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1 Alcatel-Lucent Bell Labs France Nozay 2 Télécom ParisTech 3 LINCS - Laboratory of Information, Network and Communication Sciences

Abstract : —The adoption of Service Oriented Architecture SOA and Semantic Web technologies in the Internet of Things IoT enables to enhance the interoperability of devices by abstracting their capabilities as services and enriching their descriptions with machine-interpretable semantics. This facilitates the discovery and composition of IoT services. The increasing number of IoT services, their dynamicity and geographical distribution require to think about mechanisms to enable scalable and effective discovery. We propose in this paper a semantic based IoT service discovery mechanism that supports and adapts to the dynamicity of IoT services. The discovery mechanism is distributed over a hierarchy of semantic gateways. Within a semantic gateway, we implement mechanisms to dynamically organize its content over time, in order to minimize the discovery cost. This cost is measured in terms of numbers of service-request matching operations performed in a gateway to find suitable services. Results show that our approach enables to maintain a scalable and efficient discovery and limits the number of updates sent to a neighboring gateway.





Author: Sameh Ben Fredj - Mathieu Boussard - Daniel Kofman - Ludovic Noirie -

Source: https://hal.archives-ouvertes.fr/



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