Estudio de factibilidad de un radioenlace implementado con equipos de radio definido por software

Abstract

The present work includes a study of a feasibility of a radio link. This study used a Software Defined Radio (SDR), and equipment manufactured by Analog Devices Inc (ADI), specifically the Adalm Pluto model. The characteristics of this radiofrequency were obtained from the technical information provided by the manufacturer. Some measurements were done in a laboratory environment. Subsequently, the link was designed for the range of elements available. In today’s society, we can count on acquiring antennas tuned to a frequency of 2.4 GHz, which allows using this as the design frequency. To improve the conditions of the link we add a small amplifier for better signal. The Modulations: phase shift modulation in Displacement quadrature (QPSK), Quadrature Amplitude Modulation (QAM) and Displacement Modulation Gaussian minimum (GMSK) was programmed in the GNU-Radio software. Finally, the results obtained were: the maximum distance reached to implement a radio link is 1100 meters applying the International Telecommunication Union (ITU) recommendations to evaluate the radio link; the transmit power of the Adalm Pluto is between 3.46 dBm and -2.69 dBm; and, the receiver does not allow power signals higher than -40 dBm and lower than -78 dBm.