Online device-level energy accounting for wireless sensor nodes

  • Energy is the crucial factor for the lifetime of wireless sensor networks. Nonlinear battery effects and nonuniform workload distribution can lead to early node failures. This makes it necessary to manage energy consumption. But to manage energy it is essential to know how much energy is spent by the system. Additionally, for a more fine-grained management it is necessary, to know where the energy is spent. This can be a complicated task, since nodes are not identical due to device variations and the consumption can change over time. In this paper we present an online energy accounting approach which focuses on simplicity instead on fine granularity and timing accuracy. We argue that the efficacy of an energy accounting model depends more on the input consumption data than on exact timing, especially when the real consumption varies between nodes and in time. Results show that this approach is capable of correctly accounting the energy that nodes spend in scenarios with deviating environment conditions.

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Metadaten
Author: André Sieber, Jörg Nolte
ISBN:978-3-642-36672-7
Title of the source (English):Wireless Sensor Networks, Proceedings of the 10th European conference on Wireless Sensor Networks, Ghent, Belgien, 2013
Publisher:Springer
Place of publication:Berlin [u.a]
Document Type:Conference publication peer-reviewed
Language:English
Year of publication:2013
Tag:Energy accounting; Energy measurements; Wireless sensor networks
First Page:149
Last Page:164
Series ; volume number:Lecture notes in computer science ; 7772
Faculty/Chair:Fakultät 1 MINT - Mathematik, Informatik, Physik, Elektro- und Informationstechnik / FG Verteilte Systeme und Betriebssysteme
Institution name at the time of publication:Fakultät für Mathematik, Naturwissenschaften und Informatik (eBTU) / LS Verteilte Systeme / Betriebssysteme
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