Reducing costs and pollution in cellular networks
Résumé
Cellular wireless networks are expected to provide high-quality audio and video services while enabling fast and low-cost Internet access to mobile users. The need for green cost-efficient networks is twofold: reduce the service price and preserve the environment. In this work, we discuss the various strategies that help reduce infrastructure costs, power costs, and greenhouse gas (GHG) emissions with no impairments on the quality of network services. These strategies range over a wide area from enhancing the electronics, to developing new energy-aware radio access protocols, to deploying enhanced base stations with tunable capacity. To reduce both capital and operational expenditures, and the GHG footprint, manufacturers propose new compact installation with lightweight antenna systems, very efficient power amplifiers, and efficient hardware and software. The resulting economy can be up to 50 percent or more by reducing the electricity bill, sparing the use of air conditioning, and deploying compact sites that would seldom require maintenance. Recent scientific publications confirm that a very high gain could be achieved by optimizing the use of base stations proactively, and huge additional improvements could be obtained by optimizing power saving mechanisms by leveraging traffic statistics.
Domaines
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Est référencée par hal-00640958 Objet présenté à une conférence Angelos Chatzipapas, Sara Alouf, Vincenzo Mancuso. On the Minimization of Power Consumption in Base Stations using on/off Power Amplifiers. 2011 IEEE Online Conference on Green Communications, Sep 2011, Online, France. pp.18-23, ⟨10.1109/GreenCom.2011.6082501⟩. ⟨hal-00640958⟩
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Référence hal-00640984 Objet présenté à une conférence Amar Prakash Azad, Sara Alouf, Eitan Altman, Vivek Borkar, Georgios Paschos. Optimal sampling for state change detection with application to the control of sleep mode. 48th IEEE Conference on Decision and Control (CDC 2009), Dec 2009, Shanghai, China. pp.1645-1650, ⟨10.1109/CDC.2009.5400669⟩. ⟨hal-00640984⟩
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Référence hal-00641076 Objet présenté à une conférence Sara Alouf, Eitan Altman, Amar Prakash Azad. Analysis of an M/G/1 Queue with Repeated Inhomogeneous Vacations with Application to IEEE 802.16e Power Saving Mechanism. 5th International Conference on Quantitative Evaluation of Systems (QEST '08), Sep 2008, Saint-Malo, France. pp.27-36, ⟨10.1109/QEST.2008.37⟩. ⟨hal-00641076⟩