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IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences 2008 E91-A(5):1296-1298; doi:10.1093/ietfec/e91-a.5.1296
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Copyright © 2008 The Institute of Electronics, Information and Communication Engineers

Regular Section -- Letters -- Mobile Information Network and Personal Communications

Improved Fine Frequency Synchronization Method for OFDM-Based DRM

Young-Hwan YOU1, Sang-Tae KIM2, Kyung-Taek LEE3 and Hyoung-Kyu SONG1

1 The authors are with the uT Communication Research Center, Sejong University, Korea. E-mail: yhyou{at}sejong.ac.kr, 2 The author is with the Korea Institute of Industrial Technology Evaluation and Planning, Seoul, Korea., 3 The author is with the DxB & Communication Convergence Research Center, Korea Electronic Technology Institute, Korea.

In this letter, a robust pilot-assisted synchronization scheme is proposed for estimation of residual frequency offset (RFO) in OFDM-based digital radio mondiale (DRM) system. The RFO estimator uses the gain reference pilots mainly reserved for the channel tracking in the DRM standard. To demonstrate the efficiency of the proposed RFO estimator, comparisons are made with the conventional RFO estimator using the frequency reference pilots in terms of mean square error (MSE) performance.

Key Words: digital radio mondiale, OFDM, synchronization

Manuscript received August 29, 2007. Manuscript revised December 17, 2007.

References

[1] ETSI ETS 300 401, "Radio broadcasting systems: Digital audio broadcasting (DAB) to mobile, portable and fixed receivers," ETSI, Tech. Rep., Feb. 1995.

[2] ETSI ETS 300 744, "Digital video broadcasting (DVB): Frame structure, channel coding and modulation for digital terrestrial television (DVB-T)," ETSI, Tech. Rep., March 1997.

[3] ETSI TS 101980, "Digital radio mondiale (DRM): System specification," ETSI, Tech. Rep., 2001.

[4] V. Fischer and A. Kurpiers, "Frequency synchronization strategy for a PC-based DRM receiver," Proc. APCCS 2004, pp.989–992, Dec. 2004.

[5] S. Liu and J. Chong, "A study of joint tracking algorithms of carrier frequency offset and sampling clock offset for OFDM-based WLANs," Proc. International Conference on Communications, Circuits and Systems and West Sino Expositions 2002, pp.109–113, July 2002.

[6] K. Shi, E. Serpedin, and P. Ciblat, "Decision-directed fine synchronization in OFDM systems," IEEE Trans. Commun., vol.53, no.3, pp.408–412, March 2005.

[7] M. Speth, S.A. Fechtel, G. Fock, and H. Meyr, "Optimum receiver design for OFDM-based broadband transmission-Part II: A case study," IEEE Trans. Commun., vol.49, no.4, pp.571–578, April 2001.


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This Article
Right arrow Abstract Freely available
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
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Right arrow Email this article to a friend
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Right arrow Articles by YOU, Y.-H.
Right arrow Articles by SONG, H.-K.
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