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This article provides an overview on research in energy-efficient wireless networks during the past decade and discusses its potential applications toward the fifth generation cellular systems. After analyzing the trade-off between spectrum efficiency and energy efficiency, various research results are summarized within a framework of energy-efficient resource allocation with optimization as a common...
In this paper, we propose a power allocation scheme to suppress the inter-cell interference (ICI) in multi-cell multiuser multiple-input-multiple-output (MU-MIMO) systems. In particu-lar, by adopting relaxed signal-to-leakage-and-noise ratio (SLNR) beamforming, the transmit power allocated to the user is linearly associated with the leakage, which differs from previous works. Furthermore, we obtain...
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