A Novel Channel Compensation and Equalization scheme for an OFDM Based Modem 


Vol. 28,  No. 12, pp. 1009-1018, Dec.  2003


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  Abstract

A new fading channel estimation technique is proposed for an OFDM based modem in the ITS system. The algorithm is based on the transfer function extraction of the channel using the pilot signals and compensated the channel preceding the equalization. The newly derived algorithm is division-free arithmetic operations allows the faster circuit operation and the smaller circuit size. Proposed techniques compensate firstly the distortion which is generated at fading channels and secondly eliminate inter-symbol interference. All algorithms are suitability estimated and improved for a system implementation using digital circuits. As the results, the circuit size is reduced by 20% of the conventional design and achieved about 10% performance improvement at low SNR under 10dB in case of ITS system adapted 16-QAM mode.

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  Cite this article

[IEEE Style]

J. Seo, H. Lee, C. Cheong, K. Cho, "A Novel Channel Compensation and Equalization scheme for an OFDM Based Modem," The Journal of Korean Institute of Communications and Information Sciences, vol. 28, no. 12, pp. 1009-1018, 2003. DOI: .

[ACM Style]

Jung-Hyun Seo, Hyun Lee, Cha-Keon Cheong, and Kyoung-Rok Cho. 2003. A Novel Channel Compensation and Equalization scheme for an OFDM Based Modem. The Journal of Korean Institute of Communications and Information Sciences, 28, 12, (2003), 1009-1018. DOI: .

[KICS Style]

Jung-Hyun Seo, Hyun Lee, Cha-Keon Cheong, Kyoung-Rok Cho, "A Novel Channel Compensation and Equalization scheme for an OFDM Based Modem," The Journal of Korean Institute of Communications and Information Sciences, vol. 28, no. 12, pp. 1009-1018, 12. 2003.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880