ABSTRACT
Internet of Things (IoT) is one realization of Machine Type Communication (MTC). MTC devices can be low-complexity, long-range, low-power, or broadband devices. Narrowband–IoT (NB-IoT) devices can be sensors, actuators, wearables, and cameras which form a large number of connected devices or connected "things" such as in smart buildings and sensors in a gas station. The new Long Term Evolution (LTE) NB-IoT standard introduced by 3rd Generation Partnership Project is a stripped version of the full-fledged LTE system in order to keep it as simple as possible while meeting the goals of low cost, minimal power consumption, and extended battery lifetime. LTE introduces many advanced features compared to its predecessors and offers several advantages such as high speed, low latency, higher spectrum efficiency, simplified and all-Internet Protocol core network, air interface based on Orthogonal Frequency Division Multiple access, and higher cell capacity. The chapter presents an overview of the key concepts discussed in this book.
