Bibliografie tematiche / Telecommunications

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Letteratura scientifica selezionata sul tema "Telecommunications"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 16 novembre 2024

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Articoli di riviste sul tema "Telecommunications"

Singh, N. P. "Competitive Landscape of Mobile Telecommunications Tower Companies in India". International Journal of Interdisciplinary Telecommunications and Networking 2, n. 1 (gennaio 2010): 49–81. http://dx.doi.org/10.4018/jitn.2010010104.

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With the entry of 3G and WiMAX players, the Indian mobile subscriber base is expected to reach 1110 million by the end of 2015. To meet mobile infrastructure demand, India will require approximately 350,000 to 400,000 mobile telecommunications towers in the next 7 to 8 years. Presently only 40% of mobile telecommunications towers are shared in India. The high growth of subscribers and initial cost of mobile telecommunications towers and license conditions will force mobile network operators to share infrastructure with other mobile network operators, specifically with new operators. The Indian government has allowed sharing of passive and active components of mobile telecommunication infrastructure. With the changing demand of the telecommunications infrastructure, many new telecommunications tower business entities and companies and mobile telecommunications tower business models are being explored. In this paper, the author presents the landscape of the mobile telecommunications tower industry in India, which consists of four types of companies and trends with respect to the strategies of telecommunication tower companies, especially tenancy ratio. Emerging features of the mobile telecommunication towers industry in India are also presented.

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Ariprawira, Galih, Lessy Sutiyono Aji, Ade Wahyudin e Alfin Hikmaturokhman. "Policy Mechanism for Security of National Vital Objects in the Telecommunications Sector in Indonesia". Buletin Pos dan Telekomunikasi 21, n. 2 (26 dicembre 2023): 57–73. http://dx.doi.org/10.17933/bpostel.v21i2.379.

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Telecommunication infrastructure is part of critical infrastructure because it has a vital role in the community and affects the country's economy. Therefore, telecommunications infrastructure can be classified as a vital national object, requiring a particular security mechanism in its deployment. However, telecommunication infrastructure has different characteristics than other sectors, where the operation is fixed and mobile. Using a descriptive-analytical approach, data is obtained from benchmarks and interviews with resource persons from various fields through several Forum Group Discussion activities. Each telecommunications network operator can apply for National Vital Objects in the Telecommunications Sector based on the mechanism under the guidelines for determining the national vital object in the telecommunications sector stipulated through a Ministerial Regulation. The regulation covers various aspects, including the mechanism for determining, evaluating, fostering, and responsibilities of National Vital Objects in the Telecommunications Sector. In its implementation, the National Vital Objects in the Telecommunications Sector manager coordinates with various security parties, such as the Indonesian National Police. With the policy of the National Vital Objects in the Telecommunications Sector implementation mechanism, it is hoped that the telecommunications infrastructure can be well protected so that the business climate of telecommunications operations remains conducive and telecommunications services can always support the development and strengthening of the national economy.

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Askani, Askani, Dhika Alfatah, Tri Purwanti, By Kasdi e Novi Rahayu. "Penyuluhan Perkembangan Inovatif Telekomunikasi di Desa Padang Padang Ulak Tanjung". Jurnal Semarak Mengabdi 1, n. 2 (29 luglio 2022): 59–64. http://dx.doi.org/10.56135/jsm.v1i2.61.

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The development of telecommunications technology in the world occurs very rapidly due to the need for to communicate and exchange data quickly, easily and mobile. Science Development about Innovative Telecommunications that exist not only develop in quality and competitiveness. In use Modern technology that exists today. With the aim of producing a society with high potential in science Knowledge of Innovative Telecommunication that has competitiveness and improves the ability of Science Telecommunication Innovative through the development of Leading Commodities from the Telecommunication Innovative Materials.Strategies that will be carried out in introducing Knowledge About Innovative Telecommunications in Padang Village Ulak Tanjung, Talang Empat District, Central Bengkulu Regency.

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Samuel Olaoluwa Folorunsho, Olubunmi Adeolu Adenekan, Chinedu Ezeigweneme, Ike Chidiebere Somadina e Patrick Azuka Okeleke. "Developing smart cities with telecommunications: Building connected and sustainable urban environments". Engineering Science & Technology Journal 5, n. 8 (22 agosto 2024): 2492–519. http://dx.doi.org/10.51594/estj.v5i8.1441.

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The rapid urbanization experienced globally has necessitated the development of smart cities, integrating advanced telecommunications to create connected and sustainable urban environments. This review paper explores the pivotal role of telecommunications in the evolution of smart cities, highlighting its impact on enhancing connectivity, improving public services, and fostering sustainable development. By leveraging Internet of Things (IoT) technologies, telecommunications infrastructure facilitates real-time data exchange and efficient resource management, essential for smart city operations. The paper synthesizes existing literature, case studies, and industry reports to provide a comprehensive overview of telecommunication advancements and their urban applications. Key findings reveal that robust telecommunications networks are foundational to smart city initiatives, enabling seamless communication between devices, infrastructure, and citizens. The review identifies critical areas where telecommunications drive sustainability, such as smart grids, intelligent transportation systems, and environmental monitoring. Moreover, the research underscores the importance of strategic planning and investment in telecommunication infrastructure to address challenges such as data security, privacy concerns, and digital divide issues. The conclusions drawn from this review emphasize that effective telecommunication systems are indispensable for the realization of smart cities, offering significant benefits in terms of economic growth, environmental sustainability, and enhanced quality of life for urban residents. In summary, this paper provides a comprehensive analysis of how telecommunications underpin the development of smart cities, advocating for policies and frameworks that support the integration of advanced telecommunication technologies to build more connected, efficient, and sustainable urban environments. Keywords: Smart Cities, Telecommunications, 5G Technology, Internet of Things (IoT), Artificial Intelligence (AI), Machine Learning, Edge Computing, Public-Private Partnerships (PPPs), Cybersecurity, Urban Planning, Data Analytics, Sustainable Development, Smart Infrastructure, Regulatory Frameworks, Citizen Engagement.

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Atsu, Francis, Charles Agyei, William Phanuel Darbi e Sussana Adjei-Mensah. "The impact of telecommunication revenue on economic growth: evidence from Ghana". African Journal of Economic and Management Studies 5, n. 2 (1 luglio 2014): 195–208. http://dx.doi.org/10.1108/ajems-10-2011-0076.

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Purpose – The purpose of this paper is to investigate the long-run impact of telecommunications revenue and telecommunications investment on economic growth of Ghana for the time horizon 1976-2007. Design/methodology/approach – The paper uses the Augmented Dickey Fuller and Phillips Perron unit root test to explore the stationarity property of the variables and the Engle-Granger residual-based test of cointegration to model an appropriate restricted error correction model. Findings – The outcome of the analysis produced mixed results. Telecommunications revenue does not contribute significantly whilst telecommunications investment does. Practical implications – Policy makers will have to deal with a conundrum; while designing targeted policies that will attract more telecommunication investment in order to maximize the corresponding revenues and the economic growth it brings in its wake, they must at the same time find ways and resources to grow the economy to a point or threshold where revenue from telecommunications can have the much needed impact on their economies. Originality/value – The study is one of the first that has investigated the line of causality between telecommunication revenue and economic growth unlike previous research that mainly focused on the impact of telecommunication infrastructure on economic development.

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Yang, Kaidi, e Shaorong Li. "Impact of Telecommunications Infrastructure Construction on Innovation and Development in China: A Panel Data Approach". Sustainability 16, n. 14 (14 luglio 2024): 6003. http://dx.doi.org/10.3390/su16146003.

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This paper empirically studies the impact of telecommunications infrastructure construction on economic and social innovative development using panel data from 31 provinces in China spanning from 2009 to 2022. The research findings indicate that telecommunication infrastructure significantly promotes innovation in terms of R&D investment, knowledge output, and application output. In addition, at various stages of telecommunication technology development, the impact on innovative development varies. Iterative updates in telecommunication technology drive higher R&D expenditures, facilitating better utilization of innovation outcomes in industries. Moreover, there are regional disparities in the influence of telecommunications infrastructure on economic and social innovative development. In the eastern regions, telecommunications infrastructure construction primarily promotes mobile communication, with clear spillover effects. In contrast, in western regions, it mainly facilitates fixed communication networks. Thus, further strengthening telecommunications infrastructure construction provides a new impetus for social innovative development and long-term sustainability. It is essential to persistently advance the coordinated construction of mobile and fixed communication infrastructure to achieve regional development coordination.

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BRATITSA, M., e B. SANDUL. "On measures to ensure the quality of telecommunication services". INFORMATION AND LAW, n. 2(5) (28 maggio 2012): 146–53. http://dx.doi.org/10.37750/2616-6798.2012.2(5).271951.

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Concerning settlement of the relations between operators/providers of telecommunications and consumers in questions of providing of quality of telecommunication services at level which is established by the legislation of Ukraine in the sphere of telecommunications.

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Shi, Tao, Peng Zhang e Fang Cheng. "The Design and Application of Telecommunication Network Resources Abstract Model". Applied Mechanics and Materials 602-605 (agosto 2014): 3451–56. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.3451.

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Model Tao Shi ,Peng Zhang and Fang Cheng School of Chongqing University of Posts and Telecommunications, Chongqing 400065, China shitao12300@163.com Keywords: telecommunications network resources, resource model, object-oriented, virtualization technology, network management system Abstract. In order to manage and utilize telecommunication network resources more effectively, aiming at the shortage of the resource management of telecom network management system, through the study the concept of the shared information data (SID) model in the new generation of telecom operation support system (NGOSS) , according to the characteristics of the telecommunications network resources, telecommunications network resource model with object-oriented approach is proposed and designed. Meanwhile, Combined with telecommunication network business resource model to illustrate the mechanism of telecom network resource by users applications in network management system. Experiments have proved that resource model can provide powerful support for complex network management.

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Franchuk, Olena, Mariana Petrova e Galina Tolkachova. "Elements of control of competitiveness of telecommunication companies". Economics, ecology, socium 2, n. 4 (31 dicembre 2018): 22–30. http://dx.doi.org/10.31520/2616-7107/2018.2.4-3.

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Introduction. The importance of telecommunications in the socio-economic sphere is growing, providing support for the development of the national economy, since the priority development of telecommunications, compared with the overall pace of economic development, significantly increases the competitiveness of the Ukrainian economy. Therefore, the management of telecommunications companies is defined as one of the priority areas of government in the face of growing competition, which makes the problem of increasing the competitiveness of telecommunications services and the telecommunications operator as a whole urgent. Aim and tasks. The aim of the article is to study the methodological issues of substantiating the elements of enterprise competitiveness in the telecommunications services market, as well as studying the gradation of the level of competitiveness and recommendations for their use in managing the competitiveness of an enterprise. Results. The scientific and theoretical approaches to the essence of the concept of «competitiveness» are considered. The study made it possible to form its own scientific vision of the economic category “competitiveness of telecommunication companies”. It is noted that modern global trends in the development of the telecommunications market affect its new type in the conditions of the formation of the information society. The main forms of competition in the telecommunications services market are considered. The features of modern telecommunications are highlighted. Disclosed policy in the space of competition regulation in the market of telecommunication services. Conclusions. Identified and analyzed the basics of managing the competitiveness of telecommunications companies operating in a competitive environment, which is characterized by constant technological innovation.. The main elements of the process of managing the competitiveness of telecommunications companies are substantiated as components of the internal and external environment that determine or can determine the future performance of the company in the international and domestic markets, which will help create the conditions for the implementation of a highly developed information and telecommunications infrastructure to provide telecommunications services to all segments of the population.

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Röller, Lars-Hendrik, e Leonard Waverman. "Telecommunications Infrastructure and Economic Development: A Simultaneous Approach". American Economic Review 91, n. 4 (1 settembre 2001): 909–23. http://dx.doi.org/10.1257/aer.91.4.909.

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In this paper we investigate how telecommunications infrastructure affects economic growth. We use evidence from 21 OECD countries over a 20-year period to examine the impacts that telecommunications developments may have had. We jointly estimate a micromodel for telecommunication investment with a macro production function. We find evidence of a significant positive causal link, especially when a critical mass of telecommunications infrastructure is present. Interestingly, the critical mass appears to be at a level of telecommunications infrastructure that is near universal service. (JEL O57, O47, L69)

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Tesi sul tema "Telecommunications"

Tsan, Siu-yan. "Deregulation of telecommunications market in Hong Kong /". [Hong Kong] : University of Hong Kong, 1993. http://sunzi.lib.hku.hk/hkuto/record.jsp?B13497947.

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Cadwallader, Neil Kenneth. "Telecommunications trends". Thesis, Monterey, Calif. : Naval Postgraduate School, 1992. http://handle.dtic.mil/100.2/ADA251670.

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Weston, Christopher Philip Anthony. "Costing telecommunications services". Thesis, Imperial College London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307352.

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Lo, Yu-Shan. "Essays on telecommunications". Thesis, University of York, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.533519.

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Teixeira, David José Miranda. "Telecommunications infrastructure sharing". Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/18716.

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Mestrado em Engenharia Eletrónica e Telecomunicações
As telecomunicações móveis têm enfrentado enormes desafios em todo o mundo, com especial ênfase nos países emergentes. A sua crescente importância para o crescimento das economias dos países tornam a sua presença essencial num mundo cada vez mais global e tecnológico. A partilha de infraestruturas de telecomunicações torna a implementação de comunicações móveis numa dada região ou país mais facilitada. No caso de Moçambique, que é dos países mais pobres do mundo, a partilha seria uma estratégia interessante de forma a permitir um rápido crescimento dos serviços de telecomunicações. Neste projeto, foi desenvolvida uma ferramenta que auxilia o estudo tecno-económico de cenários de partilha de infraestruturas de telecomunicações. Esta ferramenta permitiu assim criar cenários para a realidade Moçambicana. Esta dissertação pretende contribuir para o desenvolvimento da área das telecomunicações em mercados emergentes.
Mobile telecommunications have been facing a vast number of challenges across the globe, with special emphasis on emerging countries. Their increasing importance for economic growth of countries make the presence of infrastructure essential in a progressively more global and technological world. Sharing telecommunication infrastructures can facilitate the implementation of mobile communications in a giving region or country. In the case of Mozambique, one of the poorest country of the world, a sharing strategy could potentially allow for a rapid expansion of telecommunication services. In this work project, a tool that supports the techno-economic study of scenarios of telecommunication infrastructure sharing was developed. Through this mechanism, scenarios that consider the Mozambican’s reality have been set up. This dissertation aims then to contribute to the development of the telecommunications sector in emerging markets.

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Möller, Niels. "Automatic control in TCP over wireless". Licentiate thesis, KTH, School of Electrical Engineering (EES), 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-444.

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Over the last decade, both the Internet and mobile telephony has become parts of daily life, changing the ways we communicate and search for information. These two distinct tools are now slowly merging. The topic of this thesis is TCP over wireless, and the automatic control that is used both within the system, from the link-layer power control to the end-to-end congestion control. It consists of three main contributions.

The first contribution is a proposed split-connection scheme for downloads to a mobile terminal. A wireless mobile terminal requests a file or a web page from a proxy, which in turn requests the data from a server on the Internet. During the file transfer, the radio network controller (RNC) sends radio network feedback (RNF) messages to the proxy. These messages include information about bandwidth changes over the radio channel, and the current RNC queue length. A novel control mechanism in the proxy uses this information to adjust the sending rate. The stability and convergence speed of the proxy controller is analyzed theoretically. The performance of the proposed controller is compared to end-to-end TCP Reno, using ns-2 simulations of realistic use cases. It is shown that the proxy control is able to reduce the response time experienced by users, and increase the utilization of the radio channel. The changes are loalized to the RNC and the proxy; no changes are required to the TCP implementation in terminal or server.

The second contribution is the analysis of an uplink channel using power control and link-layer retransmissions. To be able to design the link-layer mechanisms in a systematic way, good models for the link-layer processes, and their interaction with TCP, are essential.The use of link-layer retransmissions transforms a link with constant delay and random losses into a link with random delay and almost no losses. As seen from the TCP end points, the difference between such a link and a wired one is no longer the loss rate, but the packet delay distribution. Models for the power control and link-layer retransmissions on the link are used to derive packet delay distribution, and its impact on TCP performance is investigated.

The final contribution considers ways to optimize the link-layer processes. The main result is that TCP performance, over a wireless link with random retransmission delays, can be improved by adding carefully chosen artificial delays to certain packets. The artificial delays are optimized off-line and applied on-line. The additional delay that is applied to a packet depends only on the retransmission delay experienced by that same packet, and this information is available locally at the link.

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Simmons, Matthew R. "Telecommunications technology and service changes since the Telecommunications Act of 1996". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion-image/02sep%5FSimmons%5FMatt.pdf.

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Eroglu, Ismail. "Prospects for Privatization of the Turkish Telecommunications System". Thesis, University of North Texas, 1992. https://digital.library.unt.edu/ark:/67531/metadc501090/.

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Turkey is considering privatizing its telecommunications system. Any developing country must analyze whether its economic, social, and institutional environment is appropriate for the privatization of a utility. The purposes of this study are (1) to establish a model to assist policy makers, (2) to analyze whether Turkey meets the prerequisites for telecommunications privatization, and (3) to provide Turkish leaders pragmatic policy alternatives pertaining to privatization of the Turkish Telecommunications system.High inflation rate, weakness of the private sector and the lack of regulatory regime are the major impediments facing Turkey's privatization efforts. Turkey might consider several options including (1) not privatizing at all, (2) retaining public ownership of the network operations while privatizing only the physical equipment market, or (3) following the British privatization model.

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Kim, Eun Ju. "Dynamic interlinkage between the Republic of Korea and the International Telecommunication Union through evolving telecommunications issue-structures". Thesis, City University London, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252963.

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Lu, You. "China telecommunications market : an overview and proposed strategy for foreign telecommunications companies". Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/10960.

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Più fonti

Libri sul tema "Telecommunications"

National Communications System (U.S.). Office of Technology & Standards e United States. General Services Administration. Office of Information Resources Management (1990- ), a cura di. Telecommunications, glossary of telecommunication terms. [Washington, D.C.]: General Services Administration, Office of Information Resources Management, 1991.

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National Communications System (U.S.). Technology & Standards Division. e United States. General Services Administration. Information Technology Section., a cura di. Telecommunications: Glossary of telecommunication terms. Rockville, Md: Government Institutes, 1997.

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

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Cole, Marion. Telecommunications. Upper Saddle River, N.J: Prentice Hall, 1999.

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Union, International Telecommunication, a cura di. World telecommunication development report: Trade in telecommunications. Geneva: International Telecommunication Union, 1997.

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Dordick, Herbert S. Understanding modern telecommunications. New York: McGraw-Hill, 1986.

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Oxlade, Chris. Telecommunications. Austin, Tex: Raintree Steck-Vaughn, 1997.

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Stevenson, John. Telecommunications. Morristown, N.J: Silver Burdett Co., 1985.

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Servin, Claude. Telecommunications. London: Springer London, 1999. http://dx.doi.org/10.1007/978-1-4471-0893-1.

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Environment, Great Britain Department of the. Telecommunications. London: HMSO, 1988.

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Capitoli di libri sul tema "Telecommunications"

Rossi, Cesare, e Flavio Russo. "Telecommunications". In History of Mechanism and Machine Science, 237–52. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-44476-5_16.

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Ansari, Nirwan, e Edwin Hou. "Telecommunications". In Computational Intelligence for Optimization, 127–48. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-6331-0_8.

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Storm, David R. "Telecommunications". In Winery Utilities, 45–63. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-017-5282-4_3.

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Locker, Yvonne. "Telecommunications". In Business Workshop, 121–32. London: Palgrave Macmillan UK, 1991. http://dx.doi.org/10.1007/978-1-349-11727-7_12.

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Kerr, David. "Telecommunications". In Information Technology & The Law, 173–83. London: Palgrave Macmillan UK, 1990. http://dx.doi.org/10.1007/978-1-349-11768-0_9.

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Storm, David R. "Telecommunications". In Winery Utilities, 45–63. Boston, MA: Springer US, 2001. http://dx.doi.org/10.1007/978-1-4757-6973-9_3.

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Bertotti, Bruno, Paolo Farinella e David Vokrouhlický. "Telecommunications". In Astrophysics and Space Science Library, 621–40. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-010-0233-2_19.

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Abbott, Alden F. "Telecommunications". In Encyclopedia of Law and Economics, 2013–18. New York, NY: Springer New York, 2019. http://dx.doi.org/10.1007/978-1-4614-7753-2_471.

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Abbott, Alden F. "Telecommunications". In Encyclopedia of Law and Economics, 1–6. New York, NY: Springer New York, 2016. http://dx.doi.org/10.1007/978-1-4614-7883-6_471-1.

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Bettio, Francesca. "Telecommunications". In Equal Pay in Europe?, 120–43. London: Palgrave Macmillan UK, 1998. http://dx.doi.org/10.1007/978-1-349-26559-6_7.

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Atti di convegni sul tema "Telecommunications"

Mynampati, Venkata Naga Poornima, Feroz Ahamed Iqbal Mariam, Bharath Krishnan Muralidharan e Dereje Agonafer. "Review of Reliability of the Cooling Technologies in the Telecommunications Systems". In 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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ŽUNIĆ, ALEKSANDRA, e IVICA BAČVANSKI. "ANALIZA UTICAJA DALEKOVODA NA TELEKOMUNIKACIONE VODOVE". In 36. Savetovanja CIGRE Srbija 2023 Fleksibilnost elektroenergetskog sistema. Srpski nacionalni komitet Međunarodnog saveta za velike električne mreže CIGRE Srbija, 2023. http://dx.doi.org/10.46793/cigre36.0604z.

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Abstract—The existence of telecommunication lines in the nearby should be considered with the design of overhead transmission line. Due to the permanent load on power lines, induced electromotive force, noise and interference voltage occur in telecommunications lines. For this reason, these impacts must be carefully investigated in order to implement adequate protection measures. This paper presents an analysis of the impact of power lines on telecommunications lines, using the example of a report that considered the impact of the 2x400 kV power line Transformer Station Bajina Basta – border of Bosnia and Herzegovina/ border of Montenegro on telecommunication lines. The analysis has been done in accordance with JUS N.C0.101 and JUS N.C0.102 standards. In order to simplify calculations, TeleCAD-GIS software package was used in the analysis. At the end of the paper, solutions that can reduce the effect of power lines on telecommunications lines will be discussed.

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Huber, David R. "In-Fiber Bragg Grating Devices for Telecommunications Applications". In Photosensitivity and Quadratic Nonlinearity in Glass Waveguides. Washington, D.C.: Optica Publishing Group, 1995. http://dx.doi.org/10.1364/pqn.1995.saa.2.

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The in-fiber Bragg grating is one of the most important developments in fiber telecommunications in this decade. Fiber Bragg gratings have been demonstrated that have reflectivity ranging from zero to almost one. Simple gratings have been demonstrated that have bandwidths ranging from a few GHz to many nanometers. Fiber gratings have found application in continuous wave and mode locked lasers, fiber dispersion compensation, pulse compression, fixed and tunable optical filters, add-drop filters and as demultiplexing elements. This paper will review telecommunication devices that have been realized with this key technology.

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Ohishi, Yasutake, Terutoshi Kanamori e Shoichi Sudo. "Singly and doubly doped Pr fluoride fiber amplifier operation at 1.3 μm". In 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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"Telecommunications". In 2022 International Symposium on Electronics and Telecommunications (ISETC). IEEE, 2022. http://dx.doi.org/10.1109/isetc56213.2022.10010293.

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Aguado, Marina, Oscar Onandi, Eduardo Jacob, Christian Pinedo, Purificacion Saiz e Marivi Higuero. "WiMAX Role on CBTC Systems". In 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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Salazar Suárez, Ferran, Antonio Marzoa Domínguez e Marc Crusellas Izquierdo. "Two applications for teaching and Telecommunication Engineering students the atmospheric effects on the optical channels. Applications in Astronomy, Mechanical Engineering and Telecommunications". In SEFI 50th Annual conference of The European Society for Engineering Education. Barcelona: Universitat Politècnica de Catalunya, 2022. http://dx.doi.org/10.5821/conference-9788412322262.1308.

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Atmospheric turbulence is one of the limiting phenomena in interesting applications and fields such of optical telecommunications and Observational Astronomy. Both Telecommunication and Aerospace Engineering students may encounter those applications in their professional careers, thus, there is the necessity to introduce this phenomenon and its impact on those fields at the academic formation stage. In order to teach students of the principles and effects of the atmospheric turbulence in optical propagation, and to illustrate how to solve these problems, two different applications written in MATLAB© were developed. In this communication both applications and the theoretical background are presented, and the designed activity for Telecommunication Engineers is shown. Results obtained by students and their experience performing the activity are also presented.

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Martínez, Antonio, Alejandro Liberos, Jose M. Monzo, Marcos Martinez, Jorge Daniel Martinez e Rafael Gadea. "From specialized to core course in Telecommunications degree: Experiences from digital electronic design and verification". In INNODOCT 2019. Valencia: Universitat Politècnica de València, 2019. http://dx.doi.org/10.4995/inn2019.2019.10133.

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The European Higher Education Area (EHEA) defines the competences for professional practice of a Telecommunications Engineer. The School of Telecommunication Engineering of the Universitat Politècnica de València (Valencia, Spain) provides an integrated education program consisting of a Graduate (GITST) + Master (MUIT). The GITST course offers four specialization tracks: Electronics, Telematics, Communication Systems and Multimedia for the proper acquisition of knowledge and competences of the future Telecommunications Engineers. In 2018, the graduate program has implemented a structural change in the organization of subjects for reinforcing important skills, in which a course on digital electronics design and verification (Integration of Digital Systems, ISDIGI) has been transformed into a core subject of the study plan. In this paper, we describe the methodology and adaptation of ISDIGI (i.e. a project-based learning intermediate HDL course that includes design and verification abilities) to the new GITST Curriculum. In addition, this paper describes the process of moving from specialized to core subject.

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Assis, Elvis, Emmanuel Tavares, Demóstenes Rodríguez e Renata Rosa. "Information System for the Improvement of Telecommunication Service Quality". In XIII Simpósio Brasileiro de Sistemas de Informação. Sociedade Brasileira de Computação, 2017. http://dx.doi.org/10.5753/sbsi.2017.6095.

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This work describes an information system regarding to the telecommunication service with the goal to inform to the telephony service users about the operators signal quality and the users’ opinion about the telecommunication operators. The system contains information of cellular base station locations and the results are crossed with sentiment analyses of sentences extracted from a social network, which are related to the telecommunication services. The study aims to detect complaints and dissatisfaction of users about a determined service, helping to make a relation between the users’ complains extracted from social network with the number of base stations in the same geographic area of the user's social network. Therefore, the proposed information system can be used by the National Telecommunications Agency of each country for monitoring the quality-of-service of cellular network operators.

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Morris, B. "Telecommunications security". In IEE Seminar Telecommunications Quality of Service (QoS): Vital Ingredient for Success. IEE, 2003. http://dx.doi.org/10.1049/ic:20030197.

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Rapporti di organizzazioni sul tema "Telecommunications"

Kimmins, John, Charles Dinkel e Dale Walters. Telecommunications security guidelines for telecommunications management network. Gaithersburg, MD: National Institute of Standards and Technology, 1995. http://dx.doi.org/10.6028/nist.sp.800-13.

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Hust, Gerald R. Taking Down Telecommunications. Fort Belvoir, VA: Defense Technical Information Center, settembre 1994. http://dx.doi.org/10.21236/ada285203.

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Hoffman, James H. Baseline Study: Telecommunications. Fort Belvoir, VA: Defense Technical Information Center, aprile 1992. http://dx.doi.org/10.21236/ada262621.

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Gustwiller, K. D. Telecommunications administration standard. Office of Scientific and Technical Information (OSTI), maggio 1996. http://dx.doi.org/10.2172/249227.

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Fishman, G., e S. Bradner. Internet Engineering Task Force and International Telecommunication Union - Telecommunications Standardization Sector Collaboration Guidelines. RFC Editor, agosto 2002. http://dx.doi.org/10.17487/rfc3356.

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SECRETARY OF THE AIR FORCE WASHINGTON DC. Long-Haul Telecommunications Management. Fort Belvoir, VA: Defense Technical Information Center, aprile 2002. http://dx.doi.org/10.21236/ada404971.

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Hausman, Jerry. Taxation by Telecommunications Regulation. Cambridge, MA: National Bureau of Economic Research, novembre 1997. http://dx.doi.org/10.3386/w6260.

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Christie, Lorna, e Alison Tully. Security of UK Telecommunications. Parliamentary Office of Science and Technology, agosto 2018. http://dx.doi.org/10.58248/pn584.

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Telecommunications networks are essential for the day-to-day running of UK businesses and public services, however, concerns have been raised recently over their security. This POSTnote outlines the threats to these networks, the ability of networks to cope with disruption, and possible protective measures.

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Black, James. FORTEL, a telecommunications forecasting system. Portland State University Library, gennaio 2000. http://dx.doi.org/10.15760/etd.80.

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Meiksin, Zvi H. WIRELESS MINE WIDE TELECOMMUNICATIONS TECHNOLOGY. Office of Scientific and Technical Information (OSTI), aprile 2002. http://dx.doi.org/10.2172/793665.

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