Abstract: The “Internet of Things” (IoT) concept is used to define or reference systems that rely on the autonomous communication of a group of physical objects. The applications areas of the IoT are numerous, including: smart homes, smart cities and industrial automation. IoT systems often provide great benefits to numerous industries and society as a whole. Many of the IoT systems and technologies are relatively novel. The aim of this paper is to provide the last and most innovative contributions concerning the Protocol, Technology, Application, Architecture & Issues of interest in IoT solutions that involve interconnected smart things that interoperate with the objective of solving problems, provide functionality or optimize tasks.

Keywords: IoT, Protocol, Technology, RFID, NFC.