Senyao Zheng

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In Orthogonal Frequency Division Multiplexing (OFDM) systems, the high-speed movement between the transmitter and receiver would cause large Doppler shifts, which will degrade the channel estimation severely due to the channel power dispersion. Moreover, the channel structure may vary fast such that the channel structure-based estimation methods cannot work(More)
The tremendous performance of large-scale multiple input multiple output (LS-MIMO) systems can be achieved by applying linear beamforming schemes, such as maximum ratio transmission and zero forcing, in time-division duplex mode. However, it is prohibitive to acquire the instantaneous channel state information (CSI) at the transmitter in frequency-division(More)
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