Channel Smoothing for 802.11ax Beamformed MIMO-OFDM

IEEE Communications Letters（2021）

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摘要

Channel smoothing is a powerful technique that improves the channel estimation of orthogonal frequency division multiplexing (OFDM) systems by exploiting the correlation or smoothness among the frequency-domain channel responses. However, it can’t be applied to WiFi beamformed MIMO systems because the beamforming vectors provided by the beamforming receiver are disruptive and consequently make the...

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关键词

Channel estimation,Array signal processing,Smoothing methods,Receivers,Standards,Wireless fidelity,Transmitters

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