Ming-Fu Tang

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For a massive multiple-input-multiple-output (MIMO) system operated under frequency-division duplex (FDD), downlink training was usually considered impractical due to huge amount of pilot signals and feedback overhead. Although some efforts have been spent to reduce such an overhead in recent works, the reduction is still limited. More recently, some(More)
In this paper, we consider an effective acquisition mechanism of partial channel state information at the transmitter (CSIT) for frequency-division duplex (FDD) massive MIMO systems, based on which two downlink beamforming methods are proposed. The partial CSIT is in the form of downlink angles of departure (AoDs) and the amplitudes of the strongest paths(More)
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