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Femtocell deployment provides a cost- and energy-saving solution for cellular operators. Although energy efficiency is imperative for green communications, most existing works on femtocells focus on interference mitigation and capacity maximization rather than on energy efficiency. In this paper, we propose two energy-efficient power control (EEPC) schemes for downlink transmissions in multichannel...
With the anticipated exponentially increasing traffic demand in future mobile networks, energy consumption becomes a significant challenge of the information and communication technology industry. Heterogeneous network (HetNet) is a promising infrastructure for both expenditure and energy saving for cellular operators and has attracted intensive research interest. In HetNets, offloading traffic from...
Driven by dramatic increase in the number of users and data usage, the rapidly increasing energy consumption in mobile cellular networks has become an urgent concern to address recently. Macro-femto network has been considered as one of the most promising infrastructure for the upcoming next generation cellular networks, where the energy efficiency issue has not been well investigated as most existing...
Configuration of eNB Sleep-mode is a promising strategy in improving network energy efficiency of next generation mobile networks. The main idea of sleep-mode mechanism is to reduce the energy consumption of cells during the periods when they are not necessary due to low traffic. In this paper, we propose a cooperative sleep-mode strategy for heterogeneous mobile networks where several small cells...
Traditional wireless communication systems focus on Spectral Efficiency (SE) with excessive energy consumption. With widespread attention on global warming and excessive energy consumption, system designers began focusing on energy efficiency (EE) instead of the traditional spectral efficiency. A system that maximizes either spectral efficiency or energy efficiency without taking into account the...
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