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IoT Interoperability on Top of SDN/NFV-Enabled Networks

IoT Interoperability on Top of SDN/NFV-Enabled Networks

Vaios Koumaras (INFOLYSIS P.C., Greece), Marianna Kapari (INFOLYSIS P.C., Greece), Angeliki Papaioannou (INFOLYSIS P.C., Greece), George Theodoropoulos (INFOLYSIS P.C., Greece), Ioannis Stergiou (INFOLYSIS P.C., Greece), Christos Sakkas (INFOLYSIS P.C., Greece), and Harilaos Koumaras (NCSR “Demokritos”, Greece)
Copyright: © 2019 |Pages: 26
DOI: 10.4018/978-1-5225-8555-8.ch008
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Abstract

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.
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Introduction

Internet of Things (IoT) focuses on the interconnectivity amongst people, sensors, actuators and processes. This term aims on the connection of various devices in order to provide data analytics and automation (Haseeb, Hashim, Khalifa, & Ismail, (2017)). An important requirement of IoT is ubiquitous connectivity and in order to achieve it, applications are needed so as to support the various sets of devices that will be used as well as communication protocols (Buyya & Vahid Dastjerdi, (2016)). Devices as such can be for example a smartwatch, a fitness band (Ranger, 2018), a television, a car and so on (Rouse, 2018). There is the concept of a digital home in which various daily devices (for example appliances) go online, are connected and allow data exchange. Therefore, various sensing devices like Radio Frequency Identification Devices (RFID), scanners, GPS and so on are combined in order to form a wider network. The aim of that wider network is to have various devices connected and make possible the identification and management of them (Liu & Lu, (2012)). Due to the variety of devices being connected together in order to allow data exchange, interoperability issues are encountered, which limit the applicability of IoT-related services due to the variety of IoT data protocols utilized by different sensors and data nodes. This chapter discusses the problem of interoperability in IoT domains by introducing the most popular IoT data protocols that are commonly used today. In addition, virtual gateways will be needed in order to ensure interoperability amongst objects and technologies and experiments using the protocols MQTT, CoAP and UDP will be performed.

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