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In a MIMO OFDMA multiuser system, the multiuser diversity gain can be achieved both in spatial and frequency domain by joint spatial and frequency scheduling. Although the channel estimation error (CEE) may degrade such multiuser diversity gain, little work has been performed on it. In this paper, we investigate the effect of the CEE on MIMO OFDMA uplink based on multiuser singular value decomposition...
Since the channel reciprocity can be obtained in TD-SCDMA LTE system, the channel status information (CSI) can be exploited at the transmitter to implement multiuser spatial division multiplexing (SDM) and obtain both the spatial multiplexing gain and multiuser diversity gain efficiently. In this paper, zero forcing beamforming (ZFB) and multiuser per antenna rate control with antenna selection (MU-PARC-AS)...
Multiple input and multiple output (MIMO) can greatly enhance the performance of wireless system. However, the limited battery life and terminal size of the user equipment (UE) in a cellular system put a constraint on the performance enhancement by MIMO. Especially when the transmitter has more antenna than the receiver in downlink, the conventional MIMO schemes can only exploit partial multiplexing...
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