Optimal Design of Energy-Efficient Multi-User MIMO Systems: Is Massive MIMO the Answer?

  title={Optimal Design of Energy-Efficient Multi-User MIMO Systems: Is Massive MIMO the Answer?},
  author={Emil Bj{\"o}rnson and Luca Sanguinetti and Jakob Hoydis and M{\'e}rouane Debbah},
  journal={IEEE Transactions on Wireless Communications},
Assume that a multi-user multiple-input multiple-output (MIMO) system is designed from scratch to uniformly cover a given area with maximal energy efficiency (EE). What are the optimal number of antennas, active users, and transmit power? The aim of this paper is to answer this fundamental question. We consider jointly the uplink and downlink with different processing schemes at the base station and propose a new realistic power consumption model that reveals how the above parameters affect the… CONTINUE READING
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