Multi-Cell Random Beamforming: Achievable Rate and Degrees of Freedom Region

  title={Multi-Cell Random Beamforming: Achievable Rate and Degrees of Freedom Region},
  author={Hieu Duy Nguyen and Rui Zhang and Hon Tat Hui},
  journal={IEEE Transactions on Signal Processing},
Random beamforming (RBF) is a practically favorable transmission scheme for multiuser multiantenna downlink systems since it requires only partial channel state information (CSI) at the transmitter. Under the conventional single-cell setup, RBF is known to achieve the optimal sum-capacity scaling law as the number of users goes to infinity, thanks to the multiuser diversity enabled transmission scheduling that virtually eliminates the intra-cell interference. In this paper, we extend the study… CONTINUE READING
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