S.B. Makarov1, R.A. Davtyan2, A.K. Aharonyan3, M.V. Markosyan4, V.H. Avetisyan5, 

S.V. Zavjalov6, S.V. Tomashevich7

1,5,6 Peter The Great St. Petersburg Polytechnic University (Saint-Petersburg, Russia)

2−5 Russian-Armenian University

2−5 Yerevan Telecommunication Research Institute CJSC

7 St. Petersburg State University of Telecommunications n.a. prof. M.A. Bonch-Bruevich (St. Petersburg, Russia)