A.V. Borisenkov1, O.V. Goryachkin2, A.S. Lifanov3, V.A. Ruznikov4

1–4 Povolzhskiy State University of Telecommunications and Informatics (Samara, Russia)

1 a.borisenkov@psuti.ru; 2 o.goryachkin@psuti.ru; 3 a.lifanov@psuti.ru; 4 rv@psuti.ru