Items of № 8-2025
Reduction of video stream latency in unmanned vehicles first person view control via HSTNs
E.A. Nesterov, JSC RESHETNEV, general director, Ph.D.; office@iss-reshetnev.ru
А.A. Berezkin, The Bonch-Bruevich Saint Petersburg State University of Telecommunications, associate professor, Ph.D.; berezkin.aa@sut.ru
UDC 004.7+004.738.2: 004.738.5
DOI: 10.34832/ELSV.2025.70.8.001
Abstract. High latency remains a critical issue in the satellite segment of the hybrid communication network, especially in real-time applications such as video streaming. In this paper, a new method is proposed to reduce the video stream transmission latency in the implementation of the FPV piloting service by unmanned aerial vehicles using neural networks. The method is based on the video stream frame prediction on the receiver side and frame puncturing on the unmanned aerial vehicle side. The proposed method is evaluated using numerical and field experiments. An analytical model is introduced to calculate the latency in satellite channels, taking into account transmission delays and prediction processing time. The results show a significant reduction in latency with minimal loss of frame quality. This paper provides practical recommendations for implementing frame prediction in real satellite segments of the hybrid communication network.
Keywords: satellite communications, latency reduction, delay reduction, video frames prediction, data transmission, MJPEG, hybrid network, unmanned vehicle, first person view control.
For citation: Nesterov, E.A. Reduction of video stream latency in unmanned vehicles first person view control via HSTNs / E.A. Nesterov, А.A. Berezkin // Electrosvyaz. – 2025. – No. 8. – P. 2-16. (in russian)
Methodology for testing methods of network delay minimization on a fragment of a hybrid communication network. Part II. Lossless ST-GNN compression for transmission-delay
P.H. Do, The Bonch-Bruevich Saint Petersburg State University of Telecommunications, postgraduate; do.hf@sut.ru
UDC 004.896
DOI: 10.34832/ELSV.2025.70.8.002
Abstract. This paper addresses the problem of latency minimization in hybrid satellite-terrestrial communication networks, taking into account the specific characteristics of geostationary (GEO) satellites. In the second part of the article, an additional source of variable delay (namely, the data transmission time over a narrowband GEO satellite link) is investigated. A hardware-implemented, lossless compression scheme based on a spatio-temporal graph neural network (ST-GNN) is proposed and deployed on an edge GPU node, integrated with a GEO modem. Trained on representative traffic traces, the compression model significantly reduces the volume of transmitted data, thereby lowering both the duration of over-the-air transmission and the likelihood of buffer-induced delays. The combined
application of the priority scheduler from the first part of the article and the ST-GNN-based compressor demonstrates a pronounced synergistic effect, yielding a comprehensive reduction in end-to-end latency within hybrid satellite communication systems.
Keywords: hybrid satellite-terrestrial networks, network latency optimization, spatio-temporal graph neural networks (ST-GNN), traffic classification and scheduling, lossless data compression.
For citation: Do, P.H. Methodology for testing methods of network delay minimization on a fragment of a hybrid communication network. Part II. Lossless ST-GNN compression for transmission-delay / P.H. Do // Electrosvyaz. – 2025. – No. 8. – P. 17-26. (in russian)
Principles of development of the national telecommunication system
N.A. Sokolov, St. Petersburg branch of the M.I. Krivosheev National Research Centre for Telecommunication (NRCT), head of laboratory, senior researcher, Dr.Sci.(Tech.); sokolovna@nic-t.ru
A.V. Ermakov, North-Eastern Federal University named after M.K. Ammosov, advisor to the rector, St. Petersburg branch of the NRCT, head of department, associate professor, Ph.D.; ermakov-it@yandex.ru
A.V. Fedorov, St. Petersburg branch of the NRCT, head of engineering and technical department; fedorovav@nic-t.ru
V.A. Savichev, St. Petersburg branch of the NRCT, deputy director, Ph.D.; savichevva@nic-t.ru
UDC 621.391
DOI: 10.34832/ELSV.2025.70.8.003
Abstract. Possible approaches to developing principles for the development of a national telecommunications system are considered. Brief historical information on the conduct of systems research is provided. Possible ways of modernizing the national telecommunications system based on the “Network-2030” concept are discussed. Proposals are made for the practical implementation of work aimed at formulating principles for the development of a national telecommunications system. The tasks whose solution involves conducting applied research are listed.
Keywords: telecommunication system, system research, services, forecast, scenario, modernization.
For citation: Sokolov, N.A. Principles of development of the national telecommunication system / N.A. Sokolov, A.V. Ermakov, A.V. Fedorov, V.A. Savichev // Electrosvyaz. – 2025. – No. 8. – P. 27-34. (in russian)
Implementation of subscription services based on switching resources of the basic data exchange system
V.M. Sobol, JSC RIAA, chief specialist; sobolvm@yandex.ru
I.V. Davidchuk, JSC RIAA, lead engineer; iradavidchuk@yandex.ru
P.O. Cherbaev, JSC RIAA, lead software engineer; CherPaUl1997@yandex.ru
UDC 004:004.2:519.7
DOI: 10.34832/ELSV.2025.70.8.004
Abstract. The aspects of the information structure of message switching of the automated document exchange system are considered, including issues of hardware composition, options for addressing subscribers of a specialized network, as well as software organization of information processing and transmission. The use of visual means and graphics of extended Petri nets is declared, which makes it possible to formalize the dynamics of the behavior of the basic components of the programs of the automated document exchange system and to obtain their adequate abstract description.
Keywords: telecommunication network, communication systems, transmission of messages, documentary exchange, interruption of communications, software, computing parallelism, policy processes, distributed automation system, extended Petri net.
For citation: Sobol, V.M. Implementation of subscription services based on switching resources of the basic data exchange system / V.M. Sobol, I.V. Davidchuk, P.O. Cherbaev // Electrosvyaz. – 2025. – No. 8. – P. 35-45. (in russian)
Methodology for assessing the availability of wireless communication in geographical locations, linear objects, and territorial regions of the Russian Federation. Part I
S.I. Lopato, The M.I. Krivosheev National Research Centre for Telecommunication (NRCT), deputy director of the Big data Research Center; lopatosi@nic-t.ru
UDC 654.01
DOI: 10.34832/ELSV.2025.70.8.005
Abstract. The article presents a methodology for assessing the availability of modern wireless communication services for consumers in geographical locations (geospatial points) of the Russian Federation, linear-extended objects, and territorial areas. The first part of the article examines the methodology for assessing the development of telecommunications infrastructure at conditionally point objects. The methodology is based on the characteristics of the availability, accessibility, and quality of wireless communication services. The methodology is intended for use in determining the priority of infrastructure projects implemented to eliminate digital inequality in the field of wireless communication services and to assess the effectiveness of these projects.
Keywords: wireless communication, telecommunications infrastructure, availability of wireless communication services, infrastructure project, availability, accessibility, and quality of wireless communication services.
For citation: Lopato, S.I. Methodology for assessing the availability of wireless communication in geographical locations, linear objects, and territorial regions of the Russian Federation. Part I / S.I. Lopato // Electrosvyaz. – 2025. – No. 8. – P. 46-51. (in russian)
Percolation analysis of cellular network connectivity taking into account antenna radiation patterns and the SINR-criterion
S.Sh. Rekhviashvili, Institute of Applied Mathematics and Automation of Kabardino-Balkar Scientific Center of the RAS, head of theoretical and mathematical physics department, Dr.Sci.(Phys.-Math.); rsergo@mail.ru
O.S. Olkhovik, Institute of Applied Mathematics and Automation of Kabardino-Balkar Scientific Center of the RAS, junior researcher; os_vaytanets_86@mail.ru
UDC 001.891.573; 004.942
DOI: 10.34832/ELSV.2025.70.8.006
Abstract. The study investigates the connectivity of cellular networks by modeling them as ensembles of percolation clusters. Unlike traditional approaches that rely on simplified coverage models, this work takes into account the antenna radiation patterns of both mobile users and base stations, as well as the Signal to Interference plus Noise Ratio (SINR) as the criterion for establishing connections. Using the Monte Carlo method, the formation of connected clusters is analyzed, and the effects of base station density, transmitter power, and SINR thresholds on the percentage of connected users and the size of the largest percolation cluster are studied. The results demonstrate how physicallayer modeling influences overall network connectivity characteristics, providing a more accurate understanding of cellular network behavior under real-world interference conditions.
Keywords: modeling, Monte Carlo method, wireless networks, base station, mobile user, sector antenna, omnidirectional antenna, propagation of radio waves, signal attenuation.
For citation: Rekhviashvili, S.Sh. Percolation analysis of cellular network connectivity taking into account antenna radiation patterns and the SINR-criterion / S.Sh. Rekhviashvili, O.S. Olkhovik // El ectrosvyaz. – 2025. – No. 8. – P. 52-59. (in russian)
Methodology for estimating losses due to atmospheric turbulence in a quantum communication channel with QKD
M.V. Sapozhnikov, National Research Center Kurchatov Institute, junior researcher; msapozh@jscc.ru
Yu.B. Mironov, National Research Center Kurchatov Institute, lead engineer, Ph.D.; ymironov@jscc.ru
S.Yu. Kazantsev, Moscow Technical University of Communications and Informatics, professor, Dr.Sci.(Phys.-Math.); s.i.kazantsev@mtuci.ru
UDC 535.2; 621.391.6; 621.391.8
DOI: 10.34832/ELSV.2025.70.8.007
Abstract. The article discusses existing methods for calculating atmospheric losses, as well as a new approach that takes into account the influence of turbulent cells (vortices) of the atmosphere of various scales on the geometric parameters of the optical beam, allowing us to predict the deviation of optical radiation due to regular and random refraction. As a result, the accuracy of obtaining numerical results for calculating atmospheric losses and, as a consequence, assessing the efficiency of satellite quantum key distribution (QKD) is increased. The experimental data on the generation rate of the sifted quantum key sequence during downward radiation between the satellite and the ground station are compared with the results obtained using the described method of estimating losses, taking into account the influence of the vortex structure.
Keywords: free-space optical communication, atmospheric turbulence, vortex structure, QKD efficiency, loss estimation method.
For citation: Sapozhnikov, M.V. Methodology for estimating losses due to atmospheric turbulence in a quantum communication channel with QKD / M.V. Sapozhnikov, Yu.B. Mironov, S.Yu. Kazantsev // Electrosvyaz. – 2025. – No. 8. – P. 60-69. (in russian)
Evaluation of the correcting ability of LDPC codes and the probability of bit error when using them. Part I
N.V. Lemeshko, JSC Corporation Kometa, deputy head of department, Dr.Sci.(Tech.); nlem83@mail.ru
A.N. Plotnikov, JSC Corporation Kometa, chief designer of the MKP; 89031276391@yandex.ru
I.V. Zmeev, JSC Corporation Kometa, chief designer of the RIUS; zmeev-ivan@yandex.ru
S.M. Gritsenko, JSC Corporation Kometa, head of sector; gricenko1812@yandex.ru
UDC 519.725
DOI: 10.34832/ELSV.2025.70.8.008
Abstract. The article discusses ways to simplify the calculation of the correcting ability of LDPC codes and the probability of bit error when using them for the case of using a generator matrix of canonical form. In the first part of the article, an idea of LDPC coding is provided, nodal requirements for generator matrices are analyzed, the main advantages of their canonical form are determined, and methods for detecting bit errors on the receiving side are noted. An algorithm for estimating the correcting ability of LDPC based on statistical drawings is proposed, and its scheme is given, which allows mitigating the limitations of the matrix dimension existing in mathematical packages. The results of estimating the maximum number of recoverable bits when using LDPC with different code rates are presented.
Keywords: LDPC, generator matrix, syndrome matrix, Haming distance, error correction, bit error, symbol error, digital modulation.
For citation: Lemeshko, N.V. Evaluation of the correcting ability of LDPC codes and the probability of bit error when using them. Part I / N.V. Lemeshko, A.N. Plotnikov, I.V. Zmeev, S.M. Gritsenko // Electrosvyaz. – 2025. – No. 8. – P. 70-76. (in russian)
Evaluation and justification of the choice of series of preferred values for resistors and capacitors
S.A. Yasinskii, CJSC “Institute of Telecommunications”, leading specialist, associate professor, Dr.Sci.(Tech.); yasinsky777@mail.ru
UDC 621.391
DOI: 10.34832/ELSV.2025.70.8.009
Abstract. The article presents the results of the assessment and justification of the selection of preferred values for resistors and capacitors, which were obtained during a comparative analysis of the current and alternative series of preferred values based on quantitative and qualitative indicators, which are based on the multiple interchangeability of each value of a passive electronic element in the form of a resistor or capacitor with two or more elements with different values connected in series or parallel. As a result of the research conducted on five quantitative and qualitative indicators for evaluating the preferred values of resistors and capacitors, in order to justify the choice of the most effective series for implementation in standards, an alternative series of preferred values is preferred, which is based on the denominator of a geometric progression associated with the number two.
Keywords: resistors, capacitors, series of preferred values, interchangeability, geometric progression, and quality parameters.
For citation: Yasinskii, S.A. Evaluation and justification of the choice of series of preferred values for resistors and capacitors / S.A. Yasinskii // Electrosvyaz. – 2025. – No. 8. – P. 77-82. (in russian)
