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A transmit preprocessing technique for multiuser MIMO systems using a decomposition approach
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DOI：10.1109/TWC.2003.821148.png)
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Abstract
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We introduce a transmit preprocessing technique for the downlink of multiuser multiple-input multiple-output (MIMO) systems. It decomposes the multiuser MIMO downlink channel into multiple parallel independent single-user MIMO downlink channels. Some key properties are that each equivalent single-user MIMO channel has the same properties as a conventional single-user MIMO channel, and that increasing the number of transmit antennas of the multiuser system by one increases the number of spatial channels to each user by one. Simulation results are also provided and these results demonstrate the potential of our technique in terms of performance and capacity.
Keywords:
multiple-input multiple-output (MIMO) systems
multiuser decomposition
multiuser multiple-input multiple-output (MU-MIMO)
transmit single processing
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