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Editorial

Greener, Energy-Efficient and Sustainable Networks: State-Of-The-Art and New Trends

1
Department of electronics and computing, Faculty of electrical engineering, mechanical engineering and naval architecture (FESB), University of Split, 21000 Split, Croatia
2
Department of electronics, informatics and bioengineering, Politecnico di Milano, 20133 Milan, Italy
3
Department of electrical engineering, Universidad de Chile, Santiago 8370451, Chile
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(22), 4864; https://doi.org/10.3390/s19224864
Received: 2 November 2019 / Accepted: 4 November 2019 / Published: 8 November 2019
(This article belongs to the Special Issue Green, Energy-Efficient and Sustainable Networks)
Although information and communications technologies (ICTs) have the potential of enabling powerful social, economic and environmental benefits, ICT systems give a non-negligible contribution to world electricity consumption and carbon dioxide (CO2) footprint. This contribution will sustain since the increased demand for user′s connectivity and an explosion of traffic volumes necessitate continuous expansion of current ICTs services and deployment of new infrastructures and technologies which must ensure the expected user experiences and performance. In this paper, analyses of costs for the global annual energy consumption of telecommunication networks, estimation of ICT sector CO2 footprint contribution and predictions of energy consumption of all connected user-related devices and equipment in the period 2011–2030 are presented. Since presented estimations of network energy consumption trends for main communication sectors by 2030 shows that highest contribution to global energy consumption will come from wireless access networks and data centres (DCs), the rest of the paper analyses technologies and concepts which can contribute to the energy-efficiency improvements of these two sectors. More specifically, different paradigms for wireless access networks such as millimetre-wave communications, Long-Term Evolution in unlicensed spectrum, ultra-dense heterogeneous networks, device-to-device communications and massive multiple-input multiple-output communications have been analysed as possible technologies for improvement of wireless networks energy efficiency. Additionally, approaches related to the DC resource management, DCs power management, green DC monitoring and thermal management in DCs have been discussed as promising approaches to improvement of DC power usage efficiency. For each of analysed technologies, future research challenges and open issues have been summarised and discussed. Lastly, an overview of the accepted papers in the Special Issue dedicated to the green, energy-efficient and sustainable networks is presented. View Full-Text
Keywords: energy-efficiency; wireless; green; sustainable; data centre; networks; ICT; 5G; power; wired access; IoT energy-efficiency; wireless; green; sustainable; data centre; networks; ICT; 5G; power; wired access; IoT
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MDPI and ACS Style

Lorincz, J.; Capone, A.; Wu, J. Greener, Energy-Efficient and Sustainable Networks: State-Of-The-Art and New Trends. Sensors 2019, 19, 4864. https://doi.org/10.3390/s19224864

AMA Style

Lorincz J, Capone A, Wu J. Greener, Energy-Efficient and Sustainable Networks: State-Of-The-Art and New Trends. Sensors. 2019; 19(22):4864. https://doi.org/10.3390/s19224864

Chicago/Turabian Style

Lorincz, Josip, Antonio Capone, and Jinsong Wu. 2019. "Greener, Energy-Efficient and Sustainable Networks: State-Of-The-Art and New Trends" Sensors 19, no. 22: 4864. https://doi.org/10.3390/s19224864

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