Paging-Efficient NB-IoT Resource Allocation for Massive-Connectivity-Enabled Communications in Smart Grid

With the development of the large-scale Internet of Things (IoT) business in the current power wireless private network, the IoT will be more widely used in smart grid. Narrowband IoT can drive smart grid to become more intelligent and scalable. In the current design of NB-IoT in smart grid, certain resources within the narrow-band are dedicated to transmitting paging information for large-scale connections. However, when a large number of power terminals access the network at the same time, the dedicated resources will be overloaded, which will greatly reduce the utilization of the network resources and affect the execution of critical business. In addition, power terminal power consumption will also increase because additional decoding of larger packets is required. In order to improve the quality of service and reliability of the smart grid when carrying largescale connection business, this paper proposes a new resource allocation method, which includes a definition method of paging resource sets and a selection method of corresponding resources. Simulation results show that this method can improve resource utilization while reducing power consumption of the network and the power terminals, thus effectively improving the quality of service and reliability of the power wireless private network of smart grid.