LEGAL SUPPORT STATUS OF ELECTROMAGNETIC SAFETY
- M.Yu. Maslov, Samara Branch of Radio Research & Development Institute (FSUE Branch NIIR-SONIIR), head of the Scientific and educational center, associate professor, Ph.D.; mikem@soniir.ru
- Yu.M. Spodobaev, FSUE Branch NIIR-SONIIR, chief researcher, professor, Dr.Sci.(Tech.); spod@soniir.ru
Keywords: electromagnetic safety, conceptual crisis, contradictions between business entities, direct legal regulation.
A conceptual crisis in the electromagnetic security of telecommunication networks and systems has engulfed the activities of several economic entities and departments and continues to actively penetrate the social sphere. The article considers serious contradictions of economic entities in the field of legal, organizational, methodological, and scientific problems of electromagnetic safety, which are the source of the crisis. The article analyzes the legal mechanisms that have developed in international practice. The Russian Federation is one of the few states that fully assume responsibility for the electromagnetic safety of the population. Currently, there is no direct legal regulation in the field of ensuring the electromagnetic safety of the population of the Russian Federation. It is necessary to develop a Concept and a Federal Law «On Electromagnetic Safety of the Population», which will spell out the agreed subtleties and features of state control over sources of electromagnetic radiation.
ULTRA-BIG DATA IN THE TELECOMMUNICATIONS: TECHNOLOGIES AND PERSPECTIVES
- A.I. Vybornova, The Bonch-Bruevich Saint-Petersburg State University of Telecommunications (SPbSUT), department of communication networks and data transmission (CN&DT), associate professor, Ph.D.; a.vybornova@gmail.com
- A.S. Borodin, representative of PJSC Rostelecom in the ITU, Ph.D.; alexey.borodin@rt.ru
- A.E. Koucheryavy, SPbSUT, head of the department of CN&DT, scientific chief of innovation infocommunications Lab of PJSC Rostelecom in SPbSUT, professor, Dr.Sci.(Tech.); akouch@mail.ru
Keywords: big data, ultra-big data, Internet of Things, augmented reality, holographic communications.
The interest in new technologies and algorithms for processing large amounts of data, that arose at the beginning of the century and contributed to the concept of big data creation and development, had a noticeable impact on the field of telecommunications. However, the amount of data stored and processed in the world continues to grow rapidly, thanks in part to the novel telecommunication applications. This article discusses the concept of ultra-big data as applied to some areas of telecommunications.
THE METHOD OF ESTIMATION FRACTAL DIMENSION OF THE TELECOMMUNICATION NETWORK
- F.H. Nahli, The Bonch-Bruevich Saint-Petersburg State University of Telecommunications (SPbSUT), department of communication networks and data transmission (CN&DT), postgraduate; faridnakhli@gmail.com
- A.I. Paramonov, SPbSUT, department of CN&DT, innovation infocommunications Lab of PJSC Rostelecom in SPbSUT, scientific consultant, professor, Dr.Sci.(Tech.); alex-in-spb@yandex.ru
Keywords: telecommunication network, fractal dimension of the network, cluster growing method, the shortest route, connectivity.
The paper analyzes the fractal dimension of the network and its use for telecommunication networks research and planning. The analysis of the «cluster growing» method for assessing the fractal dimension is given and a new method for assessing the fractal dimension of a network is proposed, based on assessing the network connectivity by finding the shortest paths. The article shows that the assessment of the fractal dimension of the network is an additional characteristic that reflects the topological properties of the network. Comparative analysis of the proposed method and «cluster growing» is given. The results obtained make it possible to select a method and obtain estimates of the fractal dimension of the network, depending on its features.
A SYSTEM FOR DETECTING AND RECOGNIZING MOVING BIOLOGICAL OBJECTS FOR UNMANNED VEHICLES BASED ON INTELLIGENT EDGE COMPUTING
- M.A. Alsweity, The Bonch-Bruevich Saint-Petersburg State University of Telecommunications (SPbSUT), department of communication networks and data transmission (CN&DT), postgraduate; aldonasmar@gmail.com
- A.S.A. Muthanna, SPbSUT, department of CN&DT, associate professor, Ph.D.; ammarexpress@gmail.com
- A.S. Borodin, representative of PJSC Rostelecom in the ITU, Ph.D.; aleksey.borodin@rt.ru
- A.E. Koucheryavy, SPbSUT, head of the department of CN&DT, scientific chief of innovation infocommunications Lab of PJSC Rostelecom in SPbSUT, professor, Dr.Sci.(Tech.); akouch@mail.ru
Keywords: 5G/IMT-2020, IMT-2030, LoRaWAN network, unmanned vehicles, AI, IoT, MEC.
The article discusses the possibility of using onboard platforms to support the terrestrial networks for autonomous vehicles resources as a part of delay-critical applications. Onboard platforms can improve the safety of vehicle rides by delivering time-critical information about the environment to the vehicles, even in remote areas of the world. In this paper, we discuss requirements and potential solutions for supporting the autonomous vehicle infrastructure, as a part of an intelligent transportation system. It is proposed to use energy-efficient sensors along the road, which can connect with each other in a Mesh network. In addition, a new approach for the detection of biological objects activity on the roadside, based on artificial intelligence technologies, is suggested.
TESTING THE NETWORK CODING PROTOCOL NCDP IN A DIAMOND TOPOLOGY NETWORK
- S.S. Vladimirov, Saint Petersburg State University of Telecommunications (SPbSUT), department of communication networks and data transmission (CN&DT), associate professor, Ph.D.; vladimirov.opds@gmail.com
- A.E. Koucheryavy, SPbSUT, head of the department of CN&DT, scientific chief of innovation infocommunications Lab of PJSC Rostelecom in SPbSUT, professor, Dr.Sci.(Tech.); akouch@mail.ru
Keywords: network coding, NCDP protocol, diamond topology.
The results of testing the network coding protocol NCDP for a diamond topology network are presented. The structure of the diamond topology network is considered and a comparison of simple serial transmission with transmission by network coding method is made. The NCDP header structure for data packets and control packets is defined. A virtual laboratory testbed for studying the operation of the protocol is proposed and a comparison of the NCDP protocol with simple sequential data transmission by the average delivery time of a group of packets is performed.
ATTENUATION OF LASER RADIATION IN RAIN
- E.R. Milyutin, Saint Petersburg State University of Telecommunications, department of radio systems and signal processing, professor, Dr.Sci.(Tech.); mma@spbgasu.ru
Keywords: laser, attenuation, rain.
Attenuation of visible and infrared waves in rain is considered. It is shown that the attenuation increases in the presence of absorption in the drop.
FREQUENCY MANIPULATOR WITH MINIMUM SHIFT AND COHERENT DETECTOR
- A.A. Volkov, Russian University of Transport (MIIT), department of automation, telemechanics and communication in railway transport, professor, Dr. Sci.(Tech.); aavolkov2009@rambler.ru
- A.A. Antonov, MIIT, head of the department of automation, telemechanics and communication in railway transport, associate professor, Ph.D.; ant-a-antonov@yandex.ru
- V.A. Kuzyukov, MIIT, department of automation, telemechanics and communication in railway transport, associate professor, Ph.D.; super-1990@yandex.ru
- M.S. Morozov, MIIT, department of automation, telemechanics and communication in railway transport, senior lecturer; raconteurs.mm@gmail.com
Keywords: minimal shift manipulation, phase manipulation, frequency manipulation, coherent detection.
In this article, new versions of a frequency manipulator and a coherent detector with a minimum shift are proposed. The manipulator is based on a self-oscillator, to the oscillatory circuit of which inductance or capacitance is connected in parallel (depending on the sign of the manipulating signal). A new formula is obtained for estimation of gain in noise immunity of coherent detector before non-coherent one.
MODELING THE FREQUENCY CHARACTERISTICS OF THE QUADRATURE THREE-LOOP L-BAND WAVELENGTH BRIDGE
- L.V. Alekseychik, Moscow Power Engineering Institute, professor, FSUE NIIR, scientific adviser, Dr.Sci.(Tech.); AlexeychikLV.@mpei.ru
- N.V. Andrievsky, FSUE NIIR, head of a department; andrievsky@niir.ru
Keywords: quadrature loop bridge, thermal losses in transmission lines, decomposition method, scattering matrix, modeling in the LabVIEW environment.
The paper presents the results of numerical simulation of the frequency characteristics of the L-range quadrature three-loop bridge (QLB), based on the symmetric striped line with air filling. The purpose of the study is to establish the permissible level of introduced thermal losses of strip lines (or other types of transmission lines) that do not significantly affect the performance characteristics of the QLB, satisfying the required parameters. The calculation method is based on the principle of decomposition of the QLB electric circuit into six symmetric 6-poles, three of which correspond to the odd excitation mode of the QLB, and the other three correspond to the even excitation mode of the QLB. Algebraic summation of the scattering matrices of these modes made it possible to obtain frequency characteristics of the resulting S-scattering matrix of the QLB. The normalization of the S-matrix to the standard wave resistance of 50 Ohms was carried out using the calculation of the eigenvalues of the scattering matrices of equivalent 4-poles of the QLB. The simulation was carried out in the LabVIEW environment.
