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1
Zieliński, Andrzej, e Kazimierz Zieliński. "Mobile Telecommunication Systems Changed the Electronic Communications and ICT Market". Journal of Telecommunications and Information Technology, n. 2 (30 giugno 2013): 5–13. http://dx.doi.org/10.26636/jtit.2013.2.1209.
Testo completoAbstract (sommario):
The paper covers development and importance of mobile (cellular) telecommunication services, which developed during last about 20 years and are currently the most important and profitable telecommunication sector. The development of mobile telecommunications becomes essential factor of economic growth in many countries, especially in developing countries. Currently due to the scientific and technological progress as well as the implementation a new standard known as LTE system, cellular telecommunication becomes the basic element of the modern broadband telecommunication infrastructure and internet services. Growing importance of the mobile systems is also connected with great popularity of new mobile terminals – smartphones and tablets. These terminals together with the technology known as cloud computing changed also the ICT market. The paper relates to the situation in many countries, but mainly to Poland.
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Gvozdov, R. Y., e R. V. Oliynykov. "Method and technique of formal design of complex information security system in information and telecommunication systems". Radiotekhnika, n. 203 (23 dicembre 2020): 91–96. http://dx.doi.org/10.30837/rt.2020.4.203.08.
Testo completoAbstract (sommario):
The aim of the article is to develop a methodology for the formal design of the complex information security system in information and telecommunication systems. At the moment, there are no methods for the formal design of complex information security system in information and telecommunication systems, so the development of such a methodology is an urgent task. The article discusses the methods of formalized modeling of information security policy and methods of formalized description of the information and telecommunications system and information processing processes. The necessity of formal design of complex information security system is substantiated and the requirements for the development of formal descriptions of an integrated information security system in accordance with regulatory documents in the field of technical protection of information are described. The comparative characteristics of the methods of formalized modeling of information security policy and methods of formalized description of the information and telecommunication system and information processing processes are given. As a result of the comparison, it is proposed to use the UML method for the formal description of the information-telecommunication system, and the UMLsec method for the security policy modeling. An algorithm for the formation of a complex of protection facilities in an information and telecommunications system is proposed from a formal model of security policy and from a formalized description of an information and telecommunications system and information processing processes.
3
Tett, Matt. "Legacy Telecommunication Systems". Australian Journal of Telecommunications and the Digital Economy 3, n. 4 (29 dicembre 2015): 63. http://dx.doi.org/10.18080/ajtde.v3n4.40.
Testo completoAbstract (sommario):
The subject of legacy telecommunication systems is often overlooked in the pursuit of technological advancement, yet somehow the result is often less than graceful with end users left walking a tightrope between technology they are familiar with, and the evolving replacement systems.
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Tett, Matt. "Legacy Telecommunication Systems". Journal of Telecommunications and the Digital Economy 3, n. 4 (29 dicembre 2015): 63–65. http://dx.doi.org/10.18080/jtde.v3n4.40.
Testo completoAbstract (sommario):
The subject of legacy telecommunication systems is often overlooked in the pursuit of technological advancement, yet somehow the result is often less than graceful with end users left walking a tightrope between technology they are familiar with, and the evolving replacement systems.
5
Šajić, Slavko, Nebojša Maletić, Branislav M. Todorović e Milan Šunjevarić. "Random Binary Sequences in Telecommunications". Journal of Electrical Engineering 64, n. 4 (1 giugno 2013): 230–37. http://dx.doi.org/10.2478/jee-2013-0033.
Testo completoAbstract (sommario):
Realization of modern telecommunication systems is inconceivable without use of different binary sequences. In this paper, an overview of random binary sequences used in different telecommunication systems is given. Basic principles of pseudorandom, chaotic, and true random sequence generation are presented, as well as their application in telecommunications in respect to advantages and drawbacks of the same. Moreover, particular scheme for true random binary sequence generation is given, as well as results of randomness assessment obtained by NIST statistical test suite. Finally, short insight into importance of random binary sequence in secure communications is given.
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Kulikov, I. A., e N. A. Zhukova. "Integration of telecommunication networks in monitoring system using domain ontologies". Ontology of Designing 12, n. 3 (27 settembre 2022): 353–66. http://dx.doi.org/10.18287/2223-9537-2022-12-3-353-366.
Testo completoAbstract (sommario):
This paper discusses the problems of designing cloud-based telecommunication network monitoring systems based on the construction and application of models of such networks in the form of knowledge graphs. The proposed monitor-ing systems combine the functions of systems used by various telecommunications network operators. The considered design approach involves the use of a number of common ontologies and domain-level ontologies, such as the tele-communications services domain ontology (TSDO) and the hybrid telecommunications network (ToCo) ontology. To take into account the specifics of networks and operators in the developed monitoring system, an extension of the do-main ontology is provided. The article considers the case of combining telecommunication networks built on the basis of different domain-level ontologies or without using an ontological model, by adding new ontologies, within the framework of one monitoring system. To automate the design process, an algorithm for comparing classes of domain ontologies with components of telecommunication network models is proposed. The application of the proposed ap-proach is shown on the example of the problem of adding a new network segment to the monitoring system of a cable television operator.
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Giovinazzi, Sonia, Andrew Austin, Rob Ruiter, Colin Foster, Mostafa Nayyerloo, Nirmal-Kumar Nair e Liam Wotherspoon. "Resilience and fragility of the telecommunication network to seismic events". Bulletin of the New Zealand Society for Earthquake Engineering 50, n. 2 (30 giugno 2017): 318–28. http://dx.doi.org/10.5459/bnzsee.50.2.318-328.
Testo completoAbstract (sommario):
This paper provides an overview on the physical and functional performance of the New Zealand telecommunication network following the 14 November 2016 Kaikōura earthquake (Mw 7.8). Firstly, the paper provides an overview of the New Zealand telecommunications infrastructure. Secondly, the paper presents preliminary information on the impacts of the Kaikōura earthquake on the telecommunication network following the format proposed by [1] for post-earthquake assessment and resilience analysis of infrastructure systems, namely: extent of earthquake-induced physical impacts on the components of the telecommunication networks, identified according to a proposed taxonomy; main observed dependency issues; identification of resilience attributes and strategies that allowed an effective and rapid reinstatement of the telecommunication service. Finally lessons learned and research needs are discussed.
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Abdellah, A., e A. Koucheryavy. "SURVEY ON ARTIFICIAL INTELLIGENCE TECHNIQUES IN 5G NETWORKS". Telecom IT 8, n. 1 (aprile 2020): 1–10. http://dx.doi.org/10.31854/2307-1303-2020-8-1-1-10.
Testo completoAbstract (sommario):
Research subject. Fifth-generation telecommunication networks are currently the determining direction of telecommunications development as a whole. At the same time, the complexity of the processes of functioning of fifth-generation telecommunication networks increases by an order of magnitude compared to existing networks. All this requires the use of new technologies, including artificial intelligence, to ensure the stable functioning of telecommunication networks. Method. System analysis. Core results. The scientific tasks for the fifth generation communication networks, in which the use of artificial intelligence seems appropriate, including machine and deep learning, are identified. Practical significance. The results of the work can be useful in the education process in the field of networks and telecommunication systems, as well as for setting new scientific tasks for PhD students.
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Kanaev, Andrey, Elina Login e Kseniya Pudovkina. "Informational Model of Promising Database in the System of Management for Carrier Ethernet Telecommunication Network". Proceedings of Petersburg Transport University 19, n. 3 (25 settembre 2022): 421–31. http://dx.doi.org/10.20295/1815-588x-2022-3-421-431.
Testo completoAbstract (sommario):
Purpose: To develop an informational model of a promising database in the system of management of telecommunication network which uses Carrier Ethernet technology for to ensure the efficiency of storage, access and update of data on the telecommunication network functioning that will allow to increase the operativeness of implementation of OAM (Operation, Administration and Management) control-management built-in processes at timely and reasonable decision-making on telecommunication network management in conditions of high dynamics of changes in the network state as well as in view of Carrier Ethernet technology specificities. Thus, in order to provide services of given quality, an information model of database in telecommunication network management system has been created with indication of information main sources which’re represented by subsystems and models of telecommunications network management system in accordance with the previously developed three-level conceptual model. Also, to achieve the stated goal a logical structure of the obtained database information model on the example of domain objects has been developed. Methods: Fundamentals of complex process management theory; theory of multi-agent systems of management of distributed object; theory of systems of information storage and presentation; object-oriented projection method; set-theoretic approach for the description of data set about a control object. Results: The obtained informational model of database and the developed logical three-level structure of functioning are described verbally and mathematically. The evaluation of functioning of the proposed logical structure of the database in the system of telecommunication network management using Carrier Ethernet technology and OAM mechanisms is given. The directions of further research towards development of the models of major processes of collection, processing and provision of data on functioning of subsystems in the system of telecommunications network management are proposed. Practical significance: The developed informational model of database in the system of telecommunications network management differs from well-known ones by the possibility of accounting for and including in the data of the implementation of the complex of unique models of functioning and management of Carrier Ethernet telecommunication network and the mechanisms of OAM management, that were previously obtained by the authors and represent subsystems in the telecommunications network management system with the use of Carrier Ethernet technology possibilities.
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Shcherbakovskyi, M. H., e V. A. Korshenko. "Complex Telecommunication and Auto-Technical Expertise". Bulletin of Kharkiv National University of Internal Affairs 87, n. 4 (22 dicembre 2019): 179–86. http://dx.doi.org/10.32631/v.2019.4.18.
Testo completoAbstract (sommario):
The presence of more electronics onboard vehicle systems transforms them from simple means of transportation to powerful telecommunication devices, capable of receiving and transmitting information in various ways, analyzing the obtained information and performing various actions on the basis of the received data, starting from managing the work of individual transport units up to self-driving motion. The available techniques of auto-technical expertise are not able to answer all the questions that may be raised in criminal and administrative cases, as well as in the consideration of civil claims for damages’ compensation and damages in road accidents involving modern vehicles. The analysis of forensic practice allows to specify directions of increasing the efficiency of research on establishing the circumstances of road accidents: improvement of the methods for carrying out forensic auto-technical expertise, improvement of qualification and professional skills of forensic motor technician’s experts, carrying out of complex telecommunication and auto-technical expertise. The main task of an expert in the field of telecommunications during the conduction of complex telecommunication and auto-technical expertise is to extract the necessary information from certain telecommunication devices installed in the vehicle, which is under study, to determine the methods for their installation and connection and communication channels. The introduction of modern technologies for diagnosing electronic systems of vehicles into modern practice is a prerequisite for improving the efficiency of forensic auto-technical expertise, and the most effective use of these technologies is achieved by engaging in research in the format of carrying out complex telecommunication and auto-technical expert examinations in the field of telecommunications.
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Ilchenko, Mikhail E., T. N. Narytnik, Oleg I. Belous e Anatoly Ivanovich Fisun. "MITRIS - Microwave Telecommunication Systems". Telecommunications and Radio Engineering 67, n. 16 (2008): 1429–47. http://dx.doi.org/10.1615/telecomradeng.v67.i16.20.
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Ilchenko, Mikhail E., T. N. Narytnik, Anatoly Ivanovich Fisun e Oleg I. Belous. "TERAHERTZ RANGE TELECOMMUNICATION SYSTEMS". Telecommunications and Radio Engineering 70, n. 16 (2011): 1477–87. http://dx.doi.org/10.1615/telecomradeng.v70.i16.60.
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Buffet, Pierre. "Telecommunication systems and software". World Patent Information 14, n. 1 (febbraio 1992): 13–16. http://dx.doi.org/10.1016/0172-2190(92)90144-8.
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Kviatkovska, Аnna. "ORGANIZATION OF EDUCATIONAL ACTIVITIES IN THE CONTEXT OF BLENDED LEARNING FOR FUTURE TELECOMMUNICATIONS SPECIALISTS". Scientific Journal of Polonia University 56, n. 1 (1 giugno 2023): 133–38. http://dx.doi.org/10.23856/5619.
Testo completoAbstract (sommario):
The article is devoted to the issue of organizing educational activities in the conditions of blended learning for future telecommunications specialists in teaching the disciplines “Switching and Information Distribution Systems” and “Telecommunication and Information Networks”. Due to the pandemic and the Russian invasion of Ukraine, distance and blended learning has become one of the leading trends in education, providing continuous and high-quality education. The author analyzed the experience of Ukrainian researchers in the use of blended learning and ICT tools in higher education institutions. The author describes digital tools and learning platforms used by teachers in the disciplines “Switching and Information Distribution Systems” and “Telecommunication and Information Networks” at the Kyiv Professional College of Communications. The materials in the areas of study of future telecommunications specialists are described in detail. The advantages of using the workbook in teaching the discipline “Telecommunication and Information Networks” are presented. As a result of the survey, which was attended by 50 students majoring in Telecommunications and Radio Engineering, the following advantages of blended learning were identified: flexibility of the process; increased academic performance of students; gaining knowledge in different ways; combination of distance and traditional learning. In an open question, students were asked to indicate what, in their opinion, needs to be changed or improved to improve the blended learning process; the answers were analyzed by the author and singled out into separate positions.
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Granat, Janusz. "Data mining and complex telecommunications problems modeling". Journal of Telecommunications and Information Technology, n. 3 (30 settembre 2003): 115–20. http://dx.doi.org/10.26636/jtit.2003.3.181.
Testo completoAbstract (sommario):
The telecommunications operators have to manage one of the most complex systems developed by human beings. Moreover, the new technological developments, the convergence of voice and data networks and the broad range of services still increase this complexity. Such complex object as telecommunication network requires advanced software tools for their planning and management. Telecommunications operators collect large volumes of the data in various databases. They realize that the knowledge in these huge databases might significantly improve various organizational strategic and operational decisions. However, this knowledge is not given explicitly, it is hidden in data. Advanced methods and algorithms are being developed for knowledge extracting. In this paper we will focus on using data mining for solving selected problems in telecommunication industry. We will provide a systematic overview of various telecommunications applications.
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Yakymchuk, N. M., e A. I. Toroshanko. "METHODS OF IDENTIFICATION AND COMPREHENSIVE DIAGNOSIS OF TELECOMMUNICATION SYSTEMS". Collection of scientific works of the Military Institute of Kyiv National Taras Shevchenko University, n. 69 (2020): 58–65. http://dx.doi.org/10.17721/2519-481x/2020/69-06.
Testo completoAbstract (sommario):
The article formulates the main tasks of management of information networks and telecommunications services in terms of ensuring their reliable operation. The telecommunication network is considered as a complex system consisting of many components, each of which has its own characteristics of operation during operation. The main functions of the telecommunication network control system are determined: fault detection and network status diagnostics, network device administration, forecasting and elimination of congestion and other possible deviations in network functioning, ensuring coordinated interaction between different types of control systems for providing telecommunication services with specified quality. Methods of analysis and management of networks are essentially a kind of identification methods, i.e. the current assessment of the parameters and condition of complex technical systems. There is a close relationship between identification and diagnostic tasks. The methods for solving these problems largely depend on the class to which the identification object can be assigned. Computer and telecommunication networks belong to the class of distributed systems with delays in signal and control information. Methods of retrospective identification are used to analyze the state of such systems. The influence of delays of signal and control information on the efficiency of search and determination of places of failures, overloads and emergency modes in communication networks is investigated. The results of computer simulation are given. The approach based on regular control of parameters and condition of network nodes taking into account delays of receipt of information on parameters and a condition of a concrete network node and delays of the control information necessary for adjustment of parameters of a network node as control object has found further development.
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Sakhnyuk, Pavel A., e Tatyana I. Sakhnyuk. "IMPROVING THE QUALITY OF THE FUNCTIONING OF TELECOMMUNICATION SYSTEMS BASED ON THE INTEGRATION OF NEURAL NETWORKS". Krasnoyarsk Science 12, n. 2 (30 giugno 2023): 191–207. http://dx.doi.org/10.12731/2070-7568-2023-12-2-191-207.
Testo completoAbstract (sommario):
The article proposes the integration of neural networks as a parallel element base in telecommunications systems. In this case, their main advantage, the ability to self-study or adapt to external conditions, will be used. For telecommunication systems in conditions of interference, this ability will significantly increase their noise immunity, reliability, operability, etc. The article considers an example of integration of a neural network into a discrete matched signal filter. It is noted that the use of parallel mathematics in signal processing, such as a system of residual classes, will lead to the maximum effect of increasing the quality parameters of such elements of telecommunications.
Purpose – introduction to neural networks; application of neural networks in digital filtering; possible directions of integration of neural network technologies.
Method or methodology of the work: harmonic analysis, Fourier transform, correlation analysis were used in the article.
Results: The introduction of mass parallelism in telecommunications becomes feasible when integrating neural networks into telecommunication elements. The efficiency becomes maximum when using simultaneously parallel mathematics of the system of residual classes
Practical implications: the use of parallel mathematics in signal processing, such as a system of residual classes, will lead to the maximum effect of increasing the quality parameters of such elements of telecommunications.
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Кропотов, Юрий, Yuriy Kropotov, Алексей Белов, Aleksey Belov, Александр Проскуряков e Aleksandr Proskuryakov. "EFFECTIVENESS INCREASE IN AUDIO EXCHANGE TELECOMMUNICATION SYSTEMS UNDER CONDITIONS OF EXTERNAL ACOUSTIC NOISE BY METHODS OF ADAPTIVE FILTERING". Bulletin of Bryansk state technical university 2019, n. 3 (27 marzo 2019): 71–77. http://dx.doi.org/10.30987/article_5c8b5cebac6217.27543313.
Testo completoAbstract (sommario):
Signal processing in the telecommunication systems of audioinformation exchange is conditioned on the requirement in the separation of useful speech acoustic information, in the increase of the verification of information perception by subscribers of a communication system, in the stability increase of telecommunication systems at the suppression of external acoustic interference and echosignal compensations. Therefore during designing telecommunication systems, in particular, speakerphone systems (SS) operating under conditions of an active impact of external acoustic interference and echosignals, there is specified a problem of the algorithm formation of efficient noise suppression for an essential “signal-noise” ratio support.
The investigation object is design methods of adaptive algorithms for speech signals processing and acoustic interference suppression at the expense of the controlled change of a rejection area in the range from 0 to 300…1000Hz depending on an interference situation.
The work aim is an investigation of the speech signals characteristics and acoustic noise of different nature and also problems consideration in the matter of an algorithm creation for adaptive filtering and suppression of external acoustic interference and echosignals. At that the increase of the “signal-acoustic interference” ratio in the systems of audioexchange telecommunications is carried out through the methods of adaptive filtering.
The results obtained in the course of the investigations of different acoustic interference suppression show that through the method of linear filtering in the system of telecommunications of speech information exchange it is possible to ensure the essential ratio Rs/Rak.pom. >20 dB and, accordingly, an essential syllab-ic legibility S ≥ 93%.
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Kaffenberger, Ruediger. "6.1.4 The Telecommunication Domain ‐ a Challenge for INCOSE". INCOSE International Symposium 10, n. 1 (luglio 2000): 71–77. http://dx.doi.org/10.1002/j.2334-5837.2000.tb00360.x.
Testo completoAbstract (sommario):
AbstractThe telecommunication sector harbours the true giants among the artificial systems. Telecommunication systems have the largest physical size of man made systems, they have the most users and the largest commercial value. Telecommunication systems have even outpaced the automobile in respect to its impact onto society. However, despite these facts and despite humankind relies on the availability and effectiveness of telecommunication systems, one finds only few contributions from individuals or organisations of the telecommunication industries to the science of systems engineering. In this paper, the outline of an alternative systems engineering profile of the telecommunication domain will be presented. This profile will be used to illustrate why systems engineering in the telecommunication domain is different and why INCOSE should be interested in it.
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Abbasova, T. S. "Development of rules in expert systems for the analysis and evaluation of telecommunications". Informacionno-technologicheskij vestnik 12, n. 2 (30 giugno 2017): 47–63. http://dx.doi.org/10.21499/2409-1650-2017-2-47-63.
Testo completoAbstract (sommario):
Typical malfunctions that may occur in telecommunication systems due to the failure to meet the noise immunity requirements, as well as the characteristic features that can identify these problems, are analyzed. In the process of developing the knowledge base for the expert system for assessing the telecommunications infrastructure, the existing tools for developing knowledge bases have been improved.
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Phillipson, Frank. "Quantum Computing in Telecommunication—A Survey". Mathematics 11, n. 15 (6 agosto 2023): 3423. http://dx.doi.org/10.3390/math11153423.
Testo completoAbstract (sommario):
Quantum computing, an emerging paradigm based on the principles of quantum mechanics, has the potential to revolutionise various industries, including Telecommunications. This paper explores the transformative impact of quantum computing on the telecommunication market, focusing on its applications in solving computationally intensive problems. By leveraging the inherent properties of quantum systems, such as superposition and entanglement, quantum computers offer the promise of exponential computational speedup and enhanced problem-solving capabilities. This paper provides an in-depth analysis of the current state of quantum computing in telecommunication, examining key algorithms and approaches, discussing potential use cases, and highlighting the challenges and future prospects of this disruptive technology.
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Shi, Congming, Wen Wang, Shoulin Wei e Feiya Lv. "System for Recommending Telecommunication Packages Based on the Deep and Cross Network". Wireless Communications and Mobile Computing 2022 (19 aprile 2022): 1–11. http://dx.doi.org/10.1155/2022/2100841.
Testo completoAbstract (sommario):
With the evolution of the 5th generation mobile network (5G), the telecommunications industry has considerably affected livelihoods and resulted in the development of national economies worldwide. To increase revenue per customer and secure long-term contracts with users, telecommunications firms and enterprises have launched diverse types of telecommunication packages to satisfy varied user requirements. Several systems for recommending telecommunication packages have been recently proposed. However, extracting effective feature information from large and complex consumption data remains challenging. Conventional methods for the recommendation of telecommunications packages either rely on complex expert feature engineering or fail to perform end-to-end deep learning (DL) during training. In this study, we propose a recommender system based on the Deep and Cross Network (DCN), deep belief network (DBN), embedding, and Word2Vec using the learning abilities of DL-based approaches. The proposed system fits the recommender system for telecommunication packages in terms of click-through rate prediction to provide a potential solution to the recommendation challenges faced by telecommunication enterprises. The proposed model captures the finite order interactional and deep hidden features. Additionally, the text information in the data is used to improve the model’s recommendation capability. The proposed method also does not require feature engineering. We conducted comprehensive experiments using real-world datasets, the results of which demonstrated that our proposed method outperformed other methods based on DBNs, DCNs, deep factorization machines, and deep neural networks in terms of the area under the ROC curve, cross entropy (log loss), and recall metrics.
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Bondarenko, Leonid, Mykola Masesov, Katerina Buzayeva, Iryna Hurzhii, Oksana Ilienko e Viktor Gnatyuk. "Method of Calculation the Accessibility of the Information and Telecommunication Networks of the Tactical Link of Management". International Journal of Computer Network and Information Security 13, n. 5 (8 ottobre 2021): 68–78. http://dx.doi.org/10.5815/ijcnis.2021.05.06.
Testo completoAbstract (sommario):
The article reflects the views of the authors on the method for the operational calculation of the indicator of the functioning of special-purpose information and telecommunication networks of the tactical level of control according to the criterion of "network availability". Improvement of weapons and military equipment, forms and methods of combat, as well as a change in views on command and control, put forward ever more stringent requirements for the information and telecommunication system in general and for its elements in particular. The problems of development, planning of combat use and operation of information and telecommunication networks of the tactical control level are their heterogeneity, since they use heterogeneous transmission systems (radio and wire) together. The characteristic features of the planning, deployment and operation of information and telecommunication networks of the tactical control level are a high degree of uncertainty in the characteristics of their functioning and the lack of initial data in planning, which necessitates the improvement of the methodological basis for conducting operational calculations. Based on the analysis of ITU-T recommendations, scientific publications and the practice of combat use of the defense forces, it becomes clear that the operational calculation of individual criteria and indicators of the functioning of information and telecommunication systems of the tactical control level needs to be improved, since these systems have their own characteristic features. The material presented in the article makes it possible to develop new approaches to solving the problem of a reasonable calculation of the required bandwidth of the access node of the information and telecommunications network of the tactical control link. The significance and value of this study lies in the fact that in the conditions of continuous improvement of the forms and methods of warfare, high dynamism of changes in the states of information and telecommunication systems of the tactical control level, the correct choice of the apparatus for assessing the decisions made should play a decisive role in shortening the deployment planning cycle and sustainable functioning of the system management.
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Inoue, Daiji. "The Telecommunication of Power Systems". IEEJ Transactions on Electronics, Information and Systems 107, n. 4 (1987): 314–19. http://dx.doi.org/10.1541/ieejeiss1987.107.4_314.
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Adams, Dennis A., Mary C. Lacity e James R. Mullins. "Telecommunication research in information systems". ACM SIGMIS Database: the DATABASE for Advances in Information Systems 21, n. 2-3 (gennaio 1991): 21–26. http://dx.doi.org/10.1145/109022.109026.
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Tang, Alex, Alexis Kwasinski, John Eidinger, Colin Foster e Pete Anderson. "Telecommunication Systems’ Performance: Christchurch Earthquakes". Earthquake Spectra 30, n. 1 (febbraio 2014): 231–52. http://dx.doi.org/10.1193/022213eqs046m.
Testo completoAbstract (sommario):
Telecommunication systems generally performed better than other lifelines in the Christchurch-area earthquake sequence of 2010–2011; however, various service interruptions were a major concern for subscribers. Power disruption was the primary reason for service interruption in Christchurch, as has been similarly observed in many other major earthquakes around the world. Extensive ground failures impacted underground cabling, while Central Offices (COs) sustained minor damage due to strong shaking. Closure of the Central Business District and increased call volumes created additional strain on telecommunication service providers to deal with emergency response. This paper presents the findings of the post-earthquake lifeline performance investigations of both the landline network and the cellular network. Voice and data services of these networks are examined and commented based on the findings. The authors’ view of rendering the telecommunication systems more resilient is presented ( Eidinger and Tang 2014 ).
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ADAMIS, G., R. HORVATH, Z. PAP e K. TARNAY. "Standardized languages for telecommunication systems". Computer Standards & Interfaces 27, n. 3 (marzo 2005): 191–205. http://dx.doi.org/10.1016/s0920-5489(04)00108-4.
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El Emary, Ibrahiem M. M., e Aboul Ella Hassanien. "Intelligent agent in telecommunication systems". Telecommunication Systems 46, n. 3 (19 febbraio 2010): 191–93. http://dx.doi.org/10.1007/s11235-010-9284-4.
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Karis, Demetrios, e Bonnie L. Zeigler. "Evaluation of Mobile Telecommunication Systems". Proceedings of the Human Factors Society Annual Meeting 33, n. 4 (ottobre 1989): 205–9. http://dx.doi.org/10.1177/154193128903300401.
Testo completoAbstract (sommario):
Mobile telephony exhibits transmission characteristics and user-interface features distinct from traditional telephony. To study these differences in systems designed for use in commercial airplanes, trains, and automobiles, we used a variety of techniques, including both laboratory and field observations. We found that mobile telephony, viewed from the user's perspective, is quite different from traditional telephone service. In the present paper, we review the assessment techniques that we employed, and consider their strengths and weaknesses for characterizing the performance of mobile telecommunication systems. Our results indicate that there are five major sources of potential user-interface problems in mobile telephony: (1) use of credit cards; (2) system delays; (3) lack of coordination among multiple sources of feedback; (4) the mechanism for completing multiple calls without credit-card reentry; (5) voice dialing. Because solving the problems we have identified does not require new or overly expensive technology, solutions are fairly straightforward to implement during the early design period. However, once units have been manufactured and installed, it can be both very difficult and very expensive to recover from the problems we have identified.
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Metelev, O. "Transport telecommunication networks as an information medium for obtaining information relevant to criminal proceedings: problematic issues of legal regulation". Herald of criminal justice, n. 4 (2019): 161–73. http://dx.doi.org/10.17721/2413-5372.2019.4/161-173.
Testo completoAbstract (sommario):
Scientific and technological progress, as well as the rapid development of information technologies, the formation of the information society, the introduction of telecommunications systems and networks into all vital processes, the availability of digital communications and information transmission have necessitated the use of new methods of combating crime in the new information (cybernetic) space, this artificially created environment, which is an integral part of transport telecommunications networks (TTN). The extraterritorial nature of transport telecommunication networks and systems, together with the global Internet, greatly complicates their legal regulation, as it is sometimes quite difficult to determine the jurisdiction of which state relates a criminal offense. Thus, when conducting silent investigative actions, a legitimate question arises as to the lawfulness of work in the information environment of the transport telecommunication network for obtaining digital evidence in the interests of criminal proceedings. Purpose of the article: to investigate the problematic issues of legal regulation when working in transport telecommunication networks in order to obtain information relevant to criminal proceedings during the conduct of silent investigative actions. The paper draws attention to the insufficient level of scientific research to cover the problematic issues of studying transport telecommunications networks as an information medium for legal obtaining digital evidence in the interests of criminal justice. The national legislation regulating public relations in this field is analyzed, as well as the case law of the European Court of Human Rights, which reveals some «white spots» in national legislation on ensuring the legitimacy and protection of human rights in the conduct of vague private communication interventions in the information environment of transport telecommunication networks. Taking into account the extraterritorial nature of the information (cyber) space, it is concluded that there is a need for clear legislative regulation of procedural activity in the transport telecommunication networks in order to ensure the security of the individual, society and the state as a whole in this sphere. The article also discusses different approaches to legal disparities in cyber crime investigations. The question of determining the crime scene in the information (cybernetic) space is raised, an attempt is made to define the "crime scene" and provides suggestions for improving legislation.
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Pagiatakis, G. K. "Teaching Telecommunications to Electronics Technical Engineers: An Integral Course on Telecommunication Systems". IEEE Transactions on Education 48, n. 2 (maggio 2005): 223–29. http://dx.doi.org/10.1109/te.2004.837037.
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Ciulla, Giuseppina, Vincenzo Franzitta, Valerio Lo Brano, Alessia Viola e Marco Trapanese. "Mini Wind Plant to Power Telecommunication Systems: A Case Study in Sicily". Advanced Materials Research 622-623 (dicembre 2012): 1078–83. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.1078.
Testo completoAbstract (sommario):
The ever increasing problems related to air pollution and the difficulties for power lines to reach inaccessible areas are pushing to find new solutions for powering telecommunications equipments (TLC). The renewable energy systems, although relatively expensive, have the required characteristics. The purpose of this work is to find a solution based on a low power wind turbine to serve a real telecommunication site located near Palermo, the main city of Sicily (Italy).
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Abdulwahab Anaam, Elham, Muhamad Naser Yousef Magableh, Ahmed Ridha Khudhur e Sadoon Hussein Abdulallah. "Key Factors Influence on Decision Making to IoT Adoption in Telecommunication Companies: A Review". International Journal of Engineering & Technology 11, n. 1 (2 febbraio 2022): 14–19. http://dx.doi.org/10.14419/ijet.v11i1.31876.
Testo completoAbstract (sommario):
In the context of the impact of advertisement IOT technology, the paper seeks to clarify the critical issues, specifically for telecommunication that deals with the novel technology but sometimes become complex because That is impacted by the constant changes in the information and communication technologies sector, that further leads to high operating expenses for organizations recent technological acquirement, installation, staff training for proper use of every new technology, and costly agreements to the Internet of Things suppliers for the implementation of IoT applications. The decision to adopt IoT technology will assist in predicting the best moment for a prominent telecommunications provider to deploy IoT systems, combining new mobile technologies and densifying its current network at an unmatched rate in the following years. Given the rising relevance of decision-making to IoT adoption and there is a lack of investigation and comparison of decision-making criteria with IoT platforms in this field. This article aims to provide four key factors that influence IoT adoption decision-making in a telecommunication company. Depending on the value of net theory, this article outlines four technical characteristics that influence decision-making in IoT adoption in a telecommunication company. The findings identification are the main factors for telecommunications companies to successfully token decision-making to IoT technology adoption. Keywords: Decision Making; IoT Adoption; Telecommunication Company; and Key Factors.Â
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Nikolaev, Steven, e Igor Sitnikov. "Test data distribution system for OSS/BSS-systems testing". ITM Web of Conferences 30 (2019): 04004. http://dx.doi.org/10.1051/itmconf/20193004004.
Testo completoAbstract (sommario):
OSS/BSS-systems used by telecommunication companies to conduct their business are a combination of several subsystems that closely interact with each other. Since the activities of telecommunications companies are related to the processing of personal data of individuals and legal entities, such systems should be subjected to testing, which should continue until the end of the life cycle. The huge size of telecommunications companies' databases, as well as the number of tests required to cover the entire functionality of OSS/BSS-systems are an obstacle to conducting rapid testing. This article describes an approach to testing organization that solves this problem, based on the selection and keeping the test data up to date. The effectiveness of the proposed approach has been demonstrated experimentally.
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Komilov, D. R., I. A. Makhmudov e M. G. Tillaboyev. "USE OF RADIO RELAY DEVICES IN TELECOMMUNICATION SYSTEMS". International Journal of Advance Scientific Research 03, n. 04 (1 aprile 2023): 72–77. http://dx.doi.org/10.37547/ijasr-03-04-10.
Testo completoAbstract (sommario):
In this article, devices of digital radio relay lines, their classification, optimal options of RRL for use in modern telecommunication systems are considered. Theoretical research was conducted on the proposed options and the author’s conclusions were given.
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Fedorenko, Oleg. "Peculiarities of formation of potential of telecommunications enterprises". Problems of Innovation and Investment Development, n. 26 (29 settembre 2021): 146–56. http://dx.doi.org/10.33813/2224-1213.26.2021.15.
Testo completoAbstract (sommario):
The purpose of the article – to analyze the peculiarities of forming the potential of a telecommunication enterprise and to suggest ways to increase the efficiency of its use. Research methodology. In the process of preparation of the article the methods of analytical, statistical and financial analysis were used. A scientific novelty is the proposal to use effective indicators of economic efficiency of the enterprise, such as profitability, profitability, cost, return on resources, investment, etc. to assess the effectiveness of the formation and use of the potential of the telecommunications enterprise. Conclusions. 1. The study of trends in the formation of the potential of telecommunications enterprises in Ukraine has determined that the pace of its development corresponds to the basic principles and principles of the concept of economic development and strategy of information society development adopted in Ukraine. The development of the economy of telecommunications enterprises is facilitated at the state level by developing new legislation in the information and telecommunications technologies sector in Ukraine, discussing and adopting new strategies for digital transformation aimed at using big data, blockchain, cloud technologies, robotics and the Internet of Things. 2. It is determined that the potential of a telecommunications enterprise is a unity of organizational, technical and information capabilities that contribute to the preparation and adoption of management decisions and influence its development. Features of capacity building determine the following components that ensure its functioning: software and hardware; personnel; information (databases); organizational, marketing, technical, technological, etc. 3. The system of financial indicators for definition of efficiency of functioning of the formed potential of the telecommunication enterprise is offered. 4. To ensure the formation of a strong potential of the telecommunications company in the work identified a number of key measures, including the creation of information systems, ensuring its operation by special staff, information security, creating new digital products and services, e-commerce and digital marketing. business analytics and big data management, etc. Key words: telecommunication enterprises, capacity building, potential structure of telecommunication enterprise, evaluation indicators, state support.
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K Rakesh, Shanu, Bharat Choudhary e Rachna Sandhu. "Cooperative Problem Solving in Telecommunication Network". INTERNATIONAL JOURNAL OF MANAGEMENT & INFORMATION TECHNOLOGY 4, n. 3 (24 luglio 2013): 388–92. http://dx.doi.org/10.24297/ijmit.v4i3.4548.
Testo completoAbstract (sommario):
Swarm intelligence, as demonstrated by natural biological swarms, has numerous powerful properties desirable in many engineering systems, such as telecommunication. Communication network management is becoming increasingly difficult due to the increasing size, rapidly changing topology, and complexity of communication networks. This paper describes how biologically-inspired agents can be used to solve control problems in telecommunications. These agents, inspired by the foraging behaviour of ants, exhibit the desirable characteristics of simplicity of action and interaction. The colle ction of agents, or swarm system, deals only with local knowledge and exhibits a form of distributed control with agent communication effected through the environment. In this paper we explore the application of ant-like agents to the problem of routing in telecommunication networks.
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Kudo, Daisuke, Hajime Furukawa, Atsuhiro Nakagawa, Yoshiko Abe, Toshikatsu Washio, Tatsuhiko Arafune, Dai Sato et al. "Reliability of Telecommunications Systems Following a Major Disaster: Survey of Secondary and Tertiary Emergency Institutions in Miyagi Prefecture During the Acute Phase of the 2011 Great East Japan Earthquake". Prehospital and Disaster Medicine 29, n. 2 (21 febbraio 2014): 204–8. http://dx.doi.org/10.1017/s1049023x14000119.
Testo completoAbstract (sommario):
AbstractIntroductionTelecommunication systems are important for sharing information among health institutions to successfully provide medical response following disasters.Hypothesis/ProblemThe aim of this study was to clarify the problems associated with telecommunication systems in the acute phase of the Great East Japan Earthquake (March 11, 2011).MethodsAll 72 of the secondary and tertiary emergency hospitals in Miyagi Prefecture were surveyed to evaluate the telecommunication systems in use during the 2011 Great Japan Earthquake, including satellite mobile phones, multi-channel access (MCA) wireless systems, mobile phones, Personal Handy-phone Systems (PHS), fixed-line phones, and the Internet. Hospitals were asked whether the telecommunication systems functioned correctly during the first four days after the earthquake, and, if not, to identify the cause of the malfunction. Each telecommunication system was considered to function correctly if the hospital staff could communicate at least once in every three calls.ResultsValid responses were received from 53 hospitals (73.6%). Satellite mobile phones functioned correctly at the highest proportion of the equipped hospitals, 71.4%, even on Day 0. The MCA wireless system functioned correctly at the second highest proportion of the equipped hospitals. The systems functioned correctly at 72.0% on Day 0 and at 64.0% during Day 1 through Day 3. The main cause of malfunction of the MCA wireless systems was damage to the base station or communication lines (66.7%). Ordinary (personal or general communication systems) mobile phones did not function correctly at any hospital until Day 2, and PHS, fixed-line phones, and the Internet did not function correctly at any area hospitals that were severely damaged by the tsunami. Even in mildly damaged areas, these systems functioned correctly at <40% of the hospitals during the first three days. The main causes of malfunction were a lack of electricity (mobile phones, 25.6%; the Internet, 54.8%) and damage to the base stations or communication lines (the Internet, 38.1%; mobile phones, 56.4%).ConclusionResults suggest that satellite mobile phones and MCA wireless systems are relatively reliable and ordinary systems are less reliable in the acute period of a major disaster. It is important to distribute reliable disaster communication equipment to hospitals and plan for situations in which hospital telecommunications systems do not function.KudoD, FurukawaH, NakagawaA, AbeY, WashioT, ArafuneT, SatoD, YamanouchiS, OchiS, TominagaT, KushimotoS. Reliability of telecommunications systems following a major disaster: survey of secondary and tertiary emergency institutions in Miyagi Prefecture during the acute phase of the 2011 Great East Japan Earthquake. Prehosp Disaster Med. 2014;29(1):1-5.
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Fenomenov, Michail, e Lev Goldstein. "Mathematical Models for Telecommunication Workforce Management". T-Comm 17, n. 1 (2023): 42–48. http://dx.doi.org/10.36724/2072-8735-2023-17-1-42-48.
Testo completoAbstract (sommario):
The article is devoted to the problems of advanced workforce management systems WFM (Workforce Management) of post-NGN telecommunication operators, a formalized approach to the description of extended WFM functionality and mathematical WFM models are discussed. The proposed approach allows to develop new WFM tools for telecommunications operators to increase their performance, to manage more effectively the work schedules of engineering employees of the company, visit customer sites, and control the workload of engineers in real-time. Workforce Management systems (WFM) of Next Generation Networks (NGN) are becoming more and more important. Compared to the routine distribution of requests between telephone technicians in the repair bureau of the old Public Switched Telephone Network (PSTN) in the last century, the modern WFM system operates with a disproportionately large set of functions, a wide range of professional competencies and key performance indicators (KPIs). In partnership with WFM, other new information technology tools (IT-landscape) of the telecommunications operator, elements of BSS (Business Support Systems), human resource accounting (HR) software, enterprise resource planning (ERP) systems, other workforce planning, and management tools employee vacations, the timing of basic engineering operations at the operator's and customer's premises, and other support tools to optimize the performance of the required work by personnel, increase productivity and reduce costs.
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Kanaev, A. K., E. V. Login e E. S. Poletaeva. "Modeling of the process of providing telecommunication services in cloud systems". E3S Web of Conferences 460 (2023): 04032. http://dx.doi.org/10.1051/e3sconf/202346004032.
Testo completoAbstract (sommario):
The topic discussed in this article is related to the efficient use of resources when providing telecommunications services in a cloud environment. Telecommunications companies pay special attention to testing and introducing new digital services, including data networks. And the use of cloud services is one of the promising tasks, the solution and integration of which with existing systems and equipment will significantly increase the efficiency of the devices involved in favor of expanding the range of services provided both in relation to telecommunication networks within the technological process and in the business management of the entire company. And taking into account the currently ongoing global project to organize a multi-service data transmission network and the widespread modernization of individual regions to organize a high-speed transport data transmission network, it will allow modeling and preliminary assessment of the effectiveness of the services provided in such communication networks at the current stage.
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Humeniuk, I. V., M. S. Basaraba e O. V. Nekrilov. "METHODS OF ENSURING CYBER SECURITY OF CRITICAL COMPONENTSNETWORKS OF INFORMATION AND TELECOMMUNICATION SYSTEM". Проблеми створення, випробування, застосування та експлуатації складних інформаційних систем, n. 18 (30 dicembre 2020): 101–10. http://dx.doi.org/10.46972/2076-1546.2020.18.10.
Testo completoAbstract (sommario):
It is established that the efficiency and reliability of information and telecommunication systems, in particular the networks that are part of them, significantly depends on the high level of protection of critical components. However, the constant improvement of the technical equipment of these systems requires the creation of new and improvement of existing methodological support for cyber security. One of the promising approaches is the development of a universal method of cybersecurity in the context of cyberattacks (influences, threats, etc.) and unauthorized access by unauthorized users to critical nodes (components) of information and telecommunications systems. Timely detection, prompt counteraction to cyber threats and unauthorized access to critical network components is a necessary component of ensuring a high level of cybersecurity of the information and telecommunications system as a whole, especially in the context of hybrid warfare and armed aggression by the Russian Federation. To this end, the article proposes a method of cybersecurity of critical components of information and telecommunications systems, which is based on the integrated application of monitoring the state of network nodes and user access to them, recording the facts of cyberattacks based on analysis of incoming (outgoing) traffic, timely detection of unauthorized access to and commission of cyber threats, as well as operational response to these attempts. The paper presents the results of verification of the proposed methods. To this end, the article proposes a method of cybersecurity of critical components of information and telecommunications systems, which is based on the integrated application of monitoring the state of network nodes and user access to them, recording the facts of cyberattacks based on analysis of incoming (outgoing) traffic, timely detection of unauthorized access to and commission of cyber threats, as well as operational response to these attempts. The paper presents the results of verification of the proposed method. It is shown that its application allows to quickly detect the facts of cyber threats and unauthorized access to critical components of information and telecommunication systems networks and effectively counteract these attempts.
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Kossecki, Pavel. "Comparison of Telecommunication Markets in Europe Using Multivariate Statistical Analysis". Journal of information and organizational sciences 44, n. 2 (9 dicembre 2020): 331–44. http://dx.doi.org/10.31341/jios.44.2.8.
Testo completoAbstract (sommario):
Common problem in valuation of telecommunication companies is finding comparable data and markets for valuation. The aim of this work was to identify comparable markets for the telecommunication market in Europe. A method for comparison of the markets based on the Multivariate Statistical Analysis was presented. The study covers twenty-two European countries. Using taxonomic measures, these countries were divided into five groups, taking into account the following variables: average monthly service cost of the fixed Internet, average cost of the mobile usage, and average cost of the fixed telephony usage. Within individual groups, the costs of telecommunications services are less diverse than in the entire population; their members can be considered comparable markets. The same method can be used for comparing markets in cases of enterprise valuations in the telecommunication sector, and also in analysis of their level of development.
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Dovgiy, Stanislav O., Oleh V. Kopiika e Oleksii S. Kozlov. "Synthesis of information and telecommunication networks of automatized environmental security systems with the purpose of gaining maximum noise resistance with a given efficiency". Environmental safety and natural resources 40, n. 4 (24 dicembre 2021): 5–20. http://dx.doi.org/10.32347/2411-4049.2021.4.5-20.
Testo completoAbstract (sommario):
The article defines the system features, properties and characteristics of information and telecommunication networks of automated environmental safety systems: information reliability and proven efficiency as a fundamental characteristic of system perfection. The main task of this research is to standardize the highest level of information and telecommunications networks architecture that provide the creation, processing, storage, deletion and transportation of information. In this case, the architecture is considered as a single for: all types of networks (including network services): optical transport network, Internet network (data network), fixed telephone network, mobile network and all types of products, customers, services, resources, aspects of management. A very important requirement is that the system architecture should not change when changing the structure of products, market requirements or the structure of the company. Standardization of information systems architecture involves: defining a complete list of architecture components; determination of functional boundaries of components; definition of interfaces (protocols) of interaction of components. The main purpose of architecture standardization is: to reduce the implementation of telecommunications services by reducing the time for implementation and modernization of information systems, and increase the efficiency of implementation of information systems, as well as reduce costs for their creation and operation by: avoiding duplication of functions; use of open interfaces; repeated use of the same type of elements. The research concerns the structural synthesis of the architectures of four main telecommunication networks: transport, IP, mobile and fixed. Eight sets of network resources (levels) were selected to standardize each network architecture. Based on the results of the analysis, it is possible to draw a conclusion about the development potential of each network depending on the trends of modern telecommunications services. The telecommunication services means of production architecture, which include platforms of network resources and network services, is considered. The article proposes a methodological basis for the synthesis of information and communication technology systems in order to establish a single information platform, which is presented as a universal architecture of information and communication systems. The messaging service is considered in the context of: one workstation, one domain and interconnection between domains. The efficiency of information transmission systems is considered. When evaluating different communication systems, two indicators were taken into account: efficiency and noise immunity; their combination gives a fairly complete description of the system. The most perfect system is the one that provides the greatest efficiency at a given noise immunity or, conversely, the greatest noise immunity at a given efficiency.
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Zykin, Mikhail, e Sergey Novikov. "RESEARСH OF METHODS FOR MONITORING OF TELEСOMMUNIСATION SYSTEMS". Interexpo GEO-Siberia 6, n. 2 (2019): 105–9. http://dx.doi.org/10.33764/2618-981x-2019-6-2-105-109.
Testo completoAbstract (sommario):
Key properties and general parameters of telecommunication network monitoring methods are described. Telecommunication network monitoring methods are analyzed. The advantages and disadvantages of these monitoring methods are revealed.
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Mikhailov, R. "Model of Information Contacts Between Telecommunication Devices of Special Purpose Infocommunication System and Opposing Side Means of Monitoring and Impact". Proceedings of Telecommunication Universities 6, n. 3 (2020): 17–27. http://dx.doi.org/10.31854/1813-324x-2020-6-3-17-27.
Testo completoAbstract (sommario):
Currently, information conflicts are an integral part of conflicts between different organizational and technical systems in many areas of activity. The solution to the problem of achieving information superiority in an information conflict in the special sphere is assigned to special purpose info-telecommunication systems. According to the author's approach, they include telecommunications and information components, as well as monitoring and impact subsystems. At the same time, the information conflict under consideration is characterized by the presence of two opposing special purposes infocommunication systems, which correspond to two different sides of the conflict. In each infocommunication systems, the means of the monitoring subsystem are designed to provide control systems with the necessary amount of operational information for making decision, and the means as part of the influence subsystem are making it difficult to collect information from the opposing special purposes infocommunication system. Conflict interaction between infocommunication system can be represented in the form of information contacts by means of observation and influence with telecommunication devices as part of the opposing infocommunication systems. In this regard, the formalization of these information contacts and analyzing the potential contribution of these subsystems to the information superiority achievement in the information conflict is an urgent scientific task. The aim of the work is to develop a model of contacts and to evaluate the effectiveness of various options for the distribution of telecommunication devices between the the monitoring subsystems and the impact of the opposing side from the standpoint of achieving information superiority in an information conflict.
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Koudouridis, Georgios P., Serveh Shalmashi e Reza Moosavi. "An Evaluation Survey of Knowledge-Based Approaches in Telecommunication Applications". Telecom 5, n. 1 (26 gennaio 2024): 98–121. http://dx.doi.org/10.3390/telecom5010006.
Testo completoAbstract (sommario):
The purpose of this survey study is to shed light on the importance of knowledge usage and knowledge-driven applications in telecommunication systems and businesses. To this end, we first define a classification of the different knowledge-based approaches in terms of knowledge representations and reasoning formalisms. Further, we define a set of qualitative criteria and evaluate the different categories for their suitability and usefulness in telecommunications. From the evaluation results, we could conclude that different use cases are better served by different knowledge-based approaches. Further, we elaborate and showcase our findings on three different knowledge-based approaches and their applicability to three operational aspects of telecommunication networks. More specifically, we study the utilization of large language models in network operation and management, the automation of the network based on knowledge-graphs and intent-based networking, and the optimization of the network based on machine learning-based distributed intelligence. The article concludes with challenges, limitations, and future steps toward knowledge-driven telecommunications.
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Lin, James C. "Telecommunications health and safety: The Covid-19 pandemic and 5G cellular telecommunication systems". URSI Radio Science Bulletin 2020, n. 372 (marzo 2020): 56–59. http://dx.doi.org/10.23919/ursirsb.2020.9240107.
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Khasanov, Doston, Khalimjon Khujamatov, Bayram Fayzullaev e Ernazar Reypnazarov. "WSN-BASED MONITORING SYSTEMS FOR THE SOLAR POWER STATIONS OF THE TELECOMMUNICATION DEVICES". IIUM Engineering Journal 22, n. 2 (4 luglio 2021): 98–118. http://dx.doi.org/10.31436/iiumej.v22i2.1464.
Testo completoAbstract (sommario):
Renewable energy sources are an increasingly popular way to generate electrical energy for telecommunications systems. The use and effectiveness of remote monitoring systems in such systems has led to growing interests relatively to it. As with any new technological systems, new problems have arisen in the use of renewable energy sources in telecommunications systems and the use of IoT-based remote monitoring systems in them. In particular, one of these problems is the decentralization of remote monitoring systems for renewable power plants of telecommunication systems. The paper details the stages of development and modelling of open-source centralized monitoring systems for solar power station of telecommunication systems. In this paper, a real-time remote monitoring system of solar power sources was modelled and investigated by wireless sensor networks of telecommunications devices. Proteus software environment was obtained for modelling. Before modelling the system, a system structure and a block diagram were developed, each of the elements that are part of the system is described. Software for the system was created. The developed structure and software were tested by modelling. The results of the modelling were presented in a virtual terminal, an oscillography, and a local web browser. ABSTRAK: Sumber tenaga boleh baharu semakin meningkat popular dalam menghasilkan tenaga elektrik bagi sistem telekomunikasi. Penggunaan dan keberkesanan sistem pemonitoran jarak jauh dalam jaringan ini telah membawa kepada peningkatan minat kepada tenaga boleh baharu. Walau bagaimanapun, melalui sistem teknologi baru ini, masalah baru timbul dalam penggunaan punca tenaga boleh baharu dalam sistem telekomunikasi dan penggunaan bersama sistem pemonitoran berdasarkan IoT. Khususnya dalam desentralisasi sistem pemonitoran jarak jauh bagi loji kuasa sistem telekomunikasi. Kajian ini merincikan peringkat pembinaan dan model sumber terbuka berpusat sistem pemonitoran bagi sistem janakuasa solar sistem telekomunikasi. Kajian ini turut memodelkan sistem pemonitoran jarak jauh secara langsung bagi sumber kuasa solar dan dikaji dengan rangkaian sensor tanpa jaringan bagi alatan telekomunikasi. Perisian Proteus telah dihasilkan bagi model ini. Sebelum model sistem dibina, struktur sistem dan gambar rajah blok dibina. Setiap unsur dalam sistem ini diperihalkan. Perisian bagi sistem ini turut dibina. Struktur yang dibina dan perisian ini diuji melalui model. Hasil dapatan model dibentangkan dalam pangkalan maya, oscilograf dan pelayar web tempatan.
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Nahlah M.A.M Najm, Nahlah M. A. M. Najm, Nada Adnan Taher Nada Adnan Taher e Oleksandr Valchenko, Oleksandr Turovsky Oleksandr Valchenko, Oleksandr Turovsky. "IMPROVEMENT OF THE METHODOLOGY FOR EVALUATING THE CARRIER FREQUENCY OF THE SIGNAL DURING DATA TRANSMISSION IN TELECOMMUNICATION CONTROL AND DISTANCE LEARNING SYSTEMS". PIRETC-Proceeding of The International Research Education & Training Centre 24, n. 03 (15 maggio 2023): 56–65. http://dx.doi.org/10.36962/piretc24032023-56.
Testo completoAbstract (sommario):
Effectiveness of the application of telecommunications systems is directly influenced by the effectiveness of the functioning of each component and device of its design. The article directly examines the issue of improving the carrier frequency estimation methodology for data transmission in telecommunication management and distance learning systems. The essence of the solution lies in proposals for improving the efficiency of frequency estimation at the input signal synchronization stage, which is presented on the example of a satellite telecommunication control system and distance learning. Namely, the analysis of modern satellite telecommunications systems was carried out and the features that affect the effectiveness of carrier frequency estimation and input signal synchronization were determined. The main inconsistencies are the low energy of the input signal receiving channel, significant signal frequency uncertainty, and the presence of "neighboring channels" receiving the input signal. It was determined that satellite communication systems during data transmission work in the mode with multi-station access in the variant of operation with frequency division of channels, which can receive data packets in the mode of multiple access or when providing a data reception channel on demand. At the same time, the operation of telecommunications systems can proceed both in continuous and in batch modes of receiving the input signal. It is considered that coherent processing of the input signal is carried out in demodulators of satellite telecommunications and interference-resistant coding is used. To solve the task of estimating the carrier frequency of the input signal in coherent demodulators of modern satellite telecommunications, considering the above-defined inconsistencies and features, the article proposes a methodical approach. The essence of this approach is to determine the potential boundary of variances of the obtained estimates of the carrier frequency and to develop algorithms for estimating the carrier frequency of the input signal separately for continuous and batch modes of input data transmission based on the fast Fourier transform. Keywords: Frequency, signal, uncertainty, carrier, estimation.
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Eby, D., J. Robson e M. Columbus. "MP030: Problems in paramedic-physician telecommunication". CJEM 18, S1 (maggio 2016): S76. http://dx.doi.org/10.1017/cem.2016.171.
Testo completoAbstract (sommario):
Introduction: Clear paramedic-physician telecommunications (patches) are critical in systems utilizing on-line medical control. In systems using extensive medical directives individual paramedics patch infrequently. Investigations of specific problem calls indicated that communication problems were more common than believed. Existing literature on this topic is sparse. This project is a quality assurance exercise undertaken to understand the extent and nature of problems in paramedic-physician telecommunications Methods: Retrospective analysis of anonymized transcriptions made from MP3 audio files recorded as part of normal operating procedures by the Central Ambulance Communication Centre during January-March 2014. All calls where telecommunication occurred between paramedics from 4 ambulance services and base hospital physicians providing on-line medical oversight during ambulance calls were included. Transcripts were read multiple times and data extracted onto spreadsheets for frequency analysis. Further thematic framework analysis of emergent themes was done. Results: All 42 patches were transcribed and used for analysis. 36 (85.7%) were for termination of resuscitation orders, 4 (9.5%) were for advice, and 2 (4.8%) were for orders not covered by medical directives. Communication problems were identified in 40 (95.2%) patches. Most had multiple problems. These included disconnections (23.8%), difficulty hearing one another (40.5%) - indicated by phrases such as “sorry?” “what?”, “I can’t hear you” - or caused by individuals interrupting each other (83.3%), and talking simultaneously (47.6%). Signaling the end of “talk turns” - such as “10-4” or “over” - was never used. Instead, terms like “yah” and “OK” were used. When communication went awry, time was spent trying to repair the mis/poor communication. This led to repeating information or attempting to ‘sell’ the case by providing information unnecessary for decision making - such as during a request for termination of resuscitation, “there is vomit on the floor”. Conclusion: Paramedic-physician telecommunication problems were extremely common. They involved technical (mechanical problems) and human factors (disorganized radio ‘technique’). The high incidence of telecommunication problems identified is concerning. Critical clinical decisions (e.g. ceasing resuscitation) depend on clear communication. Further study of these issues is warranted.