Modeling and Analyzing Digital Television System to Improve Visualization and Resolution of Broadcasting Based on Digital Video Broadcasting

Abstract

Recently, the DVB-C standard is used to perform the function of transmitting digital television signals through communication cables and transmitting signals with the ability to maintain the speed and reliability of digital video streams as well as audio streams to be displayed online via television without delay and with an acceptable low BER. In this article, the DVB-C standard was used to perform the same functions mentioned above by proposing a model using MPEG-4 streams of digital video and image from the transmitter with the use of QAM64 modulation technology with reliability assurance to meet the requirements of the future in television broadcasting. Communication system toolkit in MATLAB Simulink is utilized to implement the proposed model. In order to build the channel for the proposed system, the Adaptive White Gaussian Noise (AWGN) channel is utilized. The power spectrum density is calculated, which were acceptable with the guarantee of no delay. Also, the resolution is enhanced in rate of 98%. Also, the input signal and the output signal are compared, and the semi complete match has obtained. The proposed model was created using the MATLAB 2023B simulation and program packages.