come," IEEE Comm.. Mag., pp.5-14, 1990
2 K. Frazel and S. Kaiser, "Multi-Carrier and Spread Spectrum Systems," West Sussex, England: John Wiley and Sons, 2003
3 Feher and Kalmilo, "Wireless Digital Communications : Modulation and Spread Spectrum Applications : Modulation and Spread," Prentice-Hall, 1995
4 J. Li, G. Liu, and G. B. Giannakis, "Carrier Frequency Offset Estimation for OFDM-based WLANs," IEEE Signal Process. Lett., Vol.8, pp.80-82, Mar. 2001   DOI   ScienceOn
5 R. V. Nee and R. Prasad, "OFDM for Wireless Multimedia Communications," Artech House Publishers, 2000
6 John Terry and Juha Heiskala, "OFDM Wireless LANs : A Theoretical and Practical Guide," SAMS, 2002
7 ETSI Normalization Committee, "Radio Broadcasting Systems, Digital Audio Broadcasting (DAB) to Mobile, Portable and Fixed Receivers," Norme ETSI, document ETS 300 401, European Telecommunications Standards Institute, Sophia-Antipolis, Valbonne, France, 1995-1997
8 H. Nogami and T. Nagashima, "A Frequency and Timing Period Acquisition Technique for OFDM System," Proc. of IEEE PIMRC, Toronto, Canada, pp.1010-1015, Sep. 1995
9 P. H. MOOSE, "A Technique for Orthogonal Frequency Division Multiplexing Frequency Offset Corrention," IEEE Trans. Comm., Vol.42, No.10, pp.2908-2914, 1994   DOI   ScienceOn
10 "Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: High-Speed Physical Layer in the 5GHz Band," IEEE Std 802.11a, December 1999
11 "Amendment to Standard for Information Technology, Wireless Access in Vehicular Environments(WAVE)," IEEE 802.11p draft, Jan. 2005
12 John Terry and Juha Heiskala, "OFDM Wireless LANs : A Theoretical and Practical Guide," SAMS, 2002
13 T. M. Schmidl and D. C. Cox, "Robust Frequency and Timing Synchronization for OFDM," IEEE Trans. Comm., Vol.45, No.12, pp.1613-1621, 1997   DOI   ScienceOn
14 T. Pollet, M . Van Bladel, and M. Moeneclaey, "BER Sensitivity of OFDM Systems to Carrier Frequency Offset and Weiner Phase Noise," IEEE Trans. Comm., Vol.43, part 1, pp.191-193, Feb. 1995   DOI   ScienceOn