“…As it is the case with CAPEX, the number of connected users as well as the size of the area heavily influence OPEX costs (more number of users—more users to be provisioned, larger area, more equipment to manage, and more power needed, etc); hence, our analysis distinguishes OPEX costs for all four defined area types. For all calculations, we implemented the methodology presented in the work of Chen et al, our previous work, and the work of Verbrugge et al, and here, we present the aggregated results of our research. As we explained in the previous section, the input parameters used for the calculations are obtained from operators working in similar areas in order to provide realistic results to the highest possible extent.…”