Proposal of Community Alarm Systems over Digital Terrestrial Television based on ISDB-T Standard: A Case Study of Ecuador. - Dayanna S. Zhagñnay-Castro; Luis F. Guerrero-Vasquez; Gabriel R. Solano-Sanchez; Edgar E. Ochoa-Figueroa; Jorge O. Ordoñez-Ordoñez; Katherine C. Bustamante-Cacao (LATINCOM, 2020)