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... support Cellular Internet of Things (CIoT) and ultra-low complexity. NB-IoT was created based on existing cellular or LTE functions by eliminating features such as handover removal, measurements in monitoring channel quality, dual connectivity, and operator aggregation. These features are removed to reduce device costs and increase battery life. Fig. 2. shows the NB-IoT architecture, which consists of five parts [9], namely the NB-IoT terminal, the NB-IoT Base Station, the EPC Core Network, the NB-IoT cloud platform , and the vertical industry center. NB-IoT network is supported directly on cellular networks so that it can expand wherever their network availabe. This has made NB-IoT ...

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... The NB-IoT architecture is depicted in Fig. 13, which is made up of five parts: the NB-IoT terminal, NB-IoT base station, NB-IoT core network, NB-IoT cloud platform, and vertical industry center [66]. ...
... NB-IoT architecture[66]. ...
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