Harmonic Retrieval Based Baseband Channel Estimation for Millimeter Wave OFDM Systems

IEEE Transactions on Vehicular Technology, pp. 2668-2681, 2019.

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Keywords:
baseband channel estimationdiscrete Fourier transformmassive MIMOMillimeter waveOFDMMore(2+)

Abstract:

For massive multi-input multi-output (MIMO) enhanced millimeter wave (mmWave) frequency-division multiplexing (OFDM) systems, channel estimation (CE) is challenging. In this paper, the baseband CE of mmWave based MIMO-OFDM systems after beam searching is formulated as a harmonic retrieval (HR) problem, where each path of the channel repre...More

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