Métodos para calcular percentual de área de cobertura a partir de dados advindos do radio mobile

Abstract

Radio Mobile is a free software tool intended for use in amateur radio and radio frequency (RF) coverage planning area, often used for simulation of coverage of a BS (Base Station), repeater station or other network of radio. To perform the coverage prediction, Radio Mobile implements several parameters related to the propagation of radio waves such as ITM (Irregular Terrain Model) propagation model, reflection, diffraction, radio wave dispersion, transmission power, antenna type, among others. Despite the prediction of the coverage area, it is not possible to generate the percentage of coverage of the area, but Radio Mobile is capable of generating a raster file with information regarding the coverage prediction performed. This work presents two proposals to cover this gap, the first uses the developed plugin called Radio Coverage – Radio Mobile that will be integrated into QGIS and the second proposal will use the Streamlit framework together with the GeoPandas geoprocessing library and the map representation library. folium. Coverage predictions from 28 cities around the world at 250 MHz and 450 MHz were used to present the performance of the proposals, succeeding in calculating the percentage of coverage from the data from the raster file generated in Radio Mobile. The proposals also perform the coverage calculation for predictions with insufficient data. For the prediction at 250 MHz, a maximum absolute error of percentage of coverage in relation to the real percentage of 0.41%, relative error of 0.515% and average relative error of 0.140% was obtained. For the predictions at 450 MHz, an absolute error of percentage of coverage of 0.37%, relative error of 0.510% and average relative error of 0.138% were obtained, results considered satisfactory in the performance of the proposals.