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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Replica Correlation-Based Synchronization with Low Complexity and Frequency Offset Immunity

  • Chang, Kapseok (Communications & Internet Research Laboratory, ETRI) ;
  • Bang, Seung Chan (Communications & Internet Research Laboratory, ETRI) ;
  • Kim, Hoon (Department of Electronics Engineering, Incheon National University)
  • Received : 2012.11.07
  • Accepted : 2013.06.19
  • Published : 2013.10.31
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Abstract

This paper investigates the multifarious nature of the long-term evolution (LTE) scheme and that of the modified LTE scheme for symbol timing synchronization (STS). This investigation allows us to propose a new replica correlation-based STS scheme to overcome the inherent weaknesses of the other two schemes. The proposed STS signal combines a gold sequence and a half sine wave in the time domain, whereas conventional STS signals specify either binary sequences or complex sequences in the time domain or in the frequency domain. In the proposed scheme, a sufficient correlation property is realized by the gold sequence, and robustness against the frequency offset (FO) is achieved through the sine wave. Compared to the existing LTE-related schemes, the proposed scheme can better achieve immunity to FO and reduction in detector complexity, as well as a low peak-to-average power ratio and a low detection error rate. Performance evaluations through analysis and simulation are provided in the paper to demonstrate these attributes.

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References

  1. IEEE Std. 802.16m D12.0, Part 16: Air Interface for Fixed and Mobile Broadband Wireless Access Systems-Advanced Air Interface, IEEE Standard for Local and Metropolitan Area Networks, Feb. 2011.
  2. IEEE Std. 802.11n D4.0, Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: Amendment 4: Enhancements for Higher Throughput, IEEE Standard for Local Area Networks, March 2008.
  3. TS36.211 v10.0.0, Physical Channels and Modulation (Release 10), 3GPP TSG RAN1, Dec. 2010, pp. 92-96.
  4. H. Zhu and J. Wang, "Chunk-based Resource Allocation in OFDMA Systems-Part I: Chunk Allocation," IEEE Trans. Commun., vol. 57, no. 9, Sept. 2009, pp. 2734-2744. https://doi.org/10.1109/TCOMM.2009.09.080067
  5. H. Zhu and J. Wang, "Chunk-Based Resource Allocation in OFDMA Systems-Part II: Joint Chunk, Power and Bit Allocation," IEEE Trans. Commun., vol. 60, no. 2, Feb. 2012, pp. 499-509. https://doi.org/10.1109/TCOMM.2011.112811.110036
  6. K. Chang and Y. Han, "Robust Replica Correlation-based Symbol Synchronization in OFDM Systems," Electron. Lett., vol. 44, no. 17, Aug. 2008, pp. 1024-1025. https://doi.org/10.1049/el:20080937
  7. H. Meyr, M. Moeneclaey, and S.A. Fechtel, Digital Communication Receivers: Synchronization, Channel Estimation, and Signal Processing, New York: Wiley-Interscience, Oct. 2001.
  8. I.T.S. Sesia and M. Baker, LTE - The UMTS Long Term Evolution: From Theory to Practice, Chichester: John Wiley & Sons Ltd., 2009.
  9. H. Holma and A. Toskala, WCDMA for UMTS, Wiley, 2000.
  10. T.M. Schmidle and D.C. Cox, "Robust Frequency and Timing Synchronization for OFDM," IEEE Trans. Commun., vol. 45, no. 12, Dec. 1997, pp. 1613-1621. https://doi.org/10.1109/26.650240
  11. S.H. Han and J.H. Lee, "An Overview of Peak-to-Average Power Ratio Reduction Techniques for Multicarrier Transmission," IEEE Wireless Commun., 2005, pp. 56-65.
  12. M.M. Mansour, "Optimized Architecture for Computing Zadoff-Chu Sequences with Application to LTE," IEEE GLOBECOM, 2009.
  13. W. Xu and K. Manolakis, "Robust Synchronization for 3GPP LTE Systems," IEEE GLOBECOM, Miami, FL, USA, 2010.
  14. Z. Zhang, H. Kayama, and C. Tellambura, "New Joint Frame Synchronization and Carrier Frequency Offset Estimation Method for OFDM Systems," Euro. Trans. Telecommun., vol. 20, no. 4, June 2009, pp. 413-430. https://doi.org/10.1002/ett.1339
  15. 3GPP TS45.001, Physical Layer on the Radio Path: General Description (Release 4), 3GPP TSG RAN, Oct, 2000.
  16. IEEE Std. 802.11ad D9.0, Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: Amendment 3: Enhancements for Very High Throughput in the 60 GHz Band, IEEE Standard for Local Area Networks, July 2012.
  17. K. Chang, K.Y. Kim, and D.H. Kim, "Reduction of Doppler Effects in OFDM Systems," IEEE Trans. Consum. Electron., vol. 52, no. 4, Nov. 2006, pp. 1159-1166. https://doi.org/10.1109/TCE.2006.273128
  18. LG, "P-SCH Design," 3GPP Tech. Doc., Tdoc R1-072860, 3GPP TSG RAN WG1 #49 bis, Orlando, FL, USA, June 2007.
  19. A.J. Viterbi, CDMA: Principles of Spread Spectrum Communication, Reading, MA: Prentice Hall, 1995.
  20. X. Ouyang et al., "Partial Shift Mapping for PAPR Reduction with Low Complexity in OFDM Systems," ETRI J., vol. 34, no. 2, Apr. 2012, pp. 268-271. https://doi.org/10.4218/etrij.12.0211.0355
  21. J.J. van de Beek, M. Sandell, and P.O. Borjesson, "ML Estimation of Time and Frequency Offset in OFDM Systems," IEEE Trans. Signal Process., vol. 45, no. 7, July 1997, pp. 1800-1805. https://doi.org/10.1109/78.599949
  22. Q. Quan, "A Polynomial Complexity Optimal Multiuser Detection Algorithm Based on Monotonicity Properties," ETRI J., vol. 32, no. 3, June 2010, pp. 479-481. https://doi.org/10.4218/etrij.10.0209.0503
  23. X. Jiao and M.A. Armand, "On a Reduced-Complexity Inner Decoder for the Davey-MacKay Construction," ETRI J., vol. 34, no. 4, Aug. 2012, pp. 637-640. https://doi.org/10.4218/etrij.12.0211.0461
  24. 3GPP TR25.943 v8.0.0, Technical Specification Group Radio Access Networks: Deployment Aspects, Dec. 2008.
  25. M. Speth, F. Classen, and H. Meyr, "Frame Synchronization of OFDM Systems in Frequency Selective Fading Channels," IEEE VTC, vol. 3, May 1997.