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A Novel Power-Saving Transmission Scheme for Multiple-Component-Carrier Cellular Systems

Department of Communications, Navigation and Control Engineering, National Taiwan Ocean University, Keelung City 20224, Taiwan
Academic Editor: William Holderbaum
Energies 2016, 9(4), 265;
Received: 23 January 2016 / Revised: 21 March 2016 / Accepted: 25 March 2016 / Published: 2 April 2016
(This article belongs to the Special Issue Control of Energy Storage)
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As mobile data traffic levels have increased exponentially, resulting in rising energy costs in recent years, the demand for and development of green communication technologies has resulted in various energy-saving designs for cellular systems. At the same time, recent technological advances have allowed multiple component carriers (CCs) to be simultaneously utilized in a base station (BS), a development that has made the energy consumption of BSs a matter of increasing concern. To help address this concern, herein we propose a novel scheme aimed at efficiently minimizing the power consumption of BS transceivers during transmission, while still ensuring good service quality and fairness for users. Specifically, the scheme utilizes the dynamic activation/deactivation of CCs during data transmission to increase power usage efficiency. To test its effectiveness, the proposed scheme was applied to a model consisting of a BS with orthogonal frequency division multiple access-based CCs in a downlink transmission environment. The results indicated that, given periods of relatively light traffic loads, the total power consumption of the proposed scheme is significantly lower than that of schemes in which all the CCs of a BS are constantly activated, suggesting the scheme’s potential for reducing both energy costs and carbon dioxide emissions. View Full-Text
Keywords: power-saving; green cellular systems; multiple component carriers power-saving; green cellular systems; multiple component carriers

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Chung, Y.-L. A Novel Power-Saving Transmission Scheme for Multiple-Component-Carrier Cellular Systems. Energies 2016, 9, 265.

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