On the selection of connectivity-based metrics for WSNs using a classification of application behaviour

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Abstract

This paper addresses a subset of Wireless Sensor Network (WSN) applications in which data is produced by a set of resource-constrained source nodes and forwarded to one or more sink nodes. The performance of such applications is affected by the connectivity of the WSN, since nodes must remain connected in order to transfer data from sources to sinks. Designers use metrics to measure and improve the efficacy of WSN applications. We aim to facilitate the choice of connectivity-based metrics by introducing a classification of WSN applications based on their data collection behaviour and indicating the metrics best suited to the evaluation of particular application classes. We argue that no suitable metric currently exists for a significant class of applications with the following characteristics: 1) application data is periodically routed or disseminated from source nodes to one or more sink nodes, and 2) the application can continue to function with the loss of source nodes although its useful network lifetime diminishes as a result. We present a new metric, known as Connectivity Weighted Transfer, which may be used to evaluate WSN applications with these characteristics.
Original languageEnglish
Title of host publication2010 IEEE International Conference on Sensor Networks, Ubiquitous, and Trustworthy Computing
Subtitle of host publicationSUTC 2010
PublisherIEEE Computer Society
Pages268-275
Number of pages8
ISBN (Print)978-1-4244-7087-7
DOIs
Publication statusPublished - 7 Jun 2010
Event2010 IEEE International Conference on Sensor Networks, Ubiquitous, and Trustworthy Computing - Newport Beach, California, United States
Duration: 7 Jun 20109 Jun 2010

Conference

Conference2010 IEEE International Conference on Sensor Networks, Ubiquitous, and Trustworthy Computing
Country/TerritoryUnited States
CityNewport Beach, California
Period7/06/109/06/10

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