Energy Efficiency in MIMO Underlay and Overlay Device-to-Device Communications and Cognitive Radio Systems

@article{Zappone2017EnergyEI,
  title={Energy Efficiency in MIMO Underlay and Overlay Device-to-Device Communications and Cognitive Radio Systems},
  author={Alessio Zappone and Bho Matthiesen and Eduard Axel Jorswieck},
  journal={IEEE Transactions on Signal Processing},
  year={2017},
  volume={65},
  pages={1026-1041}
}
This paper addresses the problem of resource allocation for systems in which a primary and a secondary link share the available spectrum by an underlay or overlay approach. After observing that such a scenario models both cognitive radio and D2D communications, we formulate the problem as the maximization of the secondary energy efficiency subject to a minimum rate requirement for the primary user. This leads to challenging nonconvex, fractional problems. In the underlay scenario, we obtain the… Expand
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