• Corpus ID: 238856731

On Downlink Interference Decoding In Multi-Cell Massive MIMO Systems

@article{Motlagh2021OnDI,
  title={On Downlink Interference Decoding In Multi-Cell Massive MIMO Systems},
  author={Meysam Shahrbaf Motlagh and Subhajit Majhi and Patrick Mitran and Hideki Ochiai},
  journal={ArXiv},
  year={2021},
  volume={abs/2110.07107}
}
In this paper, the downlink of a multi-cell massive MIMO system is considered where the channel state information (CSI) is estimated via pilot symbols that are orthogonal in a cell but re-used in other cells. Re-using the pilots, however, contaminates the CSI estimate at each base station (BS) by the channel of the users sharing the same pilot in other cells. The resulting inter-cell interference does not vanish even when the number of BS antennas M is large, i.e., M → ∞, and thus the rates… 

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