ABSTRACT
This chapter describes a comprehensive uplink coexistence system model for narrowband Internet of Things IoT (NB-IoT) and long-term evolution for the purpose of investigating the potential influence caused by the mismatched sampling rate. Most of the NB-IoT–related research reported in the literature has focused on frame structure design, physical layer analysis, random access network and scheduling, for example. In order to achieve the possibility of quick deployment, the NB-IoT is designed to operate on existing cellular networks, for example, the Evolved Universal Mobile Telecommunications System Terrestrial Radio Access and Global System for Mobile Communication. Three different modes could be assigned for NB-IoT operation—stand-alone mode, in-band mode, and guard-band mode—so that the spectrum resource could be utilized efficiently and flexibly. In addition, an arbitrary sample duration for the NB-IoT device is considered to construct the foundation of sample duration optimization.
