This paper addresses the main two types of video delivery networks deployed into digital television services throughout the years. Underlying and Overlay networks are described in order to introduce how the physical infrastructure and network architecture impacted on the modeling of the latest video content delivery schemes. The convergence of different video delivery networks, in a technical sense, is a real thing and may disrupt the broadcasting industry in the long-term.
In the last years, the transmission of signals has been a widely approached theme, aiming the creation of methodologies that make channels increasingly efficient. Based on that, the present study implements a model based on discrete events applied to a broadcasting system entitled hybrid method, using the Simulink simulation environment of the MATLAB software. This study has the objective of improve the transmission of content, through a pre-coding process of bits applying discrete events in the signal before of the modulation process. This proposal brings a different approach, in which the signal transmission on the channel is realized in the discrete domain with the implementation of discrete entities in the process of bit generation. The results show better computational performance related to time and memory utilization related to the compression of the information, showing improvement 9.61 to 26,5%, respectively.
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