Decentralizing the optimal multi-cell beamforming via large system analysis

@article{Asgharimoghaddam2014DecentralizingTO,
  title={Decentralizing the optimal multi-cell beamforming via large system analysis},
  author={Hossein Asgharimoghaddam and Antti T{\"o}lli and R. M. A. P. Rajatheva},
  journal={2014 IEEE International Conference on Communications (ICC)},
  year={2014},
  pages={5125-5130}
}
A multi-cell minimum power beamforming problem is considered. It is known that the inter-cell interference (ICI) terms couple the base stations (BS) and inter-cell coordination is required for global optimal solution. The cooperation can be realized by exchange of instantaneous channel state information (CSI) or terms related to the ICI values via a backhaul link. However, the limited backhaul capacity and delay constraints put a limit on achievable performance when the number of antennas and… CONTINUE READING
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