volume | PIER Journals

Abstract

This paper suggests a pilot-less residual carrier frequency offset (CFO) estimator for ultra-wideband orthogonal frequency division multiplexing (UWB-OFDM) systems. The basic idea of our approach is based on the fact that two adjacent OFDM symbols carry the identical information in the UWB-OFDM system, thus removing the need of pilot symbols. To demonstrate the efficiency of the proposed pilot-less CFO estimator, analytical expression of the mean square error (MSE) is reported and comparisons are made with the conventional pilot-aided CFO estimator in terms of MSE and throughput.

1. Fan, Z. G., L. X. Ran, and J. A. Kong, "Source pulse optimizations for UWB radio systems," Journal of Electromagnetic Waves and Applications, Vol. 20, No. 11, 1535-1550, 2006.
doi:10.1163/156939306779274309 Google Scholar

2. Soliman, M. S., T. Morimoto, and Z. I. Kawasaki, "Three-dimensional localization system for impulsive noise sources using ultra-wideband digital interferometer technique," Journal of Electromagnetic Waves and Applications, Vol. 20, No. 2, 515-530, 2006.
doi:10.1163/156939306776117027 Google Scholar

3. Chen, C.-H., C.-H. Liu, C.-C. Chiu, and T.-M. Hu, "Ultrawide band channel caculation by SBR/IMAG techniques for indoor communication," Journal of Electromagnetic Waves and Applications, Vol. 20, No. 1, 41-51, 2006.
doi:10.1163/156939306775777387 Google Scholar

4. Liu, Y. J., Y. R. Zhang, and W. Cao, "A novel approach to the refraction propagation characteristics of UWB signal waveforms," Journal of Electromagnetic Waves and Applications, Vol. 21, No. 14, 1939-1950, 2007.
doi:10.1163/156939307783152966 Google Scholar

5. ECMA International, , High rate ultra wideband PHY and MAC standard, Standard ECMA-368, December 2007.

6. WiMedia Alliance, , Presentation to DLNA, January 2007.

7. Xiao, S., J. Chen, X.-F. Liu, and B.-Z. Wang, "Spatial focusing characteristics of time reversal UWB pulse transmission with different antenna arrays," Progress In Electromagnetics Research B, Vol. 2, 223-232, 2008.
doi:10.2528/PIERB07112203 Google Scholar

8. El-Fishawy, N., M. Shokair, and W. Saad, "Proposed MAC protocol versus IEEE802.15.3a for multimedia transmission over UWB networks," Progress In Electromagnetics Research B, Vol. 2, 189-206, 2008.
doi:10.2528/PIERB07111812 Google Scholar

9. Khani, H. and P. Azmi, "Performance analysis of a high data rate UWB-DTR system in dense multipath channels," Progress In Electromagnetics Research B, Vol. 5, 119-131, 2008. Google Scholar

10. Yin, X.-C., C. Ruan, C.-Y. Ding, and J.-H. Chu, "A planar U type monopole antenna for UWB applications," PIER Letters, Vol. 2, 1-10, 2008. Google Scholar

11. Cui, W., P. Ranta, T. Brown, and C. Reed, "Wireless video streaming over UWB," Proc. of ICUWB 2007, 933-936, Sept. 2007. Google Scholar

12. Kim, J., S. Lee, Y. Jeon, and S. Choi, "Residential HDTV distribution system using UWB and IEEE 1394," IEEE Trans. Consumer Electronics, Vol. 52, No. 1, 116-122, February 2006.
doi:10.1109/TCE.2006.1605035 Google Scholar

13. Yak, C., Z. Lei, S. Chattong, and T. Tjhung, "Timing synchronization and frequency offset estimation for Ultra-Wideband (UWB) multi-band OFDM systems," Proc. of PIMRC 2005, 471-475, Spet. 2005. Google Scholar

14. Yinghui, L., T. Jacobs, and H. Minn, "Frequency offset estimation for MB-OFDM-based UWB systems," Proc. of ICC 2006, 4729-4734, June 2006. Google Scholar

15. Wang, X., T. T. Tjhung, Y.Wu, and B. Caron, "SER performance evaluation and optimization of OFDM system with residual frequency and timing offsets from imperfect synchronization," IEEE Trans. Broadcasting, Vol. 49, No. 2, 170-177, June 2003.
doi:10.1109/TGRS.2003.810271 Google Scholar

16. Ai, B., Z.-X. Yang, C.-Y. Pan, J.-H. Ge, Y. Wang, and Z. Lu, "On the synchronization techniques for wireless OFDM systems," IEEE Trans. Broadcasting, Vol. 52, No. 2, 236-244, June 2006.
doi:10.1109/TBC.2006.872990 Google Scholar

17. Shim, E. S. and Y. H. You, "Parameter estimation and error reduction in multicarrier systems by time-domain spreading," Progress In Electromagnetics Research B, Vol. 7, 1-12, 2008. Google Scholar

18. Speth, M., S. A. Fechtel, G. Fock, and H. Meyr, "Optimum receiver design for OFDM based broadband transmission --- Part II," IEEE Trans. Commun., Vol. 49, 571-578, April 2001.
doi:10.1109/26.917759 Google Scholar

19. Shi, K., E. Serpedin, and P. Ciblat, "Decision-directed fine synchronization for OFDM systems," IEEE Trans. Commun., Vol. 53, 408-412, March 2005.
doi:10.1109/TCOMM.2005.843463 Google Scholar

20. Chih-Peng, L., C. Po-Lin, and L. Tsui-Tsai, "Residual carrier frequency offset tracking for OFDM-based systems," Proc. of APCCAS 2004, 989-992, December 2004. Google Scholar

21. Speth, M., S. A. Fechtel, G. Fock, and H. Meyr, "Optimum receiver design for wireless broad-band systems using OFDM --- Part I," IEEE Trans. Commun., Vol. 47, 1668-1677, November 1999.
doi:10.1109/26.803501 Google Scholar

22. Foerster, J., Channel Modeling Sub-committee Report, IEEE, 802.15-02/490r1-SG3a, Febuary 2003.

23. Baek, M. S., M. J. Kim, Y. H. You, and H. K. Song, "Semi-blind channel estimation and PAR reduction for MIMO-OFDM system with multiple antennas," IEEE Trans. on Broadcasting, Vol. 50, No. 4, 414-424, December 2004.
doi:10.1109/TBC.2004.837885 Google Scholar

24. Koo, B. W., M. S. Baek, and H. K. Song, "Multiple antenna transmission technique for UWB system," PIER Letters, Vol. 2, 177-185, 2008. Google Scholar

Dr. Jee-Hyun Kim

Dr. Young-Hwan You

Dr. Kyeong-Il Lee

Dr. Jae-Hoon Yi