Document Type

Conference Proceeding

Publication Date

2005

Publication Title

Proceedings of the 2005 IEEE Mid-Summer Workshop on Soft Computing in Industrial Applications

Publisher

Institute of Electrical and Electronics Engineers

First page number:

208

Last page number:

213

Abstract

Dynamic power management (DPM) refers to the strategies employed at system level to reduce energy expenditure (i.e. to prolong battery life) in embedded systems. The trade-off involved in DPM techniques is between the reductions of energy consumption and latency suffered by the tasks. Such trade-offs need to be decided at runtime, making DPM an on-line problem. We formulate DPM as a hybrid automaton control problem and integrate stochastic control. The control strategy is learnt dynamically using stochastic learning hybrid automata (SLHA) with feedback learning algorithms. Simulation-based experiments show the expediency of the feedback systems in stationary environments. Further experiments reveal that SLHA attains better trade-offs than several former predictive algorithms under certain trace data.

Keywords

Batteries; Embedded computer systems – Energy consumption; Energy conservation; Learning models (Stochastic processes)

Comments

©2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

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