A Review on Internet of Things (IoT)

Internet, a revolutionary invention, is always transforming into some new kind of hardware and software making it unavoidable for anyone.The form of communication that we see now is either human-human or human-device, but the Internet of Things (IoT) promises a great future for the internet where the type of communication is machine-machine (M2M).This paper aims to provide a comprehensive overview of the IoT scenario and reviews its enabling technologies and the sensor networks.Also, it describes a six-layered architecture of IoT and points out the related key challenges.