Fair Configuration Scheme for Random Access in NB-IoT with Multiple Coverage Enhancement Levels

Narrowband Internet of Things (NB-IoT) is a new technology developed to support low-power wide area networks (LPWAN) services. To extend its coverage and decrease transmission power, devices in one NB-IoT cell are divided into several enhancement (CE) levels with different random access configuration. This potentially results unfair access, especially when massive number CE simultaneously accessing the network. work presents an effective strategy configure yield fair performance across levels. An analytical model used estimate each level overall system term normalized throughput average delay. Simulation incorporated verify accuracy model. Different practical assumptions explored examined experiment. The result shows that accurate under various loads. Additionally, proposed search proven be able obtain configuration which acceptable fairly for all