A Survey of Green Mobile Networks: Opportunities and Challenges

Abstract

The explosive development of Information and Communication Technology (ICT) has significantly enlarged both the energy demands and the CO 2 emissions, and consequently contributes to make the energy crisis and global warming problems worse. However, as the main force of the ICT field, the mobile networks, are currently focusing on the capacity, variety and stability of the communication services, without paying too much severe concerns on the energy efficiency. The escalating energy costs and environmental concerns have already created an urgent need for more energy-efficient “green” wireless communications. In this paper, we survey and discuss various remarkable techniques toward green mobile networks to date, mainly targeting mobile cellular networks. We also summarize the current research projects related to green mobile networks, along with the taxonomy of energy-efficiency metrics. We finally discuss and elaborate future research opportunities and design challenges for green mobile networks.

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Notes

  1. 1.

    For simplicity, we will use “mobile networks” for the cellular networks throughout this paper

  2. 2.

    More specific surveys on the latter two can be found in [16] and [17] respectively.

  3. 3.

    Although data centers in backhaul are used not only by mobile hosts but also by wired hosts, we still carry out discussions in this paper, as mobile devices and networks are becoming more important.

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Acknowledgements

This research was partly supported by NAP of Korea Research Council of Fundamental Science & Technology, and also supported by the KCC (Korea Communications Commission), Korea, under the R&D program supervised by the KCA (Korea Communications Agency) (KCA-2011-11-913-05-002). The ICT at Seoul National University provides research facilities for this study.

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Correspondence to Ted Taekyoung Kwon.

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Wang, X., Vasilakos, A.V., Chen, M. et al. A Survey of Green Mobile Networks: Opportunities and Challenges. Mobile Netw Appl 17, 4–20 (2012). https://doi.org/10.1007/s11036-011-0316-4

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Keywords

  • mobile networks
  • energy efficiency
  • green technique