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Adaptive GPS duty cycling and radio ranging for energy-efficient localization

Jurdak, Raja, Corke, Peter, Dharman, Dhinesh, & Salagnac, Guillaume (2010) Adaptive GPS duty cycling and radio ranging for energy-efficient localization. In Proceedings of the 8th ACM Conference on Embedded Networked Sensor Systems - SenSys '10, Association for Computing Machinery (ACM), ETH Zurich, Zurich, pp. 57-73.

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Abstract

This paper addresses the tradeoff between energy consumption and localization performance in a mobile sensor network application. The focus is on augmenting GPS location with more energy-efficient location sensors to bound position estimate uncertainty in order to prolong node lifetime. We use empirical GPS and radio contact data from a largescale animal tracking deployment to model node mobility, GPS and radio performance. These models are used to explore duty cycling strategies for maintaining position uncertainty within specified bounds. We then explore the benefits of using short-range radio contact logging alongside GPS as an energy-inexpensive means of lowering uncertainty while the GPS is off, and we propose a versatile contact logging strategy that relies on RSSI ranging and GPS lock back-offs for reducing the node energy consumption relative to GPS duty cycling. Results show that our strategy can cut the node energy consumption by half while meeting application specific positioning criteria.

Impact and interest:

9 citations in Scopus
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ID Code: 41589
Item Type: Conference Paper
Keywords: Sensor Network, Localization, Energy Aware
DOI: 10.1145/1869983.1869990
ISBN: 9781450303446
Subjects: Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > DISTRIBUTED COMPUTING (080500) > Networking and Communications (080503)
Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > DISTRIBUTED COMPUTING (080500) > Ubiquitous Computing (080504)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2010 Association for Computing Machinery
Deposited On: 09 May 2011 09:01
Last Modified: 01 Mar 2012 10:03

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