Diseño y validación de la segunda generación del estándar de TDT con canal de retorno inalámbrico, para proveer conectividad a Internet en zonas rurales en Latinoamérica.

Abstract

Internet access in rural areas of Latin America is deficient, since the rural population either does not have access to this technology or does it from public places at a very low speed connection. This situation does not happen with the TV which is more popular and accessible than the Internet, mobile telephony, and even radio. This is why is intended to use the characteristics of the TV broadcast services, specifically Digital Terrestrial Television (DTT) to provide Internet connectivity in places where only the TV signal arrives. Thus DTT technologies such as DVB-RCT published in April 2001 by the European Telecommunications Standards Institute (ETSI), which provides a dedicated wireless return channel in the VHF / UHF for concurrent access from many interactive user terminals using TDMA / OFDMA techniques. As well as DVB-T2 which was published in 2008 by the European standardization Forum (DVB) to efficiently transmit advanced television services such as high definition TV (HDTV) or dimensional TV (3D TV) [1] using OFDM will allow to design a new standard for better performance than RCT that takes advantage of the capacities that give robustness to DVB-T2 and which will be called DVB-RCT2 (Digital Video Broadcasting - Return Channel Terrestrial 2nd Generation), which would consist on a broadcast channel (DL) to receive information from the service provider to the end user, using any DTT technology such as ISDB-Tb, DVB-T or DVB-T2 for this purpose; while for reverse communication (UL) it would properly use the DVB-RCT2 architecture proposed in this PhD study. The aforementioned would make it possible for this new standard to be used throughout Latin America. To validate the design standard, it will be evaluated in terms of coverage and capacity with respect to its predecessor DVB-RCT, and then the channel conditions RCT2 will be emulated in a laboratory. Subsequently socio-economic studies of the new standard will be carried out in order to be able to provide internet connectivity services in rural areas. Finally, the possibility of using 4G wireless networks in the 700 MHz UHF band will be analyzed as well as the band of 1700 MHz (AWS).; El acceso a Internet en zonas rurales de America Latina es deficiente, puesto que la poblacion rural o no tiene acceso a esta tecnologia o lo hace desde lugares publicos a una muy baja velocidad de conexion. Esta situacion no sucede con la TV la cual es mas popular y accesible que el Internet, la telefonia movil, e incluso que la radio. Es por esto que se pretende utilizar las caracteristicas de los servicios de difusion de TV, especificamente los de Television Digital Terrestre (TDT) a fin de proporcionar conectividad a Internet en lugares donde solo llega la senal de TV. Es asi que tecnologias de TDT como DVB-RCT publicada en Abril de 2001 por el Instituto de Normas de Telecomunicaciones Europeo (ETSI - European Telecommunications Standards Institute), que provee un canal de retorno inalambrico dedicado en las bandas de VHF/UHF para el acceso concurrente desde muchos…