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OFDM (orthogonal frequency division multiplexing) can utilize one-tap equalization for multipath (frequency selective) fading and is widely used in many wireless systems today. However, according to the demand for high-mobility communication and the use of higher carrier frequency, the influence of time selectivity of fading is increasing. Therefore, an accurate channel estimation of time and frequency...
In recent years, high-speed and high-quality mobile communications have been demanded. Wavelet packet modulation (WPM) has been proposed as one of the multicarrier transmission methods and applied to the mobile communications. The WPM has an advantage of equalizing performance compared with OFDM (orthogonal frequency division multiplexing) when a frequency domain equalizer (FDE) is applied because...
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