Configurable parameters of physical and MAC layer of a new DTT standard wireless return channel to provide Internet connectivity in rural areas of Latin America

espanolEste articulo propone una guia para la configuracion de los parametros de capa fisica y MAC de un nuevo estandar de television digital terrestre (TDT) de segunda generacion concanal de retorno inalambrico denominado DVB-RCT2, particularizando en la capa fisica; (i) los modos de transmision, (ii) las estructuras de rafagas (BS1, BS2, BS3), y (iii) los esquemas de acceso al medio (MAS) para diferentes tamanos de FFT; y en la capaMAC (i) los modos de acceso, considerando un ancho de banda de 6 MHz. Para obtener los datos de esta investigacion se ha emulado las condiciones del canal RCT2 en un laboratorio de radiodifusion, donde se ha generado el flujo de transporte de RCT2, obteniendo valores sobre el funcionamiento tanto de capa fisica como de MAC, que estan representados en tablas, constatando asi las capacidades de DVB-RCT2 sobre DVB-RCT, lo que lo convierte en una interesante alternativa para proporcionar acceso a Internet a zonas rurales. EnglishThis paper proposes the elaboration of a guide to configure the parameters of a physical and MAC layer of a new second-generation digital terrestrial television (TDT) with a wireless return channel called DVB-RCT2, particularly on the physical layer; (i) transmission modes, (ii) the burst structures (BS1, BS2, BS3), and (iii) the medium access schemes (MAS) for different FFT sizes; and as for the MAC layer (i) the access modes by considering an internet band of 6 MHz. To obtain the information, the conditions of the RCT2 channel have been emulated in a broadcasting laboratory, where the transport stream (TS) has been generated to get different values on the operation from both the physical layer and MAC which are represented in different charts that demonstrate the DVB-RCT2 capacity over its predecessor DVB-RCT which makes this proposal an interesting alternative to provide internet access to rural areas.