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Erschienen in:
2013 | OriginalPaper | Buchkapitel
An Improved Blind Channel Estimation Based on Subspace Approach for OFDM Systems Under Fast Time Varying Conditions
verfasst von : Zaier Aida, Ridha Bouallegue
Erschienen in: Computer Networks & Communications (NetCom)
Verlag: Springer New York
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Abstract
In this paper, an improved channel estimation scheme is proposed for fast time varying channel in an OFDM context. This scheme is based on a subspace approach for blindly identifying the OFDM frequency selective channel and it will be shown from simulations that this approach is preferable than the other methods based on the training sequences which are expensive in term of channel efficiency and capacity. So, in this article and based on the simulations results, we will try to show the great effect of this approach when added in the system model in term of bit error rate BER and mean square error MSE versus the signal to noise ratio SNR.