Diseño e implementación de enlaces inalámbricos para analizar los parámetros técnicos que garanticen la transmisión de video, mediante enlaces punto a punto y punto multipunto.

Abstract

The objective of this work is the design and implementation of wireless links to analyze the technical parameters which guarantee the transmission of video (video surveillance, video on demand and IPTV), through point-to-point and point-multipoint links in Riobamba and Quimiag parish. The design and simulation of the links was carried out in the Radio Mobile software, in order to observe the technical characteristics of the link. After that, the antennas were installed and the technical parameters in the video transmission were monitored, varying the bandwidth from 10MHz and 20MHz, and the modulations BPSK1 / 2, QPSK1 / 2, QPSK3 / 4,16QAM1 / 2, 16QAM3 / 4, 64QAM2 / 3, 64QAM3 / 4 and 64QAM5 / 6. In the case of video surveillance, the H.265, H.264B, H.264 and H264H encoding and compression were varied. In video on demand and IPTV, only the modulation stage was carried out, since it already has a compression and coding stage. To obtain the quality of service, the Wireshark program was used and the WinBox program for link quality. Descriptive statistics were used to calculate the jitter and delay (quality of service), since the data monitoring was not carried out under the same conditions (means of propagation, monitoring schedules, weather conditions and equipment), therefore the data did not they meet a normal distribution. After analyzing the quality of service and link quality, the recommended configuration for point-to- point and point-multipoint wireless links for urban areas are 16QAM3 / 4 and 64QAM5 / 6 modulations, and for rural areas 64QAM5 / 6 modulations and 64QAM3 / 4 with a 20MHz bandwidth for SD and HD quality. For future research, it is proposed to collect data under the same conditions, so that the data comply with a normal distribution and perform a more in- depth analysis using inferential statistics.