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- W2012504691 abstract "Time domain synchronous OFDM (TDS-OFDM) has higher spectral efficiency than cyclic prefix OFDM (CP-OFDM), but suffers from severe performance loss over fast fading channels. In this paper, a novel transmission scheme called time-frequency training OFDM (TFT-OFDM) is proposed. The time-frequency joint channel estimation for TFT-OFDM utilizes the time-domain training sequence without interference cancellation to merely acquire the time delay profile of the channel, while the path coefficients are estimated by using the frequency-domain group pilots. The redundant group pilots only occupy about 1% of the useful subcarriers, thus TFT-OFDM still has much higher spectral efficiency than CP-OFDM by about 10%. Simulation results also demonstrate that TFT-OFDM outperforms CP-OFDM and TDS-OFDM over time-varying channels." @default.
- W2012504691 created "2016-06-24" @default.
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- W2012504691 date "2011-12-01" @default.
- W2012504691 modified "2023-09-27" @default.
- W2012504691 title "Time-Frequency Training OFDM with High Spectral Efficiency and Improved Performance over Fast Fading Channels" @default.
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- W2012504691 doi "https://doi.org/10.1109/glocom.2011.6133989" @default.
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