Two-Stage Subspace Constrained Precoding in Massive MIMO Cellular Systems

@article{Liu2015TwoStageSC,
  title={Two-Stage Subspace Constrained Precoding in Massive MIMO Cellular Systems},
  author={A. Liu and V. Lau},
  journal={IEEE Transactions on Wireless Communications},
  year={2015},
  volume={14},
  pages={3271-3279}
}
  • A. Liu, V. Lau
  • Published 2015
  • Computer Science, Mathematics
  • IEEE Transactions on Wireless Communications
  • We propose a subspace constrained precoding scheme to fully unleash the gain provided by massive antenna array with reduced channel state information (CSI) signaling overhead. The MIMO precoder at each base station (BS) is partitioned into an inner precoder and a Transmit (Tx) subspace control matrix. The inner precoder is adaptive to the local CSI at each BS for spatial multiplexing gain. The Tx subspace control is adaptive to the channel statistics for inter-cell interference mitigation… CONTINUE READING
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