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Pré-Publication, Document De Travail Année : 2009

Optimal timeouts for power management under renewal or hidden Markov processes for requests

Résumé

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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Dates et versions

hal-00412509 , version 1 (01-09-2009)
hal-00412509 , version 2 (04-06-2010)
hal-00412509 , version 3 (09-06-2010)
hal-00412509 , version 4 (12-03-2012)

Identifiants

  • HAL Id : hal-00412509 , version 3

Citer

Victor Ciriza, Laurent Donini, Jean-Baptiste Durand, Stéphane Girard. Optimal timeouts for power management under renewal or hidden Markov processes for requests. 2009. ⟨hal-00412509v3⟩
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