The ubiquity of the internet led to a diverse number of devices referred to as the “things” to have online access. The internet of things (IoT) framework's infrastructure is formed by sensors, actuators, computer servers, and the communication network. Within this framework, the chapter focuses on IoT interoperability challenges through virtualization agility. The use of SDN/NFVs aims to face the 5G interoperability challenge by allowing the automatic deployment and programming of network services. Consequently, virtual gateways need to be used so that interoperability is ensured between various objects and technologies. As a result, experiments will be performed on various IoT platforms which consist of physical and virtual parts. In specific, the process will be on top of a testbed so that MQTT, CoAP, and UDP protocols will be instantiated and set up in order to provide an interoperable layer using a virtual gateway.
This article focuses on IoT interoperability challenges that limit the applicability of IoT-related services due to the variety of IoT data protocols utilized by different sensors and data nodes. Through the agility brought by virtualization, which allows gateway functions to be deployed on demand in an agile manner, this chapter discusses the concept of interoperability provision over heterogeneous IoT data protocols. More specifically, this chapter discusses the problem of interoperability in IoT domains by introducing the most popular IoT data protocols that are commonly used today. Then, a proposed solution is described based on the agility offered by virtualized infrastructures with SDN/NFV capabilities. The basic functionalities of these technologies are briefly presented and finally a proposed approach towards the deployment on-demand of date protocol GWs is described.
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