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Optimization of power consumption and user impact based on point process modeling of the request sequence

Jean-Baptiste Durand 1 Stéphane Girard 1 Victor Ciriza 2 Laurent Donini 1, 2
1 MISTIS - Modelling and Inference of Complex and Structured Stochastic Systems
Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology, LJK - Laboratoire Jean Kuntzmann, Inria Grenoble - Rhône-Alpes
Abstract : This article addresses the optimal choice of the waiting period (or timeout) that a device should respect before entering sleep mode, so as to optimize a tradeoff between power consumption and user impact. The optimal timeout is inferred by appropriate statistical modeling of the times between user requests. In a test approach, these times are supposed independent, and a constant optimal timeout is inferred accordingly. In a second approach, some dependency is introduced through a hidden Markov chain, which also models specific activity states, like business hours or night periods. This model leads to a statistical framework for computing adaptive optimal timeout values. Different strategies are assessed using real datasets, on the basis of the power consumption, user impact and the frequency of wrong decisions.
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Submitted on : Monday, March 12, 2012 - 11:41:30 AM
Last modification on : Thursday, January 20, 2022 - 5:30:15 PM
Long-term archiving on: : Thursday, June 14, 2012 - 2:57:26 PM


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Jean-Baptiste Durand, Stéphane Girard, Victor Ciriza, Laurent Donini. Optimization of power consumption and user impact based on point process modeling of the request sequence. Journal of the Royal Statistical Society: Series C Applied Statistics, Wiley, 2013, 62 (2), pp.151-165. ⟨10.1111/j.1467-9876.2012.01053.x⟩. ⟨hal-00412509v4⟩



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