5th International ICST Conference on Performance Evaluation Methodologies and Tools

Research Article

Large-Deviations Analysis for Energy-Saving Mechanisms in Wireless Networks

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  • @INPROCEEDINGS{10.4108/icst.valuetools.2011.245734,
        author={Koen De Turck and Dieter Fiems and Stijn De Vuyst and Herwig Bruneel and Sabine Wittevrongel},
        title={Large-Deviations Analysis for Energy-Saving Mechanisms in Wireless Networks},
        proceedings={5th International ICST Conference on Performance Evaluation Methodologies and Tools},
        publisher={ICST},
        proceedings_a={VALUETOOLS},
        year={2012},
        month={6},
        keywords={Energy saving wireless networks large deviations},
        doi={10.4108/icst.valuetools.2011.245734}
    }
    
  • Koen De Turck
    Dieter Fiems
    Stijn De Vuyst
    Herwig Bruneel
    Sabine Wittevrongel
    Year: 2012
    Large-Deviations Analysis for Energy-Saving Mechanisms in Wireless Networks
    VALUETOOLS
    ICST
    DOI: 10.4108/icst.valuetools.2011.245734
Koen De Turck1,*, Dieter Fiems1, Stijn De Vuyst1, Herwig Bruneel1, Sabine Wittevrongel1
  • 1: Ghent University
*Contact email: koen.deturck@gmail.com

Abstract

In wireless telecommunication networks, there is a strong interest in energy efficiency. Sleep-mode mechanisms, which temporarily switch off mobile devices or base stations, are popular means to attain this goal. We look at the performance of different sleep-mode mechanisms with large-deviations tools. These allow us to look at a general multi-user model, for which we obtain a sample path large-deviations principle. As the system equations exhibit discontinuous boundaries, there are some mathematical obstacles to overcome. The results shed light on the trade-off between buffer overflow and energy consumption. We illustrate the results in scenarios with one and multiple mobile stations.