Harnessing Green IT: Principles and Practices
IT Professional
LTE: the evolution of mobile broadband
IEEE Communications Magazine
Energy efficient wireless Internet access with cooperative cellular networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Modelling and optimization of power consumption in wireless access networks
Computer Communications
Swarm-oriented mobile services: Step towards green communication
Expert Systems with Applications: An International Journal
Energy efficiency analysis for flexible-grid OFDM-based optical networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Network pruning for energy saving in the Internet
Computer Networks: The International Journal of Computer and Telecommunications Networking
A simplified energy consumption model for fiber-based Next Generation Access Networks
Telematics and Informatics
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The contribution to global energy consumption of the information and communications technology (ICT) sector has increased considerably in the last decade, along with its growing relevance to the overall economy. This trend will continue due to the seemingly ever greater use of these technologies, with broadband data traffic generated by the usage of telecommunication networks as a primary component. In fact, in response to user demand, the telecommunications industry is initiating the deployment of next generation networks (NGNs). However, energy consumption is mostly absent from the debate on these deployments, in spite of the potential impact on both expenses and sustainability. In addition, consumers are unaware of the energy impact of their choices in ultra-broadband services. This paper focuses on forecasting energy consumption in the access part of NGNs by modelling the combined effect of the deployment of two different ultra-broadband technologies (FTTH-GPON and LTE), the evolution of traffic per user, and the energy consumption in each of the networks and user devices. Conclusions are presented on the levels of energy consumption, their cost and the impact of different network design parameters. The effect of technological developments, techno-economic and policy decisions on energy consumption is highlighted. On the consumer side, practical figures and comparisons across technologies are provided. Although the paper focuses on Spain, the analysis can be extended to similar countries.