Service Discovery in the Internet of Things: A Survey

One of the main elements that enables us to benefit from the potential of Internet of Things, is an efficient service discovery mechanism. Many research efforts have been put into the design and implementation of service discovery approaches and tools, though there are still some issues that need further investigation. In this paper, we provide a survey of the most recent works on service discovery in the Internet of Things. We propose a novel classification of existing approaches, based on their architecture, mode of operation, search method and the dependency to Internet protocols. The analysis of studied approaches, demonstrates their advantages and drawbacks, and help reveal future research directions.