Interoperability in Internet of Things Infrastructure: Classification, Challenges, and Future Work

Abstract

The Internet of Things (IoT) is an important research area, and substantial developments for a wide range of devices and IoT platforms is evident. However, one of the critical issues in IoT is that the different proprietary IoT platforms and systems are still not interoperable; unable to talk with each other. In this paper, we survey the state-of-the-art on interoperability in IoT. First, we provide a classification of techniques and schemes looking at IoT interoperability from different perspectives. For each category, we present the approaches proposed in the papers. Second, we use the interoperability classification as a baseline to compare some of the existing IoT research projects and identify gaps in the existing solutions. Our findings will help domain experts and professionals to get an overview and categorization of existing interoperability solutions in IoT and select an appropriate approach to help increase the number of interoperable IoT products.