Bibliografías temáticas / Telecommunication systems

Literatura académica sobre el tema "Telecommunication systems"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 29 de julio de 2024

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Artículos de revistas sobre el tema "Telecommunication systems"

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Zieliński, Andrzej y Kazimierz Zieliński. "Mobile Telecommunication Systems Changed the Electronic Communications and ICT Market". Journal of Telecommunications and Information Technology, n.º 2 (30 de junio de 2013): 5–13. http://dx.doi.org/10.26636/jtit.2013.2.1209.

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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. y R. V. Oliynykov. "Method and technique of formal design of complex information security system in information and telecommunication systems". Radiotekhnika, n.º 203 (23 de diciembre de 2020): 91–96. http://dx.doi.org/10.30837/rt.2020.4.203.08.

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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.
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Tett, Matt. "Legacy Telecommunication Systems". Australian Journal of Telecommunications and the Digital Economy 3, n.º 4 (29 de diciembre de 2015): 63. http://dx.doi.org/10.18080/ajtde.v3n4.40.

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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.º 4 (29 de diciembre de 2015): 63–65. http://dx.doi.org/10.18080/jtde.v3n4.40.

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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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Šajić, Slavko, Nebojša Maletić, Branislav M. Todorović y Milan Šunjevarić. "Random Binary Sequences in Telecommunications". Journal of Electrical Engineering 64, n.º 4 (1 de junio de 2013): 230–37. http://dx.doi.org/10.2478/jee-2013-0033.

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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. y N. A. Zhukova. "Integration of telecommunication networks in monitoring system using domain ontologies". Ontology of Designing 12, n.º 3 (27 de septiembre de 2022): 353–66. http://dx.doi.org/10.18287/2223-9537-2022-12-3-353-366.

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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 y Liam Wotherspoon. "Resilience and fragility of the telecommunication network to seismic events". Bulletin of the New Zealand Society for Earthquake Engineering 50, n.º 2 (30 de junio de 2017): 318–28. http://dx.doi.org/10.5459/bnzsee.50.2.318-328.

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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. y A. Koucheryavy. "SURVEY ON ARTIFICIAL INTELLIGENCE TECHNIQUES IN 5G NETWORKS". Telecom IT 8, n.º 1 (abril de 2020): 1–10. http://dx.doi.org/10.31854/2307-1303-2020-8-1-1-10.

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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 y Kseniya Pudovkina. "Informational Model of Promising Database in the System of Management for Carrier Ethernet Telecommunication Network". Proceedings of Petersburg Transport University 19, n.º 3 (25 de septiembre de 2022): 421–31. http://dx.doi.org/10.20295/1815-588x-2022-3-421-431.

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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. y V. A. Korshenko. "Complex Telecommunication and Auto-Technical Expertise". Bulletin of Kharkiv National University of Internal Affairs 87, n.º 4 (22 de diciembre de 2019): 179–86. http://dx.doi.org/10.32631/v.2019.4.18.

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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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Tesis sobre el tema "Telecommunication systems"

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Pangalos, Panagiotis George. "Private telecommunications systems a systems approach /". Thesis, Monterey, California : Naval Postgraduate School, 1990. http://handle.dtic.mil/100.2/ADA241036.

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Thesis (M.S. in Telecommunications Systems Management)--Naval Postgraduate School, September 1990.
Thesis Advisor(s): Shu, Myung W. ; Gates, William. "September 1990." Description based on title screen as viewed on December 17, 2009. DTIC Identifier(s): Voice Communications, Data Communications, Private Telecommunication Systems, Theses. Author(s) subject terms: Private Telecommunications systems, Computerized Private Branch Exchanges (CPBXs), Request of Proposals (RFP), Life Cycle Costing (LLC). Includes bibliographical references (p. 100-101). Also available in print.
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Pointon, Craig T. "Nonlinear dynamics in telecommunication systems". Thesis, Staffordshire University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282553.

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Jarmoszko, Andrzej Tomasz. "Transformation of the telecommunication environment in Poland, 1989-1991". Diss., The University of Arizona, 1992. http://hdl.handle.net/10150/186028.

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In the two years 1989-1991 the environment of Poland's telecommunications was fundamentally transformed. This dissertation is an exploratory case study addressing four principal aspects of that country's changing telecommunications: (1) telecommunication regime or the structure of rules in which telecommunication systems function; (2) telecommunication services, defined as the means and methods of communicating from a distance by processing and relaying an electro-magnetic signal (categorized into telephone, mobile, data-messaging, information, data-carrier, and entertainment); (3) telecommunication equipment, or markets for switching, transmission and terminal equipment; and (4) telecommunication subscribers, or principal characteristics of the customer-base in the residential, professional, rural and urban market segments. Each aspect is examined for the purpose of capturing the on-going change. The dissertation identifies the principal agents of change and maps the new conditions onto the models developed by Cowhey and Aronson. Institutional pluralism, market competition, shortage alleviation and market restructuring have transformed Poland's telecommunication environment from the scarcity model to a version of the boutique model.
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Stergiou, Theodore. "Protocol security for third generation telecommunication systems". Thesis, University of Warwick, 2003. http://wrap.warwick.ac.uk/3023/.

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In this thesis, a novel protocol stack architecture is presented. The Future Core Networks System (FCNS) forms a secure reference model for use in packet-switched structures, with its applicability ranging from computer to telecommunication networks. An insight on currently used network protocol systems is given, analysing standardised sets of communication rules with respect to the security they afford to the messages exchanged. The lack of protection schemes for the internal protocol stack messages and the implementation pitfalls of their security architectures are described, in relation to the effects they have on the communication process. The OSI security model is also considered, with disadvantages identified in the placement of security functionality and its management. The drawbacks depicted for currently used systems form the motivation behind this work. The analysis of the FCNS follows, which is composed of three parts. In the first part, the FCNS communication layers are examined, with respect to the mechanisms used to establish, maintain and tear down a connection between peer entities. In the second part, the security mechanisms of the proposed reference architecture are given, including details on the FCNS keystream generator used for the security of the internal FCNS messages. Finally, the FCNS Error Protocol is depicted, illustrating the modes of operation and advantages it exhibits over currently used systems. The work then moves into presenting details of the software FCNS implementation, followed by the presentation of the results and measurements obtained by the case studies created. Comparisons are given in relation to the TCP/IP suite, to provide the means of identifying the FCNS applicability in various network environments. The work is concluded by presenting the FCNS functionality in delivering information for the UMTS, together with further work that may enhance the flexibility and use of the proposed architecture.
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Delivasilis, Dimitrios L. "Data security for third generation telecommunication systems". Thesis, University of Warwick, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.404694.

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Baatarjav, Enkhbat. "A model for designing a new telecommunication system in Mongolia". Thesis, University of North Texas, 2001. https://digital.library.unt.edu/ark:/67531/metadc2768/.

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The objective of this research is to design, and determine the feasibility of, a telecommunication system for the city of Erdenet, Mongolia. The Mongolian Telecommunication Company, Telecommunication Company of Erdenet city, and the National Statistical Office of Mongolia provided the data required for telecommunication forecasting of Erdenet. The literature review and analysis of the telecommunication forecasting indicate the need for a model of a new Telecommunication system in Erdenet, Mongolia. The model, as indicated, should become a useful example for planning and updating the telecommunication system in Mongolia. The design of a proposed telecommunication network involves the following considerations: analyzing and forecasting telephone traffic, calculating the required number of channels, determining exchange locations, traffic matrix, and establishing a basic hierarchical structure.
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Leelardcharoen, Kanoknart. "Interdependent response of telecommunication and electric power systems to seismic hazard". Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42742.

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Infrastructure systems are essential to the functioning of contemporary societies and economies. A major disruption to the built environment can lead to severe public safety issues and economic losses. Within the past few decades, modern control and information technologies have been rapidly developed in an attempt to improve the reliability of individual utility systems by exchanging technologies across them. One of the major ramifications is the emergence of interdependencies among these critical infrastructure systems, especially when facing major disruptions. Failure of an individual system becomes more likely to affect the functionality of other interconnected infrastructure systems. In order to mitigate such consequences, the mechanics of interdependencies and failure propagation among the systems must be understood. This research focuses on the development of a framework for probabilistically quantifying interdependent responses of two essential infrastructure systems - telecommunication and electric power systems - subjected to seismic hazards, which are one of the most powerful and geographically extensive threats. The study explores the effects of seismic hazards beyond the obvious seismic-induced physical damage to utility system facilities. In particular, the seismic evaluation of telecommunication systems considers the degradation of system performance due to physical damage and the abnormally high usage demands in telecommunication systems expected after catastrophic earthquakes. Specifically, a newly developed seismic-induced congestion model is proposed, and the probabilistic formulations of the critical interdependencies across telecommunication and power systems are presented in a probabilistic framework. The study illustrates the procedure for fragility analysis of interdependent systems and presents a practical application through a test bed implementation in Shelby County, TN. From this study, telecommunication systems are found to be very vulnerable to seismic-induced congestion. The electric power interdependencies amplify the degradation in telecommunication systems up to 50% in their vulnerability while electric power operations are heavily dependent upon telecommunication infrastructures and the fragility median of electric power system observability can decrease by 30%. The study also indicates up to 100% overestimation of the independent fragility analysis and the results reveal the relationship between system topology and the sensitivity of system performance to the intensity of interdependencies. The proposed methodology is expected to be a valuable tool for decision making in evaluating seismic mitigation strategies and also to provide the foundation for future studies on interdependent responses of other critical infrastructures.
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Archambault, Eric J. A. "Inventors, entrepreneurs and the metamorphosis of telecommunication systems". Thesis, University of Sussex, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318614.

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Petropoulos, Periklis. "Novel techniques and materials for optical telecommunication systems". Thesis, University of Southampton, 2000. https://eprints.soton.ac.uk/15506/.

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This thesis describes work on a variety of novel fibre-based, all-optical approaches to the implementation of several key telecommunications operations. It can be divided into two distinct parts. The first part relates to the generation and coherent manipulation of short pulses in all-fibre systems. The development of an actively and harmonically mode-locked polarisation-maintaining erbium fibre ring laser operating at a repetition rate of 10GHz is first presented. Long-term stable operation is ensured by the use of an optical phase lock loop to maintain resonant operating conditions. The ring laser incorporated a long length of dispersion-shifted fibre that enhanced soliton compression of the generated pulses, and a filter to allow for tuneable operation within the erbium gain bandwidth. The output was in the form of 2 - 4ps nearly transform-limited solitons, the width of which depended on pump power. A series of characterisation measurements on this laser is presented. These include autocorrelation and optical spectrum measurements of the pulses, frequency resolved optical gating (FROG) characterisation, an interpulse noise measurement, jitter measurements using the RF spectrum of the pulses, and bit error-rate measurements. A technique that uses superstructured fibre Bragg gratings for passively manipulating short pulses in a coherent manner is presented. The technique relies on filtering in both amplitude and phase the (broad) spectrum of the input pulses, thereby producing pulses of a desired spectral, and hence temporal response. The pulses generated from the erbium fibre ring laser were used in a series of experiments that demonstrated this technique. A basic pulse encoding and decoding scheme, pulse shaping of soliton pulses into square pulses, and repetition rate multiplication from 10 to 40GHz are presented. The second part of the thesis concerns a detailed characterisation of the recently discovered optical nonlinearities associated with the reflectivity of a gallium:glass interface. It is demonstrated that such mirrors can be formed at the tip of a cleaved fibre. The reflectivity of these mirrors is shown to change at the erbium wavelengths by 30% under suitable temperature and optical excitation. An assessment of the dependence of the magnitude, dynamics and optical phase response of the nonlinearity on temperature and pump power is carried out. The reproducibility of the nonlinear effect was also examined. Gallium mirrors were then used to passively Q-switch a variety of fibre lasers. Due to their broadband nature, Q-switching of lasers of significantly different lasing wavelengths was achieved (1064 and 1550nm). Pulse energies up to 10 µJ were obtained. This performance is directly comparable to that achieved using state-of-the-art (wavelength-selective) saturable absorbers.
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Chiurco, Giovanni <1982&gt. "Cooperative and reconfigurable telecommunication systems based on FPGA". Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amsdottorato.unibo.it/3466/1/Chiurco_Giovanni_CooperativeAndReconfigurableTelecommunicationSystemsBasedOnFpga.pdf.

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This work has been realized by the author in his PhD course in Electronics, Computer Science and Telecommunication at the University of Bologna, Faculty of Engineering, Italy. The subject of this thesis regards important channel estimation aspects in wideband wireless communication systems, such as echo cancellation in digital video broadcasting systems and pilot aided channel estimation through an innovative pilot design in Multi-Cell Multi-User MIMO-OFDM network. All the documentation here reported is a summary of years of work, under the supervision of Prof. Oreste Andrisano, coordinator of Wireless Communication Laboratory - WiLab, in Bologna. All the instrumentation that has been used for the characterization of the telecommunication systems belongs to CNR (National Research Council), CNIT (Italian Inter-University Center), and DEIS (Dept. of Electronics, Computer Science, and Systems). From November 2009 to May 2010, the author spent his time abroad, working in collaboration with DOCOMO - Communications Laboratories Europe GmbH (DOCOMO Euro-Labs) in Munich, Germany, in the Wireless Technologies Research Group. Some important scientific papers, submitted and/or published on IEEE journals and conferences have been produced by the author.
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Libros sobre el tema "Telecommunication systems"

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Oparin, Evgeniy, Andrey Kanaev y Mariya Saharova. SYNCHRONIZATION IN TELECOMMUNICATION SYSTEMS. ru: Publishing Center RIOR, 2023. http://dx.doi.org/10.29039/02107-1.

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The tutorial presents the basic concepts and definitions in the field of synchronization of communication networks, considers the principles of building synchronization systems, as well as issues of their technical operation and management, including under the influence of attacks by organized intruders. It is intended for full-time and part-time students of the specialty "Train traffic support systems", specializations "Telecommunication systems and networks of railway transport" and "Radio engineering systems in railway transport", as well as graduate students of the scientific specialty "Systems, networks and devices of telecommunications". It may be useful for engineers involved in the design and operation of synchronization systems and telecommunications systems.
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university, Open. Telecommunication systems. Milton Keynes: Open Uinversity Press, 1986.

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Terré, Michel, Mylène Pischella y Emmanuelle Vivier. Wireless Telecommunication Systems. Hoboken, NJ USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118625422.

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Lindsey, William C. Telecommunication systems engineering. New York: Dover Publications, 1991.

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Stremler, Ferrel G. Introduction to communication systems. 3a ed. Reading (Mass): Addison-Wesley, 1990.

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Hioki, Warren. Telecommunications. Englewood Cliffs, N.J: Prentice Hall, 1990.

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Hilliard, Robert L. Global broadcasting systems. Boston: Focal Press, 1996.

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F, Mazda F., ed. Telecommunication systems and applications. Oxford: Focal Press, 1996.

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Agrawal, G. P. Lightwave technology: Telecommunication systems. Hoboken, N.J: John Wiley & Sons, 2005.

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Paolo, Bellavista, ed. Telecommunication systems and technologies. Oxford: Eolss Publishers, 2009.

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Capítulos de libros sobre el tema "Telecommunication systems"

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Matin, Mohammad A. "Telecommunication Systems". En SpringerBriefs in Electrical and Computer Engineering, 71–87. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-70129-5_5.

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Belous, Anatoly y Vitali Saladukha. "Wireless Telecommunication Systems". En High-Speed Digital System Design, 145–75. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-25409-4_3.

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Smol, G., M. P. R. Hamer y M. T. Hills. "Switched telecommunication systems: system structure". En Telecommunications: A Systems Approach, 36–65. London: Routledge, 2023. http://dx.doi.org/10.4324/9781032644950-2.

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Ost, Alexander. "Modern Telecommunication Networks". En Performance of Communication Systems, 9–26. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-662-04421-6_2.

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Olsen, Rasmus L., Kartheepan Balachandran, Sara Hald, Jose Gutierrez Lopez, Jens Myrup Pedersen y Matija Stevanovic. "Telecommunication Networks". En Intelligent Monitoring, Control, and Security of Critical Infrastructure Systems, 67–100. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-662-44160-2_3.

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Borda, Monica, Romulus Terebes, Raul Malutan, Ioana Ilea, Mihaela Cislariu, Andreia Miclea y Stefania Barburiceanu. "Noise in Telecommunication Systems". En Randomness and Elements of Decision Theory Applied to Signals, 89–109. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-90314-5_7.

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Lazar, Aurel A. "Programming Telecommunication Networks". En Building QoS into Distributed Systems, 3–22. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-0-387-35170-4_1.

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Wierzbicki, Andrzej Piotr. "Telecommunication, Radio Broadcasting, Television". En Intelligent Systems Reference Library, 119–35. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09033-7_7.

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Terré, Michel, Mylène Pischella y Emmanuelle Vivier. "Radio Propagation". En Wireless Telecommunication Systems, 1–22. Hoboken, NJ USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118625422.ch1.

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Terré, Michel, Mylène Pischella y Emmanuelle Vivier. "F/TDMA and GSM". En Wireless Telecommunication Systems, 23–57. Hoboken, NJ USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118625422.ch2.

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Actas de conferencias sobre el tema "Telecommunication systems"

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Mynampati, Venkata Naga Poornima, Feroz Ahamed Iqbal Mariam, Bharath Krishnan Muralidharan y Dereje Agonafer. "Review of Reliability of the Cooling Technologies in the Telecommunications Systems". En ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-13016.

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The present trends in the cooling technologies have marked a significant improvement in the outdoor telecommunications systems and the need of cooling has marked an important requirement for the proper functioning of these cabinets. This aim of this paper is to review all of the articles and to gather the information regarding the different cooling technologies used and their reliability in the outdoor telecommunication systems especially the telecommunication cabinets.
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Kwasinski, Alexis. "Analysis of vulnerabilities of telecommunication systems to natural disasters". En 2010 4th Annual IEEE Systems Conference. IEEE, 2010. http://dx.doi.org/10.1109/systems.2010.5482356.

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Shirokov, Igor B., Vladislav V. Golovin, Yuri N. Tyschuk y Elena A. Redkina. "Antenna for Telecommunication Systems". En 2020 27th International Conference on Telecommunications (ICT). IEEE, 2020. http://dx.doi.org/10.1109/ict49546.2020.9239467.

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Hintz, Helmut. "Earthing of Telecommunication Systems". En INTELEC '86. IEEE, 1986. http://dx.doi.org/10.1109/intlec.1986.4794462.

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Trivedi, Aalok, Dereje Agonafer, Deepak Sivanandan, Mark Hendrix y Akbar Sahrapour. "Compact Modeling of a Telecommunication Cabinet". En ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-68134.

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Computational Fluid Dynamics (CFD) is widely used in the telecommunication industry to validate experimental data and obtain both qualitative and quantitative results during product development. A typical outdoor telecommunications cabinet requires the modeling of a large number of components in order to perform the required air flow and thermal design. Among these components, the heat exchanger is the most critical to thermal performance. The cabinet heat exchanger and other thermal components make up a complex thermal system. This thermal system must be characterized and optimized in a short time frame to support time-to-market requirements. CFD techniques allow for completing system thermal optimization long before product test data can be available. However, the computational model of the complex thermal system leads to a large mesh count and corresponding lengthy computational times. The objective of this paper is to present an overview of techniques to minimize the computational time for complex designs such as a heat exchanger used in telecommunication cabinets. The discussion herein presents the concepts which lead to developing a compact model of the heat exchanger, reducing the mesh count and thereby the computation time, without compromising the acceptability of the results. The model can be further simplified by identifying the components significantly affecting the physics of the problem and eliminating components that will not adversely affect either the fluid mechanics or heat transfer. This will further reduce the mesh density. Compact modeling, selective meshing, and replacing sub-components with simplified equivalent models all help reduce the overall model size. The model thus developed is compared to a benchmark case without the compact model. Given that the validity of compact models is not generalized, it is expected that this methodology can address this particular class of problems in telecommunications systems. The CFD code FLOTHERM™ by Flomerics is used to carry out the analysis.
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Aguado, Marina, Oscar Onandi, Eduardo Jacob, Christian Pinedo, Purificacion Saiz y Marivi Higuero. "WiMAX Role on CBTC Systems". En ASME/IEEE 2007 Joint Rail Conference and Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/jrc/ice2007-40103.

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The recent progresses in mobile telecommunications technologies have allowed railway telecommunications technology to go a step forward, and, in the same way, the railway control systems. In this sense, while the mobile telecommunications technology evolved from the first generation of analogue mobile communication systems to what is known today as B3G (Beyond 3G), the same occurred with the telecommunication systems used in railways, from those based on analogue telecommunications, to the most recent ones based on 2G such as GSM-R or TETRA. Till recently, there was a technological gap regarding high mobility environments, high transmission rate and high interactivity (low latency). However, new emerging telecommunications technologies have shortened this gap significantly. This way, the train control systems will be affected by the availability of telecommunications technologies capable of offering earth-train broadband communications in real time. This article presents a telecommunications network architecture based on WiMAX (Worldwide Interoperability for Microwave Access) mobile technology (IEEE 802.16e) that fulfils the telecommunications needs in the railway environment. The WiMAX mobile technology most relevant features are: transmission rates up to 30Mbps at 15 km distance; mobility support up to 200km/h; QoS, security, low latency, fast, scalable and cost effective deployment, mainly compared to GSM-R deployment. In the mobile node design of this network telecommunications architecture, the multipath fading effect, and the Doppler effect, present in high speed mobility scenarios, have been taken into account. An improvement in the handoff between BSs, through a neighbouring and predictive mobility algorithm, is included. The architecture proposed supports the functional and system requirements identified in the UIC Project EIRENE (European Integrated Railway Radio Enhanced Network), and demanded to GSM-R technology. Measures on a real testbed and a model developed with the discrete event simulation tool, Opnet, have been employed in this work.
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"Telecommunication networks". En 2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS). IEEE, 2017. http://dx.doi.org/10.1109/telsks.2017.8246275.

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"Telecommunication technologies, networks and systems". En 2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS). IEEE, 2017. http://dx.doi.org/10.1109/telsks.2017.8246302.

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Ohishi, Yasutake, Terutoshi Kanamori y Shoichi Sudo. "Singly and doubly doped Pr fluoride fiber amplifier operation at 1.3 μm". En OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1992. http://dx.doi.org/10.1364/oam.1992.thll1.

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Pr3+-doped fiber amplifiers show promise for use as optical amplifiers operating at 1.3 mm. They have generated immense interest in the field of telecommunications because most current optical fiber systems operate at wavelengths around 1.3 mm, which is the second telecommunication window.
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ANCU, Alina-Elena y Andreea BARBU. "IDENTIFICATION OF CRITICAL FACTORS FOR IMPROVINF THE SECURITY OF TELECOMMUNICATION SYSTEMS". En International Conference of Management and Industrial Engineering. Editura Niculescu, 2023. http://dx.doi.org/10.56177/11icmie2023.54.

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The objective of this study is to identify the vulnerabilities that can affect the security of telecommunication systems and to determine the critical factors for improving the security of telecommunication systems. The authors conducted a focus group as qualitative method used for this research with twelve specialists who have a technical position and a vast experience in the telecommunication industry to highlight the critical factors for improving the security of the telecommunication systems. Based on the given answers by the specialists, there were identified thirty-one factors that can be spitted in three categories: technological factors, human factors, and legal factors. For the research limitation, the factors were strictly identified based on the given answers by the selected participants to the focus group. As the practical implication, the authors highlighted first the factors that were defined as vulnerabilities for the security of telecommunication system and determined the critical factors that must be monitored on a regular basis by every company to maintain a safe telecommunication system. As the value of this paper, the authors selected twelve important specialists who have a vast experience in this area and using their answers, it was designed a model of the critical factors that will help every company to improve their security capabilities.
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Informes sobre el tema "Telecommunication systems"

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Grosshandler, William L. Nuisance alarms in aircraft cargo areas and critical telecommunication systems:. Gaithersburg, MD: National Institute of Standards and Technology, 1998. http://dx.doi.org/10.6028/nist.ir.6146.

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Polyakova, Tatiyana An, Ignat S. Boychenko y Nataliya An Troyan. Information and legal support of information security in the transport sector in the context of digital development. DOI CODE, 2021. http://dx.doi.org/10.18411/2021-0339-1001-46156.

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The current paper deals with the information and legal support of information security in the transport sector in the context of digital development. Thus, the development of information and telecommunication technologies and the digitalization of public relations have also affected the field of transport and transport services. There have appeared not only new Транспортное право и безопасность. 2021. № 3(39) 148 transportation means, such as unmanned aircraft, but there are also being introduced information systems related to the identification of passengers in transport. The development of electronic interaction between various subjects of information exchange in transport is a consequence of the global digitalization of public relations, which creates certain risks of enforcing information security, a threat to the information transport infrastructure.
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Eberle, Caitlyn y Zita Sebesvari. Technical Report: Space debris. United Nations University - Institute for Environment and Human Security (UNU-EHS), octubre de 2023. http://dx.doi.org/10.53324/yiku7602.

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At present, there are approximately 8,300 satellites actively orbiting the Earth, gathering and distributing vital data for space science, Earth observation, meteorology, disaster early warning systems, telecommunication, and navigation. Satellites make our lives safer, more convenient and connected, and represent critical infrastructure that is now essential for a functioning society. However, as the number of satellites increases, so does the problem of space debris, posing a threat to both functioning satellites and the future of our orbit. This technical background report for the 2023 edition of the Interconnected Disaster Risks report analyses the root causes, drivers, impacts and potential solutions for the space debris risk tipping point our world is facing through an analysis of academic literature, media articles and expert interviews.
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Beiker, Sven. Unsettled Issues Regarding Communication of Automated Vehicles with Other Road Users. SAE International, noviembre de 2020. http://dx.doi.org/10.4271/epr2020023.

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The focus of this SAE EDGE™ Research Report is to address a topic overlooked by many who choose to view automated driving systems and AVs from a “10,000-foot” perspective: how automated vehicles (AVs) will actually communicate with other road users. Conventional (human-driven) vehicles, bicyclists, and pedestrians already have a functioning system of understating each other while on the move. Adding automated vehicles to the mix requires assessing the spectrum of existing modes of communication – both implicit and explicit, biological and technological, and how they will interact with each other in the real world. The impending deployment of AVs represents a major shift in the traditional approach to ground transportation; its effects will inevitably be felt by parties directly involved with the vehicle manufacturing and use and those that play roles in the mobility ecosystem (e.g., aftermarket and maintenance industries, infrastructure and planning organizations, automotive insurance providers, marketers, telecommunication companies). Unsettled Issues Regarding Communication of Automated Vehicles with Other Road Users brings together the multiple scenarios we are likely to see in a future not too far away and how they are likely to play out in practical ways.
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Black, James. FORTEL, a telecommunications forecasting system. Portland State University Library, enero de 2000. http://dx.doi.org/10.15760/etd.80.

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Maroutsos, George. Design of a Microprocessor Controlled Telecommunication System. Portland State University Library, enero de 2000. http://dx.doi.org/10.15760/etd.2430.

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Hake, K. A. y B. G. Key. Acquisition Information Management system telecommunication site survey results. Office of Scientific and Technical Information (OSTI), septiembre de 1993. http://dx.doi.org/10.2172/10118207.

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DEPARTMENT OF THE ARMY WASHINGTON DC. Information Management: Telecommunications: Record Communications and the Privacy Communications System. Fort Belvoir, VA: Defense Technical Information Center, septiembre de 1990. http://dx.doi.org/10.21236/ada402244.

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Witherspoon, T. T. FY 97 Hanford telecommunication and information system userprofile - milestone IRM-097-003. Office of Scientific and Technical Information (OSTI), abril de 1997. http://dx.doi.org/10.2172/16854.

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Witherspoon, T. T. FY 1997 Hanford telecommunication and informations system user profile, milestone IRM-097-003. Office of Scientific and Technical Information (OSTI), septiembre de 1997. http://dx.doi.org/10.2172/325205.

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