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Power Optimization in Embedded Systems via Feedback Control of Resource Allocation

In English

Författare

  • Martina Maggio
  • Henry Hoffmann
  • Marco Domenico Santambrogio
  • Anant Agarwal
  • Alberto Leva

Summary, in English

Embedded systems often operate in so variable con- ditions that design can only be carried out for some worst-case scenario. This leads to over-provisioned resources, and undue power consumption. Feedback control is an effective (and not yet fully explored) way to tailor resource usage online, thereby making the system behave and consume as if it was optimized for each specific utilization case. A control-theoretical methodology is here proposed to complement architecture design in a view to said tailoring. Experimental results show that a so addressed architecture meets performance requirements, while consuming less power than any fixed (i.e., uncontrolled) one capable of attaining the same goals. Also, the methodology naturally induces computationally lightweight control laws.

Publiceringsår

2013

Språk

Engelska

Sidor

239-246

Publikation/Tidskrift/Serie

IEEE Transactions on Control Systems Technology

Volym

21

Issue

1

Dokumenttyp

Artikel i tidskrift

Förlag

IEEE - Institute of Electrical and Electronics Engineers Inc.

Ämne

  • Control Engineering

Nyckelord

  • Computing systems
  • control systems
  • embedded systems
  • power consumption
  • self-adaptive systems.

Status

Published

Forskningsgrupp

  • LCCC

ISBN/ISSN/Övrigt

  • ISSN: 1558-0865