The simulation of error-correcting communication channel for video transmission
I. Ya. Lvovich, Andrey Petrovich Preobrazhenskiy, Oleg Nikolaevich Choporov · 2018 Moscow Workshop on Electronic and Networking Technologies (MWENT) · 2018
The potential noise immunity of different communication system, for example, modems, depends primarily on the choice of the type of signal and the occupied bandwidth of operating frequencies. The throughput of the system depending on the constraints can be maintained due to the expansion of the band, or increase the ratio signal/noise. The ways of improving the performance of communication channel are considered. In the paper the combined variant is proposed for improving the communication - the extension of the alphabet and of the signal spectrum. The functional diagram of the formation of signal-code construction of the information transmission channel of the video image is shown. For the implementation of the scheme Simulink was used. The simulation results of schemes for the probability of error from the ratio signal/noise with different parameters are presented. After analyzing all the design options with different parameters, the most suitable option for a digital modem based on the signal-to-code design are shown.