V.E. Dementiev - Ph. D. (Eng.), Associate Professor, Department «Telecommunications», Ulyanovsk State Technical University E-mail: vitawed@mail.ru H.A. Abdulkadhim - Post-graduate Student, Department «Telecommunications», Ulyanovsk State Technical University E-mail: hussein73@mail.ru A.G. Frenkel - Post-graduate Student, Department «Telecommunications», Ulyanovsk State Technical University E-mail: j.skvoll@gmail.com