Impacts of Different Altitudes on 5G Performance: A Case Study of a Public Hospital in Central Bangkok

This paper presents an evaluation of the performance of 5G when the altitude of the test points is changed. In this study, the high-rise building in the crowded public hospital in the urban area of Bangkok that supports a lot of patients every Monday to Friday was selected as the place for the field tests. Two smartphones from the same vendor, which supports 5G, that were installed with the Speedtest application were used as the tools for this study. The tests were conducted on the first floor and the twenty-fourth floor for data gathering. After the analysis using a statistical technique, it has been found from the analyzed results that the download speeds tend to decrease when the altitude of the test points is increased. This means that the indoor coverage improvement of 5G is required for high-rise buildings.