V.A. Burdin - Dr. Sc. (Eng.), Professor, Pro-rector, Volga State University of Telecommunications and Informatics (Samara). E-mail: burdin@psati.ru A.V. Bourdine - Dr. Sc. (Eng.), Professor, Volga State University of Telecommunications and Informatics (Samara). E-mail: bourdine@psuti.ru