St. Petersburg State University of Telecommunications

About: St. Petersburg State University of Telecommunications is a education organization based out in Saint Petersburg, Russia. It is known for research contribution in the topics: Computer science & The Internet. The organization has 408 authors who have published 465 publications receiving 2160 citations.

On Application of Parabolic Equation Method to Propagation Modeling in Millimeter-Wave Bands

Abstract: This research studies the millimeter-wave (mmWave) propagation mechanisms and corresponding numerical methods. 5G mobile communication systems are expected to operate in mmWave bands, thus the development of the mmWave propagation models is vital for the wireless communication study. In contrast to most other publications, this research is based on the electromagnetic theory and rigorous differential equations. Diffraction, scattering, refraction and attenuation of the radio waves can be computed and visualized. Arbitrary terrain profiles and weather conditions can be accounted. The widely used parabolic equation (PE) framework is applied. State-of-the-art PE based numerical methods are considered with a focus on the mmWave propagation. Numerical examples under various propagation conditions are given.

Resource Allocation for the Provision of Augmented Reality Service

Abstract: This paper will look at the method for selecting the structural parameters of a service system when providing augmented reality service is proposed. The particular features of service provision, the quality of its perception are considered and the quality time indicators assessment model is proposed. As optimization goal, the formulation of the service system resources allocation task is given.

Combine method of forecasting VANET cybersecurity for application of high priority way

Abstract: Article is devoted to cybersecurity of VANET (Vehicle Ad hoc NETworks), and its applications for the solution to the problem of ensuring priority way at intersections with traffic lights for public transportation (buses, trolleybuses, trams, light railway, share taxi, etc.) and special purpose transport (fire trucks, cars of emergency medical service, police, emergency and special services).

The Airtime Resource Model Of The OFDM Channel In The Task Of The IEEE 802.11 Network Efficiency Estimation

Abstract: This article discusses the efficiency of the IEEE 802.11ac standard amendment from airtime resource usage point of view. An OFDM channel model is proposed as a function between its basic parameters and the application conditions. Analytical models are obtained for the data bits per OFDM symbol and the data frame transmission time as a function of the signal to noise ratio for the IEEE 802.11ac standard amendment. The model analysis shows that the error of the model is less than 6% for the most of the data frame size values. The proposed analytical models can be used to assess the effectiveness of the network and thus help in the design process of the networks.

Information technologies in the formation of clusters of perception of information in students with hearing impairments

Abstract: The article discusses issues with the peculiarity of using information technology to study the features of perception of information in students with hearing impairments. Thanks to the use of information technology, a method for clustering technical science students with hearing disabilities connected with so-called image thinking phenomenon into subgroups with different characteristics of the information perception in the learning process was created.Employed methods and research strategy of the issue are presented in section 1. Based on the methodology of R. Cattell (form C) and using the modification of the test questionnaire of A. Mehrabian non-metric learning assessment scale using novel clusterization algorithm was proposed. Approbation of the proposed scale was conducted during the survey among the university students of technical specialties. The processing of survey results was conducted in Matlab based software, which was developed as an express method that allows to form personal, intellectual characteristics of hearing impaired students, as well as their motivational basis for learning. Analysis of the results obtained by the software is provided in section 2.Section 3 of the article includes discussion of the results and recommendations to adopt the real-virtual environment of education, that allows to increase the efficiency of education for students with different types of hearing disabilities. A novel interaction model between teacher and students is also proposed.