Evaluación de la QoS en redes HFC para la distribución de aplicaciones de televisión digital interactiva (TDI)/Evaluation of QoS in HFC networks to distribution of interactive digital television (ITV) applications

Applications developed for Interactive Digital Television (iTV) generate a consumption of additional resources to telecommunications network. It is therefore necessary to do an analysis and evaluation of protocols and resources of the telecommunications network used to ensure the proper functioning of such applications, when they come to compete for network resources with other services that are distributed on the network simultaneously. In this article, the researchers present the analysis and evaluation of the performance parameters of the HFC network, when T-Learning applications share network resources with other services such as HTTP, FTP and VoIP. For this purpose, they propose a simulation model which analyzed the throughput, packet loss, delay and jitter on the HFC network when changing the parameter settings offered by the DOCSIS protocol to provide QoS.