Análisis de cobertura radioeléctrica para la red 4G de CNT utilizando dispositivos móviles en el centro histórico de Ambato.

Abstract

In the present investigation, an analysis of radio coverage is carried out for the 4G network of the National Telecommunications Corporation (CNT) using mobile devices in the Historic Center of Ambato. Measurements of the Received Reference Power Signal (RSRP) radio parameter were carried out in 13 main streets and 20 secondary streets during 7 days using the paid application Network Cell Info Lite version 6.7.4. In addition, the simulation of the network was carried out in a professional software, taking realistic technical parameters. The data collection campaign was carried out on foot and by vehicle with two mobile devices, one mid-range and the other low-end. To evaluate the network, the SMA-QoS-9 parameter established by ARCOTEL for compliance with the quality of service in 4G technology was used, with which it was concluded that the level of coverage is below the required percentage, since the network has a total coverage percentage (%C) of 84.71% for walking measurements and 76.24% for vehicle measurements. These results were attributed to the fact that the city of Ambato is not a completely flat demographic area. On the other hand, the simulated network complies with the required percentage (>=95%) of values greater than or equal to the minimum value (>= -100 dBm). In addition, a worsening of 2.53 dBm was evidenced in the RSRP values of the vehicle measurements with an average of -94.14 dBm compared to the walking measurements that have -91.61 dBm, factors such as being in an indoor environment and the Doppler effect, caused the deterioration of the signal received when the measurements were taken in the vehicle. Cuenca, Vicente Rocafuerte, Juan León Mera and Quito streets are those with the lowest RSRP averages (-103.08 dBm to -100.04 dBm).