A.Yu. Insarov1, R.R. Fayzullin2, V.I. Il’in3

1 Intis Telecom LLC (Kazan, Russia)

2 Kazan National Research Technical University named after A.N. Tupolev – KAI (Kazan, Russia)

3 Kazan Federal University (Kazan, Russia)

1 insarov@intistele.com, 2 rrfayzullin@kai.ru, 3 vilin43@mail.ru