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- W2373670689 abstract "Proposed a robust and low complexity implementation of DFT-based channel estimation algorithm using pseudo-pilot for Multi-band Orthogonal Frequency Division Multiplexing(MB-OFDM) Ultra-Wideband(UWB) systems.The propose algorithm can effectively protect against inter-symbol interference(ISI) caused by multipath channel.Without any prior knowledge of channel statistics and noise variance,DFT-based channel estimation is usually used to improve the performance of least square(LS) channel estimation.However,additional FFT/IFFT operations in DFT-based algorithm drastically increase the computational complexity and corresponding area and power consumption,whereas a novel pseudo-pilot assisted channel estimation(PPACE) algorithm is presented here using a 32-point FFT to afford robust and low complexity channel estimation with acceptable performance loss.It will be shown in simulation results that proposed low complexity PPACE algorithm is better than traditional DFT-based algorithm and linear minimum mean square error(LMMSE) algorithm.We also proposed here a generalized low complexity windowing technology for DFT-based channel estimation according to UWB channel model parameters to improve the mean square error(MSE) performance." @default.
- W2373670689 created "2016-06-24" @default.
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- W2373670689 date "2009-01-01" @default.
- W2373670689 modified "2023-09-27" @default.
- W2373670689 title "Low-complexity Channel Estimator for OFDM-UWB Systems" @default.
- W2373670689 hasPublicationYear "2009" @default.
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