Linear Precoding for the MIMO Multiple Access Channel With Finite Alphabet Inputs and Statistical CSI

@article{Wu2015LinearPF,
  title={Linear Precoding for the MIMO Multiple Access Channel With Finite Alphabet Inputs and Statistical CSI},
  author={Yongpeng Wu and Chao-Kai Wen and Chengshan Xiao and Xiqi Gao and Robert Schober},
  journal={IEEE Transactions on Wireless Communications},
  year={2015},
  volume={14},
  pages={983-997}
}
In this paper, we investigate the design of linear precoders for the multiple-input-multiple-output (MIMO) multiple access channel (MAC). We assume that statistical channel state information (CSI) is available at the transmitters and consider the problem under the practical finite alphabet input assumption. First, we derive an asymptotic (in the large system limit) expression for the weighted sum rate (WSR) of the MIMO MAC with finite alphabet inputs and Weichselberger's MIMO channel model… CONTINUE READING
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