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- W169972412 abstract "This paper proposes a scheme to track channel response in OFDM systems with null sub-carriers. The proposed channel tracking scheme estimates the channel response first in the frequency domain by using the decision directed data. The time domain channel estimation is then performed to remove additive white Gaussian noise (AWGN) components further. Due to the channel estimation in the frequency domain, no inverse matrix calculation is required in the time domain channel estimation. Computational reduction in the proposed method is about 93%, compared with the conventional time domain channel estimation method. Mean square error (MSE) and bit error rate (BER) performances are evaluated by using computer simulation. The proposed method shows the same performance as that of the conventional time domain channel estimation even though the significant computational reduction." @default.
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- W169972412 date "2007-01-01" @default.
- W169972412 modified "2023-09-24" @default.
- W169972412 title "A Simplified Time Domain Channel Tracking Scheme in OFDM Systems with Null Sub-Carriers" @default.
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