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Sensors 2014, 14(12), 22737-22753; doi:10.3390/s141222737

Virtualization of Event Sources in Wireless Sensor Networks for the Internet of Things

Centro de Investigación en Tecnologías Software y Sistemas Multimedia para la Sostenibilidad (CITSEM), Universidad Politécnica de Madrid (UPM), Edificio La Arboleda, Campus Sur, Carretera de Valencia km.7, Madrid 28031, Spain
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Received: 15 October 2014 / Revised: 25 November 2014 / Accepted: 25 November 2014 / Published: 1 December 2014
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Abstract

Wireless Sensor Networks (WSNs) are generally used to collect information from the environment. The gathered data are delivered mainly to sinks or gateways that become the endpoints where applications can retrieve and process such data. However, applications would also expect from a WSN an event-driven operational model, so that they can be notified whenever occur some specific environmental changes instead of continuously analyzing the data provided periodically. In either operational model, WSNs represent a collection of interconnected objects, as outlined by the Internet of Things. Additionally, in order to fulfill the Internet of Things principles, Wireless Sensor Networks must have a virtual representation that allows indirect access to their resources, a model that should also include the virtualization of event sources in a WSN. Thus, in this paper a model for a virtual representation of event sources in a WSN is proposed. They are modeled as internet resources that are accessible by any internet application, following an Internet of Things approach. The model has been tested in a real implementation where a WSN has been deployed in an open neighborhood environment. Different event sources have been identified in the proposed scenario, and they have been represented following the proposed model. View Full-Text
Keywords: wireless sensor networks; internet of things; event-driven; virtualization wireless sensor networks; internet of things; event-driven; virtualization
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Lucas Martínez, N.; Martínez, J.-F.; Hernández Díaz, V. Virtualization of Event Sources in Wireless Sensor Networks for the Internet of Things. Sensors 2014, 14, 22737-22753.

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