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ThinkMind // UBICOMM 2010, The Fourth International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies // View article ubicomm_2010_12_40_10144


A One-Shot Dynamic Optimization Methodology for Wireless Sensor Networks

Authors:
Arslan Munir
Ann Gordon-Ross
Susan Lysecky
Roman Lysecky

Keywords: Wireless sensor networks; dynamic optimization; application metric estimation

Abstract:
Wireless sensor networks (WSNs), consisting of autonomous sensor nodes, have emerged as ubiquitous networks which span diverse application domains (e.g., health care, logistics, defense) each with varying application requirements (e.g., lifetime, throughput). Sensor nodes possess tunable parameters (e.g., processor voltage, sensing frequency), which enable platform specialization for particular application requirements. WSN application design can be daunting for application developers, which are oftentimes not trained engineers (e.g., biologists, agriculturists) who wish to utilize the sensor-based systems within their given domain. Dynamic optimizations enable sensor-based platforms to tune parameters in-situ to automatically determine an operating state. However, rapidly changing application behavior and environmental stimuli necessitate a lightweight and highly responsive dynamic optimization methodology. In this paper, we propose One-Shot - a lightweight dynamic optimization methodology that determines initial tunable parameter settings to give a high-quality operating state in emph{One-Shot} for time-critical and highly constrained applications. Results reveal that One-Shot solution is within 5.92% of the optimal solution on average. To assist dynamic optimizations in determining an operating state, we propose an application metric estimation model to establish a relationship between application metrics (e.g., lifetime) and sensor-based platform parameters.

Pages: 287 to 293

Copyright: Copyright (c) IARIA, 2010

Publication date: October 25, 2010

Published in: conference

ISSN: 2308-4278

ISBN: 978-1-61208-100-7

Location: Florence, Italy

Dates: from October 25, 2010 to October 30, 2010

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