A New Channel Estimation Algorithm for OFDM Systems using Interpolation and Extrapolation 


Vol. 27,  No. 11, pp. 1011-1018, Nov.  2002


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  Abstract

In this paper, we propose a new channel estimation algorithm for IEEE 802.11a OFDM systems. The currently employed channel estimation algorithms are based on least-squares (LS) or minimum mean-square error (MMSE) criteria. These algorithms have large channel estimation error or need lots of computation. Recognizing the difference in the level of correlation, we propose a new algorithm which employes interpolation and extrapolation
to reduce the residual estimation error due to noise. We also perform computer simulations to show the performance improvement of the proposed algorithm. [n a result of the simulations, the proposed algorithm has more gain than MMSE by 1.2dB at BER.

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  Cite this article

[IEEE Style]

D. Leem and S. Ahn, "A New Channel Estimation Algorithm for OFDM Systems using Interpolation and Extrapolation," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 11, pp. 1011-1018, 2002. DOI: .

[ACM Style]

Duck-Soo Leem and Sang-Sik Ahn. 2002. A New Channel Estimation Algorithm for OFDM Systems using Interpolation and Extrapolation. The Journal of Korean Institute of Communications and Information Sciences, 27, 11, (2002), 1011-1018. DOI: .

[KICS Style]

Duck-Soo Leem and Sang-Sik Ahn, "A New Channel Estimation Algorithm for OFDM Systems using Interpolation and Extrapolation," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 11, pp. 1011-1018, 11. 2002.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880