Semantic-based IoT service discovery mechanism for dynamic environments

Speaker : Sameh Benfredj
Telecom Paris Tech/Alcatel Lucent
Date: 16/07/2014
Time: 2:00 pm - 3:00 pm
Location: LINCS Meeting Room 40


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 to enrich 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 mechanisms to enable scalable and efficient discovery. We propose, in this paper, a semantic based IoT service discovery system that supports and adapts to the dynamicity of IoT services. The discovery 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. Results show that our approach enables to maintain a scalable and efficient discoveryand limits the number of updates sent to a neighboring gateway.