A Review of Properties and Functions of Narrow Band Internet of Things and its Security Requirements

IOT is a new web sample based on the fact that there are many things and entities other than humans that can connect to the Internet. This fact means that machines or things can automatically interconnected without the need of interacting with humans and thus become the most important entities that create Internet data. In this article, we first examine the challenges of IOT. Then we introduce features of NB- IOT through browsing current international studies on NB- IOT technology in which, we focus on basic theories and key technologies , such as the connection number analysis theory, the theory of delay analysis, the coating increase mechanism , low energy consumption technology, and the connection of the relationship between signaling and data .Then we compare some functions of NB- IOT and other wireless telecommunication technologies in terms of latency, security, availability, data transfer speed, energy consumption, spectral efficiency, and coverage area . Finally, we review and summarize NB- IOT security requirements that should be solved immediately. These topics are provided to overview NB- IOT which can offer a complete familiarity with this area.