Assessment of Possibility of Modernization of Hierarchy Code Structure of Multidimensional Signal to Increase the Efficiency of Functioning of Educational and Training Telecommunication Systems (short paper). - Oleksandr Golubenko; Andrii Onysko; Andriy Lemeshko; Andrii Zelnytskyi; Oleg Zabolotnyi; Andrii Zakharzhevskyi; Oleksandr Turovsky (TTSIIT, 2022)