title: Virtualization of event sources in wireless sensor networks for the internet of things.
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.
authors.affiliation: 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. nestor.lucas@upm.es.
authors.forename: Néstor
authors.initials: N
authors.lastname: Lucas Martínez
authors.affiliation: 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. jf.martinez@upm.es.
authors.forename: José-Fernán
authors.initials: JF
authors.lastname: Martínez
authors.affiliation: 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. vicente.hernandez@upm.es.
authors.forename: Vicente
authors.initials: V
authors.lastname: Hernández Díaz