Pilot-Aided Channel Estimation for OFDM System Using Wavelet Transform and Interpolation


The KIPS Transactions:PartC, Vol. 12, No. 5, pp. 665-672, Oct. 2005
10.3745/KIPSTC.2005.12.5.665,   PDF Download:

Abstract

We present a novel pilot-aided channel estimation method for OFDM(Orthogonal Frequency Division Multiplexing) system using WT(Wavelet Transform) and interpolation. Due to excellent AWGN(Additive White Gaussian Noise) Cancellation capability of WT, pilot channels are estimated quite exactly and then, they are used in 2-degree polynomial interpolating the other remaining data symbol channels. The simulation results for Short WATM(Wireless Asynronous Transfer Mode) channel show that the degradation in BER(Bit Error Ratio) performance of OFDM system with this estimator is negligible compared to the case of perfect knowledge of CSI(Channel State Information).


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Cite this article
[IEEE Style]
H. Y. Kong and D. H. Nam, "Pilot-Aided Channel Estimation for OFDM System Using Wavelet Transform and Interpolation," The KIPS Transactions:PartC, vol. 12, no. 5, pp. 665-672, 2005. DOI: 10.3745/KIPSTC.2005.12.5.665.

[ACM Style]
Hyung Yun Kong and Doo Hee Nam. 2005. Pilot-Aided Channel Estimation for OFDM System Using Wavelet Transform and Interpolation. The KIPS Transactions:PartC, 12, 5, (2005), 665-672. DOI: 10.3745/KIPSTC.2005.12.5.665.