An MDP-based dynamic optimization methodology for wireless sensor networks

Arslan Munir, Ann Gordon-Ross

Research output: Contribution to journalArticlepeer-review

Abstract

Wireless sensor networks (WSNs) are distributed systems that have proliferated across diverse application domains (e.g., security/defense, health care, etc.). One commonality across all WSN domains is the need to meet application requirements (i.e., lifetime, responsiveness, etc.) through domain specific sensor node design. Techniques such as sensor node parameter tuning enable WSN designers to specialize tunable parameters (i.e., processor voltage and frequency, sensing frequency, etc.) to meet these application requirements. However, given WSN domain diversity, varying environmental situations (stimuli), and sensor node complexity, sensor node parameter tuning is a very challenging task. In this paper, we propose an automated Markov Decision Process (MDP)-based methodology to prescribe optimal sensor node operation (selection of values for tunable parameters such as processor voltage, processor frequency, and sensing frequency) to meet application requirements and adapt to changing environmental stimuli. Numerical results confirm the optimality of our proposed methodology and reveal that our methodology more closely meets application requirements compared to other feasible policies.

Original languageEnglish (US)
Article number5963653
Pages (from-to)616-625
Number of pages10
JournalIEEE Transactions on Parallel and Distributed Systems
Volume23
Issue number4
DOIs
StatePublished - 2012

Keywords

  • dynamic optimization
  • MDP.
  • Wireless sensor networks

ASJC Scopus subject areas

  • Signal Processing
  • Hardware and Architecture
  • Computational Theory and Mathematics

Fingerprint

Dive into the research topics of 'An MDP-based dynamic optimization methodology for wireless sensor networks'. Together they form a unique fingerprint.

Cite this