IOT: Challenge and Recent Research Directions

Recently, IOT has emerged as a new technology that is used to express a modern wireless telecommunication network, and it can be defined as an intelligent and interoperability node interconnected in a dynamic global infrastructure network, also it seeks to implement the connectivity concept of anything from anywhere at anytime   Indeed, the IOT environment possesses a large spectrum of challenges has a broad impact on their performance, which can be divided into two categories, I) General challenges: such as communication, heterogeneity, virtualization and security. II) Unique challenges: such as wireless sensor network (WSN), Radio Frequency Identification (RFID), and finally Quality of service (QOS) that is considered as a common factor between both general and special challenges. In addition, this paper highlights the main applications of the IOT.