A Primer on 3GPP Narrowband Internet of Things (NB-IoT)
  Narrowband Internet of Things (NB-IoT) is a new cellular technology introduced in 3GPP Release 13 for providing wide-area coverage for the Internet of Things (IoT). This article provides an overview of the air interface of NB-IoT. We describe how NB-IoT addresses key IoT requirements such as deployment flexibility, low device complexity, long battery life time, support of massive number of devices in a cell, and significant coverage extension beyond existing cellular technologies. We also share the various design rationales during the standardization of NB-IoT in Release 13 and point out several open areas for future evolution of NB-IoT. 
Y.-P. Eric Wang, Xingqin Lin, Ansuman Adhikary, Asbj\"orn Gr\"ovlen,   Yutao Sui, Yufei Blankenship, Johan Bergman, Hazhir S...
cs.NI cs.IT math.IT