Wireless sensing with power constraints

Orhan C. Imer, Tamer Başar

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

We introduce two conceptual models for wireless sensing and control with power-limited sensors and controllers. The limited battery power of the wireless device is captured in the models by imposing hard constraints on either the number of available transmissions the device can make, or on the number of cycles it can stay awake. Such hard constraints can be viewed as a measurement budget, under which estimation or control policies will have to be developed over a given decision horizon. Among the two representative models studied here, the first one is one of optimal scheduling of a finite measurement budget for a Gauss-Markov process over an observation horizon. The second one is an optimal estimation problem where the number of transmissions the wireless sensor can make is limited to a number, M, which is less than the observation horizon, N. It is shown that both problems can be solved by employing dynamic-programming type arguments, and their solutions have a threshold characterization.

Original languageEnglish (US)
Title of host publicationAdvances in Control Theory and Applications
EditorsClaudio Bonivento, Carlo Rossi, Lorenzo Marconi
Pages129-160
Number of pages32
DOIs
StatePublished - 2007

Publication series

NameLecture Notes in Control and Information Sciences
Volume353
ISSN (Print)0170-8643

Keywords

  • Dynamic programming
  • Optimal scheduling
  • Power-limited estimation
  • Threshold policies
  • Wireless sensing and control

ASJC Scopus subject areas

  • Library and Information Sciences

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