NDLI: Proactive reconfiguration of wireless sensor networks

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Proactive reconfiguration of wireless sensor networks

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Proactive reconfiguration of wireless sensor networks

Content Provider	ACM Digital Library
Author	Viet Ngo, Cuong Geilen, Marc Steine, Marcel Decotignie, Jean-Dominique Serna Oliver, Ramon Basten, Twan Fohler, Gerhard
Abstract	Network dynamics, such as mobility and increase in network load, can influence the performance of a Wireless Sensor Network (WSN). In this paper, we introduce a method which exploits design-time knowledge of the application scenario dynamics to construct a proactive run-time reconfiguration approach. The approach anticipates for the impact that predefined dynamic events can have on the performance of the WSN by switching between various modes of operation defined at design-time. A mode defines the values for the controllable parameters of the network protocol stack. Our approach explicitly differentiates between parameters that can be adapted locally, per node, and those that should be considered globally for the whole WSN. Design-time definition of modes results in a very low run-time overhead as we only require detection of the mode to use and a low overhead synchronization to change global parameters. The approach is made robust by using a recovery approach for nodes unaware of their global mode after, for example, (re-)joining the network. Experiments with an office monitoring deployment and extensive simulations of a cow-health monitoring scenario show that our approach can easily be adopted by practical WSN deployments and results in a significant reduction in resource usage, e.g., power consumption in our examples, at a very low run-time overhead cost.
Starting Page	31
Ending Page	40
Page Count	10
File Format	PDF
ISBN	9781450308984
DOI	10.1145/2068897.2068907
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2011-10-31
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Run-time reconfiguration Wireless sensor networks Proactive Quality-of-service
Content Type	Text
Resource Type	Article

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