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Letteratura scientifica selezionata sul tema "Network performance (Telecommunication)"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 30 luglio 2024

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Articoli di riviste sul tema "Network performance (Telecommunication)"

1

Gregory, Mark A. "Telecommunications Performance Monitoring and Unlimited Data". Journal of Telecommunications and the Digital Economy 5, n. 1 (31 marzo 2017): ii—iv. http://dx.doi.org/10.18080/jtde.v5n1.95.

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The Australian telecommunications industry has been slow to call for or to adopt new practices and the National Broadband Network has exacerbated the problem of technology adoption lag. There are two key issues facing telecommunication consumers today. The cost of optical networking has significantly reduced over the past five years so there is no justification for the network congestion that occurs on Australian telecommunication networks. To remedy this situation the introduction of performance monitoring is fully supported. It is time for the telecommunications industry to adopt new broadband business models that are based on the provision of unlimited data and a maximum of 90 to 95 per cent utilisation on optical network links.

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2

Chedia, Nugzar, e Marina Chkhartishvili. "Study of the Telecommunication Networks Performance and Reliability Indicators". WSEAS TRANSACTIONS ON SYSTEMS AND CONTROL 18 (19 luglio 2023): 204–17. http://dx.doi.org/10.37394/23203.2023.18.21.

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It is currently urgent to improve the technical characteristics and increase the efficiency of telecommunication networks because of the global problem of ensuring the reliable transmission, processing and protection of commercial information in telecommunication networks. The aim of this study is to assess the reliability indicators of telecommunication networks and analyse the level of their development. The aim was achieved through the methods that were used to assess the reliability of the entire network: the generalized method of analytical assessment of the telecommunication network reliability; connection-based metrics; scaling of telecommunication networks, and application of unified reliability indicators to routine control, operation and maintenance. As a result of the research, the indicators of telecommunication networks were studied with and without using connection-based metrics. As a result, the network metrics were also divided into distribution and generation/transmission reliability and telecommunication network metrics – into connection-, performance-, and condition-based metrics, which showed improvements in network performance and reliability. As a prospect for further research, studying and improving the telecommunication network reliability indicators is suggested.

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3

Giovinazzi, Sonia, Andrew Austin, Rob Ruiter, Colin Foster, Mostafa Nayyerloo, Nirmal-Kumar Nair e Liam Wotherspoon. "Resilience and fragility of the telecommunication network to seismic events". Bulletin of the New Zealand Society for Earthquake Engineering 50, n. 2 (30 giugno 2017): 318–28. http://dx.doi.org/10.5459/bnzsee.50.2.318-328.

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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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4

Tang, Alex, Alexis Kwasinski, John Eidinger, Colin Foster e Pete Anderson. "Telecommunication Systems’ Performance: Christchurch Earthquakes". Earthquake Spectra 30, n. 1 (febbraio 2014): 231–52. http://dx.doi.org/10.1193/022213eqs046m.

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Telecommunication systems generally performed better than other lifelines in the Christchurch-area earthquake sequence of 2010–2011; however, various service interruptions were a major concern for subscribers. Power disruption was the primary reason for service interruption in Christchurch, as has been similarly observed in many other major earthquakes around the world. Extensive ground failures impacted underground cabling, while Central Offices (COs) sustained minor damage due to strong shaking. Closure of the Central Business District and increased call volumes created additional strain on telecommunication service providers to deal with emergency response. This paper presents the findings of the post-earthquake lifeline performance investigations of both the landline network and the cellular network. Voice and data services of these networks are examined and commented based on the findings. The authors’ view of rendering the telecommunication systems more resilient is presented ( Eidinger and Tang 2014 ).

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Rusan, Andrei, e Radu Vasiu. "IP Impairment Testing for Wireless Mobile Networks". Balkan Region Conference on Engineering and Business Education 2, n. 1 (20 dicembre 2017): 284–91. http://dx.doi.org/10.1515/cplbu-2017-0037.

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Abstract Wireless mobile telecommunications are of growing importance and an enabler for the Internet of Things. Most networks are IP based or moving to an IP based infrastructure, including the latest 4G LTE and the future 5G networks. Understanding and being able to predict the behavior and performance of such networks in various scenarios and conditions is critical. This drives the need to study IP impairments in wireless telecommunications networks and to assess their impact on network and service performance. One method is to emulate/generate IP impairments while observing and measuring their impact on network performance. In this paper the authors analyze the challenges associated with analyzing the behavior of mobile wireless networks. They discuss the importance and benefits of IP impairments testing and mention the high cost of dedicated IP impairment emulators for telecommunications. A flexible and affordable solution is proposed for educational purposes and the study of IP impairments on wireless telecommunication networks.

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Dong, Cheng Gen, Jin Pei Wu e Qi Shan Zhang. "One Reduction Method of Telecommunications Nework Events". Advanced Materials Research 301-303 (luglio 2011): 1166–71. http://dx.doi.org/10.4028/www.scientific.net/amr.301-303.1166.

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In this paper, the mass events of telecommunication network are researched, the none fault events reduction method and repeat events reduction method are proposed after researching the events of telecommunications network, on the basis of researching the characteristics of the events of telecommunications network, the improved methods were proposed. Further, in the aspect of event reduction performance, proposed the fingerprint algorithm, the events reduction process of inefficient much text comparison convert efficient integer value comparison, effectively improve the performance of the event reduction, meets real-time event handling performance requirements.

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7

V, Suma. "IMPROVED SOFTWARE-DEFINED NETWORK ROUTING FOR TELECOMMUNICATION NETWORKS". Journal of Ubiquitous Computing and Communication Technologies 01, n. 01 (3 settembre 2019): 1–12. http://dx.doi.org/10.36548/jucct.2019.1.001.

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The rapid advancements in the telecommunication networks, has led to the day by day progress in the data communication leading to the inclusion of many devices that causes complexities in managing and the maintaining of the networks. The outgrowing number of new network devices makes the traditional telecommunication networks incompatible to their flexible operation and the management. So the trending software defined networking can be opted for the provision of more convenient service providing a seamless communication, but the SDN’s lags in the self-adaptability and the efficient usage of the resources as it uses the concept of the traditional networks so the paper proposes an modified method of software defined networking based on the deep learning to enhance the performance, of the telecommunication networks. Further the evaluation of the telecommunication network routing with the improvised SDN, on the packet loss rate and the average delay shows that the proposed method is compatible for the seamless information provision of the nowadays telecommunication networks.

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A, Pasumponpandian, e Smys S. "DDOS ATTACK DETECTION IN TELECOMMUNICATION NETWORK USING MACHINE LEARNING". Journal of Ubiquitous Computing and Communication Technologies 01, n. 01 (21 settembre 2019): 33–44. http://dx.doi.org/10.36548/jucct.2019.1.004.

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The telecommunication network that is the assemblage of the terminal nodes enables the whole to be connected. The swift progress in the telecommunication networks and the information technology has enabled a seamless connection and the capacity to store and communicate vast scale of information in the form of text and voice that are sensitive. This makes the telecommunication networks prey to multiple cyber-threats of which the DDOS (distributed denial of service) are the more predominant type of the cyber-threat causing the denial of the services to the users. So the paper utilizing the combination of the neural network and the support vector machine presents the detection and the classification method for the DDOS attacks in the telecommunication network. The performance evaluation using the network simulator-2 enables to have the enhanced detection accuracy for the proposed method.

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Dementyev, Vladislav, Oleg Lauta, Vladimir Baranov e Aleksandr Maksimov. "The Approach to Assessing the System of Protocol Protection of Information and Telecommunication Networks". NBI Technologies, n. 4 (febbraio 2019): 12–15. http://dx.doi.org/10.15688/nbit.jvolsu.2018.4.2.

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In modern conditions, the number of impacts directly on the protocols of data exchange and information exchange is increasing. Of particular relevance is the ability of the information and telecommunications network to maintain performance targets at the required level, and its protection system to ensure the necessary effectiveness of counteraction. In this regard, it is of high importance to conduct research in this direction and to develop adequate approaches to the protection and evaluation of their effectiveness. The present article is devoted to this issue, an applies the approach to the evaluation of the developed system of protection against protocol effects on the information and telecommunication networks. The problem of calculating the criterion of efficiency can be solved by statistical modeling of the system of protocol protection of information and telecommunication networks. The calculated efficiency criterion is used to verify the compliance of the real system with the specified tactical and technical requirements or in the comparative evaluation of projects of different variants of the system of protocol protection of information and telecommunication networks.

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MUROOKA, TAKAHIRO, AKIRA NAGOYA, TOSHIAKI MIYAZAKI, HIROYUKI OCHI e YUKIHIRO NAKAMURA. "NETWORK PROCESSOR FOR HIGH-SPEED NETWORK AND QUICK PROGRAMMING". Journal of Circuits, Systems and Computers 16, n. 01 (febbraio 2007): 65–79. http://dx.doi.org/10.1142/s0218126607003502.

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The paper describes the concept, architecture, and prototype test results of a packet processor that enables us to implement an application-specific high-speed packet processing system without expert-level programming skills. This processor has a pipelined processing architecture and features coarse-grained instructions that are based on the data formats of the telecommunication packet. Using this processor, target applications can be implemented within a short working period without degrading the processing performance. We implemented a prototype system to evaluate its packet propagation delay and packet forwarding performance. The measured results suggest that the architecture is useful for packet processing on high-speed telecommunication networks.

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Tesi sul tema "Network performance (Telecommunication)"

1

Hoepner, Brian. "Methods of managing network user expectations". Menomonie, WI : University of Wisconsin--Stout, 2005. http://www.uwstout.edu/lib/thesis/2005/2005hoepnerb.pdf.

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Dheram, Meher Vinay. "Network performance evaluation and simulation studies on backbone traffic aggregation". Diss., Online access via UMI:, 2006.

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Carter, Steven Michael. "Implementation and analysis of the IP measurement protocol (IPMP)". Master's thesis, Mississippi State : Mississippi State University, 2001. http://library.msstate.edu/etd/show.asp?etd=etd-11152001-090121.

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Zhao, Qi. "Towards Ideal Network Traffic Measurement: A Statistical Algorithmic Approach". Diss., Atlanta, Ga. : Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19821.

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Thesis (Ph.D)--Computing, Georgia Institute of Technology, 2008.
Committee Chair: Xu, Jun; Committee Member: Ammar, Mostafa; Committee Member: Feamster, Nick; Committee Member: Ma, Xiaoli; Committee Member: Zegura, Ellen.

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Kumar, Abhishek. "Network Data Streaming: Algorithms for Network Measurement and Monitoring". Diss., Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-11172005-143837/.

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Thesis (Ph. D.)--Computing, Georgia Institute of Technology, 2006.
Dr. Mostafa Ammar, Committee Member ; Dr. Mark Crovella, Committee Member ; Dr. Constantinos Dovrolis, Committee Member ; Dr. Ellen Zegura, Committee Chair ; Dr. Jun Xu, Committee Chair. Vita. Includes bibliographical references.

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Albarrán, Munoz Isaac, e Ruiz De Azúa Manuel Parras. "Telecommunication Services’ Migration to the Cloud : Network Performance analysis". Thesis, KTH, Kommunikationssystem, CoS, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-93841.

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Nowadays, telecommunication services are commonly deployed in private networks, which are controlled and maintained by the telecommunication operators themselves, by co-location services providers, or, to some extent, by their hardware and software providers. However, with the present development of cloud computing resources, one might consider if these services could and should be implemented in the Cloud, thus taking advantage of cloud computing’s high availability, geographic distribution, and ease of usage. Additionally, this migration could reduce the telecommunication operators’ concerns in terms of hardware and network maintenance, leaving those to the Cloud computing providers who will need to supply a highly available and consistent service, to fulfill the telecommunication services’ requirements. Furthermore, virtualization provides the possibility of easily and rapidly changing the Cloud network topology facilitating the addition and removal of machines and services, allowing telecommunication services providers to adapt to their demands on the fly. The aim of this thesis project is to analyze and evaluate the level of performance, from the network point of view, that can be achieved when using Cloud computing resources to implement a telecommunication service, carrying out practical experiments both in laboratory and real environments. These measurements and analyses were conducted using an Ericsson prototype mobile switching center server (MSC-S) application, although the results obtained could be adapted to other applications with similar requirements. In order to potentially test this approach in a real environment, a prior providers’ survey was utilized to evaluate their services based on our requirements in terms of hardware and network characteristics, and thus select a suitable candidate environment for our purposes. One cloud provider was selected and its service was further evaluated based on the MSC-S application requirements. We report the results of our bench-marking process in this environment and compare them to the results of testing in a laboratory environment. The results of both sets of testing were well correlated and indicate potential for hosting telecommunication services in a Cloud environment, providing the Cloud meets the requirements imposed by the telecom services.
Actualmente, los servicios de telecomunicaciones se implementan comúnmente en redes privadas, controladas y mantenidas por los operadores de telecomunicaciones, por proveedores de servicios de colocación o, hasta cierto punto, por proveedores de hardware y software. Sin embargo, con el presente desarrollo de la tecnología de ’Cloud computing’, se puede considerar la posibilidad de implementar servicios de telecomunicaciones en la nube, aprovechando su alta disponibilidad, distribución geográfica y facilidad de uso. Además, este cambio puede reducir las preocupaciones de los operadores en relación al mantenimiento del hardware y de la red, delegando en los proveedores del servicio de ’Cloud computing’, los cuáles deberán proporcionar un servicio consistente, cumpliendo así con los requisitos de los servicios de telecomunicaciones. Por otra parte, la virtualización propociona la posibilidad de cambiar rápida y fácilmente la topología de la red, facilitando la adición y supresión de maquinas y servicios, y, por tanto, permitiendo a los operadores adaptarse a sus necesidades sobre la marcha. El objetivo de esta tésis es analizar y evaluar en nivel de rendimiento, desde el punto de vista de la red, que se puede conseguir usando recursos de ’Cloud computing’ para implementar un servicio de telecomunicaciones, llevando a cabo experimentos tanto en el laboratorio como en un entorno real. Estos análisis fueron realizados utilizando un prototipo de un servidor de conmutación móvil (MSC-S) de Ericsson, aunque los resultados pueden adaptarse a otras aplicaciones con unos requisitos similares. Para probar esta propuesta en un entorno real, se realizó una encuesta de proveedores de servicios de ’Cloud computing’, con el objetivo de evaluar sus servicios teniendo en cuenta nuestros requisitos de hardware y red. Finalmente, un proveedor fue escogido y su servicio evaluado basándonos en los requisitos de la aplicación MSC-S. En este documento proporcionamos los resultados de esa evaluación y los comparamos con los obtenidos en el laboratorio. Los resultados de ambas evaluaciones fueron satisfactorios e indican la posibilidad de implementar servicios de telecomunicaciones en la nube, siempre que la nube cumpla los requisitos impuestos por dichos servicios de telecomunicaciones.
Nuförtiden är telekommunikationstjänster ofta uppsatta i privata nätverk, som kontrolleras och underhålls av teleoperatörerna själva, av samlokaliserande tjänsteleverantörer eller i viss utsträckning av deras hårdvaruoch programvaru-leverantörer. Med den nuvarande utvecklingen av Cloud Computing-resurser kan man dock överväga om dessa tjänster kan och bör genomföras i ett Cloud, vilket drar fördel av Cloud Computings höga tillgänglighet, geografiska spridning, och enkla användning. Denna migration minskar även teleoperatörernas oro angående hårdvaru- och nätverks-underhåll genom att överlåta detta till Cloud Computing-leverantörerna, som kommer att behöva leverera en hög tillgänglighet och konsekvent service för att uppfylla telekommunikationstjänsternas krav. Dessutom ger virtualisering möjlighet att enkelt och snabbt ändra ett Clouds nätverkstopologi, vilket underlättar tillägg och borttagning av maskiner och tjänster, vilket hjälper teleoperatörer att snabbt anpassa sig till deras krav. Målet med examensarbetet är att analysera och uppskatta prestandan, från nätets perspektiv, som kan uppnås vid användning av Cloud Computingresurser för att genomföra en teletjänst, genom praktiska experiment både i laboratorium och i verkligheten. Dessa mätningar och analyser utfördes med en prototyp av en Ericsson mobilomkopplingscentralserverapplikation (MSCS), även om de erhållna resultaten skulle kunna anpassas till andra program med liknande krav. För att potentiellt kunna testa denna metod i en verklig miljö användes en tidigare leverantörs undersökning för att utvärdera deras tjänster baserat på våra krav på hårdvara och nätverksegenskaper, och genom detta välja en lämplig kandidatmiljö för våra syften. En Cloud-leverantör valdes och dess tjänster utvärderades vidare baserat på MSC-Ss applikationskrav. Vi redovisar resultatet av vår testprocess i den här miljön och jämför det med resultaten av tester i laboratoriemiljö. Resultaten från båda uppsättningarna av tester var väl korrelerade och visar på potentialen av att implementera telekommunikationstjänster i en Cloud-miljö, om detta Cloud uppfyller de kraven som ställs av telekommunikationtjänsterna.

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Kiss, Zoltan. "Predictive Mobility Management for future mobile telecommunication networks". Thesis, De Montfort University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391858.

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8

Saple, Avdhoot Kishore Yilmaz Levent. "Agent-based simulation of behavioral anticipation in computer networks a comparative study of anticipatory fault management /". Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Spring/master's/SAPLE_AVDHOOTKISHORE_37.pdf.

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Agarwal, Shweta S. "Search for an optimal network reporting threshold". Ohio : Ohio University, 2004. http://www.ohiolink.edu/etd/view.cgi?ohiou1091451063.

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Krithikaivasan, Balaji Medhi Deepankar. "Forecasting models and adaptive quantized bandwidth provisioning for nonstationary network traffic". Diss., UMK access, 2006.

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Abstract (sommario):

Thesis (Ph. D.)--School of Computing and Engineering. University of Missouri--Kansas City, 2006.
"A dissertation in computer networking and telecommunication networking." Advisor: Deep Medhi. Typescript. Vita. Title from "catalog record" of the print edition Description based on contents viewed Oct. 31, 2007. Includes bibliographical references (leaves 168-172). Online version of the print edition.

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Libri sul tema "Network performance (Telecommunication)"

1

Bonald, Thomas. Network performance analysis. Hoboken, NJ: John Wiley, 2011.

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Sholomon, Andy. Enterprise network testing. Indianapolis, IN: Cisco Press, 2011.

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Jean, Walrand, Bagchi Kallol K e Zobrist George W. 1934-, a cura di. Network performance modeling and simulation. [Australia]: Gordon and Breach Science Publishers, 1998.

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Kesidis, George. ATM Network Performance. Boston, MA: Springer US, 2000.

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Kesidis, George. ATM Network Performance. Boston, MA: Springer US, 1996.

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Dattatreya, G. R. Performance analysis of queuing and computer networks. Boca Raton: CRC Press/Taylor & Francis, 2008.

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Dattatreya, G. R. Performance analysis of queuing and computer networks. Boca Raton: Chapman & Hall/CRC, 2008.

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Kesidis, George. An introduction to communication network analysis. Hoboken, N.J: Wiley-Interscience, 2007.

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Held, Gilbert. Local area network performance: Issues and answers. Chichester: Wiley, 1994.

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C, Harper Alvin, e Buress Raymond V, a cura di. Mobile telephones: Networks, applications, and performance. New York: Nova Science Publishers, 2008.

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Capitoli di libri sul tema "Network performance (Telecommunication)"

1

Bohoris, C., A. Liotta e G. Pavlou. "Software Agent Constrained Mobility for Network Performance Monitoring". In Telecommunication Network Intelligence, 367–87. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/978-0-387-35522-1_21.

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Chan, Hung Nguyen, Judith Redoli Granados, Rafael Mompó Gómez e Belen Carro Martinez. "Flexible COM — based software solution for HFC Network Performance monitoring". In Telecommunication Network Intelligence, 555–68. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/978-0-387-35522-1_33.

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Chakka, Ram, e Tien Van Do. "Some New Markovian Models for Traffic and Performance Evaluation of Telecommunication Networks". In Network Performance Engineering, 642–64. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-02742-0_27.

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Bala, Indu, Danvir Mandal e Ankur Singhal. "Performance Enhancement of UAV-Based Cognitive Radio Network". In Micro-Electronics and Telecommunication Engineering, 97–105. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8721-1_10.

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Gupta, Abhishek, Devendra Kumar Sharma e D. N. Sahai. "A Survey of Network Protocols for Performance Enhancement in Wireless Sensor Networks". In Micro-Electronics and Telecommunication Engineering, 673–84. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-9562-2_56.

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Gupta, Bharat, Vasvi Bajaj, Rajat Bhusan Panda e Lalit Garg. "Improving the Performance of Video Content Genuineness Using Convolution Neural Network". In Micro-Electronics and Telecommunication Engineering, 601–10. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2329-8_61.

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Imtiaz, Shamoona, Oliver Popov e Jaume Riu. "AI-Based Automatic Detection of IP Network Performance in Telecommunication". In Industry 4.0 Key Technological Advances and Design Principles in Engineering, Education, Business, and Social Applications, 189–220. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781003343332-10.

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Ensor, J. Robert, Gianpaolo U. Carraro e John T. Edmark. "Visual techniques to accommodate varying network performance in virtual environments". In Interactive Distributed Multimedia Systems and Telecommunication Services, 41–46. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/bfb0055302.

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Atmaca, Tülin, Amira Kamli, Godlove Suila Kuaban e Tadeusz Czachórski. "Performance Evaluation of the Packet Aggregation Mechanism of an N-GREEN Metro Network Node". In Modelling, Analysis, and Simulation of Computer and Telecommunication Systems, 62–78. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-68110-4_4.

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Cook, G. J. "Network performance". In Telecommunication Networks, 387–400. Institution of Engineering and Technology, 1997. http://dx.doi.org/10.1049/pbte036e_ch17.

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Atti di convegni sul tema "Network performance (Telecommunication)"

1

Globa, L. S., e E. A. Iermakova. "Parallel algorithms performance tools in network environment". In Telecommunication Technology" (CriMiCo 2008). IEEE, 2008. http://dx.doi.org/10.1109/crmico.2008.4676425.

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Zhang, Shaoyan, Rui Zhang e Jianmin Jiang. "A Performance Management System for Telecommunication Network Using AI Techniques". In 2008 Third International Conference on Dependability of Computer Systems DepCoS-RELCOMEX. IEEE, 2008. http://dx.doi.org/10.1109/depcos-relcomex.2008.32.

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3

Gao, Shengkui. "Performance of Inter-Domain Routing Protocol in Aeronautical Telecommunication Network". In 2008 4th International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM). IEEE, 2008. http://dx.doi.org/10.1109/wicom.2008.1001.

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Yunus, Nur Arzilawati Md, e Mohamed Othman. "Reliability performance of shuffle exchange omega network". In 2012 International Symposium on Telecommunication Technologies (ISTT). IEEE, 2012. http://dx.doi.org/10.1109/istt.2012.6481558.

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Yusof, Husni Azam, Aminuddin Musa, Ahmad Qisti Ramli e Mohd Iqbal Ridwan. "Teleprotection simulation lab: Understanding the performance of telecommunication aided protection systems under impaired telecommunication network conditions". In 2012 IEEE International Conference on Power and Energy (PECon). IEEE, 2012. http://dx.doi.org/10.1109/pecon.2012.6450295.

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6

Nascimento, Arlen, Saulo Queiroz, Leandro Galvao, Edjair Mota e Edson Nascimento. "Influence of Propagation Modeling on VoIP Quality Performance in Wireless Mesh Network Simulation". In Telecommunication Systems (MASCOTS). IEEE, 2008. http://dx.doi.org/10.1109/mascot.2008.4770590.

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7

Christine, Michelle, Akhmad Hambali e Kris Sujatmoko. "Performance Analysis of Radio over Fiber Network for Indoor Telecommunication Application". In 2019 IEEE Asia Pacific Conference on Wireless and Mobile (APWiMob). IEEE, 2019. http://dx.doi.org/10.1109/apwimob48441.2019.8964186.

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8

Tiwari, P. S. "Predictive performance evaluation of interconnected power system through telecommunication network management". In IET-UK International Conference on Information and Communication Technology in Electrical Sciences (ICTES 2007). IEE, 2007. http://dx.doi.org/10.1049/ic:20070578.

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9

Ismayılov, Togrul. "Research of Future Generation Multiservice Telecommunication Networks Based on SDN Technology". In 2nd International Scientific-Practical Conference "Machine Building and Energy: New Concepts and Technologies". Switzerland: Trans Tech Publications Ltd, 2024. http://dx.doi.org/10.4028/p-gvd2zo.

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Abstract (sommario):

This paper analyzes the performance indicators multiservice telecommunication networks based on the future network architectural concept using end-to-end digital technologies. Based on the study, a new approach to constructing a mathematical model of the efficiency of an SDN network is proposed. Based on the model, analytical expressions were obtained to evaluate the performance switches and controllers of the software defined networking network using the OpenFlow protocols.

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10

"PERFORMANCE EVALUATION OF 3G CORE NETWORK NODES". In 2nd International Conference on E-business and Telecommunication Networks. SciTePress - Science and and Technology Publications, 2005. http://dx.doi.org/10.5220/0001415600980104.

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Rapporti di organizzazioni sul tema "Network performance (Telecommunication)"

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Bray, Jonathan, Ross Boulanger, Misko Cubrinovski, Kohji Tokimatsu, Steven Kramer, Thomas O'Rourke, Ellen Rathje, Russell Green, Peter Robertson e Christine Beyzaei. U.S.—New Zealand— Japan International Workshop, Liquefaction-Induced Ground Movement Effects, University of California, Berkeley, California, 2-4 November 2016. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, marzo 2017. http://dx.doi.org/10.55461/gzzx9906.

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There is much to learn from the recent New Zealand and Japan earthquakes. These earthquakes produced differing levels of liquefaction-induced ground movements that damaged buildings, bridges, and buried utilities. Along with the often spectacular observations of infrastructure damage, there were many cases where well-built facilities located in areas of liquefaction-induced ground failure were not damaged. Researchers are working on characterizing and learning from these observations of both poor and good performance. The “Liquefaction-Induced Ground Movements Effects” workshop provided an opportunity to take advantage of recent research investments following these earthquake events to develop a path forward for an integrated understanding of how infrastructure performs with various levels of liquefaction. Fifty-five researchers in the field, two-thirds from the U.S. and one-third from New Zealand and Japan, convened in Berkeley, California, in November 2016. The objective of the workshop was to identify research thrusts offering the greatest potential for advancing our capabilities for understanding, evaluating, and mitigating the effects of liquefaction-induced ground movements on structures and lifelines. The workshop also advanced the development of younger researchers by identifying promising research opportunities and approaches, and promoting future collaborations among participants. During the workshop, participants identified five cross-cutting research priorities that need to be addressed to advance our scientific understanding of and engineering procedures for soil liquefaction effects during earthquakes. Accordingly, this report was organized to address five research themes: (1) case history data; (2) integrated site characterization; (3) numerical analysis; (4) challenging soils; and (5) effects and mitigation of liquefaction in the built environment and communities. These research themes provide an integrated approach toward transformative advances in addressing liquefaction hazards worldwide. The archival documentation of liquefaction case history datasets in electronic data repositories for use by the broader research community is critical to accelerating advances in liquefaction research. Many of the available liquefaction case history datasets are not fully documented, published, or shared. Developing and sharing well-documented liquefaction datasets reflect significant research efforts. Therefore, datasets should be published with a permanent DOI, with appropriate citation language for proper acknowledgment in publications that use the data. Integrated site characterization procedures that incorporate qualitative geologic information about the soil deposits at a site and the quantitative information from in situ and laboratory engineering tests of these soils are essential for quantifying and minimizing the uncertainties associated site characterization. Such information is vitally important to help identify potential failure modes and guide in situ testing. At the site scale, one potential way to do this is to use proxies for depositional environments. At the fabric and microstructure scale, the use of multiple in situ tests that induce different levels of strain should be used to characterize soil properties. The development of new in situ testing tools and methods that are more sensitive to soil fabric and microstructure should be continued. The development of robust, validated analytical procedures for evaluating the effects of liquefaction on civil infrastructure persists as a critical research topic. Robust validated analytical procedures would translate into more reliable evaluations of critical civil infrastructure iv performance, support the development of mechanics-based, practice-oriented engineering models, help eliminate suspected biases in our current engineering practices, and facilitate greater integration with structural, hydraulic, and wind engineering analysis capabilities for addressing multi-hazard problems. Effective collaboration across countries and disciplines is essential for developing analytical procedures that are robust across the full spectrum of geologic, infrastructure, and natural hazard loading conditions encountered in practice There are soils that are challenging to characterize, to model, and to evaluate, because their responses differ significantly from those of clean sands: they cannot be sampled and tested effectively using existing procedures, their properties cannot be estimated confidently using existing in situ testing methods, or constitutive models to describe their responses have not yet been developed or validated. Challenging soils include but are not limited to: interbedded soil deposits, intermediate (silty) soils, mine tailings, gravelly soils, crushable soils, aged soils, and cemented soils. New field and laboratory test procedures are required to characterize the responses of these materials to earthquake loadings, physical experiments are required to explore mechanisms, and new soil constitutive models tailored to describe the behavior of such soils are required. Well-documented case histories involving challenging soils where both the poor and good performance of engineered systems are documented are also of high priority. Characterizing and mitigating the effects of liquefaction on the built environment requires understanding its components and interactions as a system, including residential housing, commercial and industrial buildings, public buildings and facilities, and spatially distributed infrastructure, such as electric power, gas and liquid fuel, telecommunication, transportation, water supply, wastewater conveyance/treatment, and flood protection systems. Research to improve the characterization and mitigation of liquefaction effects on the built environment is essential for achieving resiliency. For example, the complex mechanisms of ground deformation caused by liquefaction and building response need to be clarified and the potential bias and dispersion in practice-oriented procedures for quantifying building response to liquefaction need to be quantified. Component-focused and system-performance research on lifeline response to liquefaction is required. Research on component behavior can be advanced by numerical simulations in combination with centrifuge and large-scale soil–structure interaction testing. System response requires advanced network analysis that accounts for the propagation of uncertainty in assessing the effects of liquefaction on large, geographically distributed systems. Lastly, research on liquefaction mitigation strategies, including aspects of ground improvement, structural modification, system health monitoring, and rapid recovery planning, is needed to identify the most effective, cost-efficient, and sustainable measures to improve the response and resiliency of the built environment.

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African Open Science Platform Part 1: Landscape Study. Academy of Science of South Africa (ASSAf), 2019. http://dx.doi.org/10.17159/assaf.2019/0047.

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This report maps the African landscape of Open Science – with a focus on Open Data as a sub-set of Open Science. Data to inform the landscape study were collected through a variety of methods, including surveys, desk research, engagement with a community of practice, networking with stakeholders, participation in conferences, case study presentations, and workshops hosted. Although the majority of African countries (35 of 54) demonstrates commitment to science through its investment in research and development (R&D), academies of science, ministries of science and technology, policies, recognition of research, and participation in the Science Granting Councils Initiative (SGCI), the following countries demonstrate the highest commitment and political willingness to invest in science: Botswana, Ethiopia, Kenya, Senegal, South Africa, Tanzania, and Uganda. In addition to existing policies in Science, Technology and Innovation (STI), the following countries have made progress towards Open Data policies: Botswana, Kenya, Madagascar, Mauritius, South Africa and Uganda. Only two African countries (Kenya and South Africa) at this stage contribute 0.8% of its GDP (Gross Domestic Product) to R&D (Research and Development), which is the closest to the AU’s (African Union’s) suggested 1%. Countries such as Lesotho and Madagascar ranked as 0%, while the R&D expenditure for 24 African countries is unknown. In addition to this, science globally has become fully dependent on stable ICT (Information and Communication Technologies) infrastructure, which includes connectivity/bandwidth, high performance computing facilities and data services. This is especially applicable since countries globally are finding themselves in the midst of the 4th Industrial Revolution (4IR), which is not only “about” data, but which “is” data. According to an article1 by Alan Marcus (2015) (Senior Director, Head of Information Technology and Telecommunications Industries, World Economic Forum), “At its core, data represents a post-industrial opportunity. Its uses have unprecedented complexity, velocity and global reach. As digital communications become ubiquitous, data will rule in a world where nearly everyone and everything is connected in real time. That will require a highly reliable, secure and available infrastructure at its core, and innovation at the edge.” Every industry is affected as part of this revolution – also science. An important component of the digital transformation is “trust” – people must be able to trust that governments and all other industries (including the science sector), adequately handle and protect their data. This requires accountability on a global level, and digital industries must embrace the change and go for a higher standard of protection. “This will reassure consumers and citizens, benefitting the whole digital economy”, says Marcus. A stable and secure information and communication technologies (ICT) infrastructure – currently provided by the National Research and Education Networks (NRENs) – is key to advance collaboration in science. The AfricaConnect2 project (AfricaConnect (2012–2014) and AfricaConnect2 (2016–2018)) through establishing connectivity between National Research and Education Networks (NRENs), is planning to roll out AfricaConnect3 by the end of 2019. The concern however is that selected African governments (with the exception of a few countries such as South Africa, Mozambique, Ethiopia and others) have low awareness of the impact the Internet has today on all societal levels, how much ICT (and the 4th Industrial Revolution) have affected research, and the added value an NREN can bring to higher education and research in addressing the respective needs, which is far more complex than simply providing connectivity. Apart from more commitment and investment in R&D, African governments – to become and remain part of the 4th Industrial Revolution – have no option other than to acknowledge and commit to the role NRENs play in advancing science towards addressing the SDG (Sustainable Development Goals). For successful collaboration and direction, it is fundamental that policies within one country are aligned with one another. Alignment on continental level is crucial for the future Pan-African African Open Science Platform to be successful. Both the HIPSSA ((Harmonization of ICT Policies in Sub-Saharan Africa)3 project and WATRA (the West Africa Telecommunications Regulators Assembly)4, have made progress towards the regulation of the telecom sector, and in particular of bottlenecks which curb the development of competition among ISPs. A study under HIPSSA identified potential bottlenecks in access at an affordable price to the international capacity of submarine cables and suggested means and tools used by regulators to remedy them. Work on the recommended measures and making them operational continues in collaboration with WATRA. In addition to sufficient bandwidth and connectivity, high-performance computing facilities and services in support of data sharing are also required. The South African National Integrated Cyberinfrastructure System5 (NICIS) has made great progress in planning and setting up a cyberinfrastructure ecosystem in support of collaborative science and data sharing. The regional Southern African Development Community6 (SADC) Cyber-infrastructure Framework provides a valuable roadmap towards high-speed Internet, developing human capacity and skills in ICT technologies, high- performance computing and more. The following countries have been identified as having high-performance computing facilities, some as a result of the Square Kilometre Array7 (SKA) partnership: Botswana, Ghana, Kenya, Madagascar, Mozambique, Mauritius, Namibia, South Africa, Tunisia, and Zambia. More and more NRENs – especially the Level 6 NRENs 8 (Algeria, Egypt, Kenya, South Africa, and recently Zambia) – are exploring offering additional services; also in support of data sharing and transfer. The following NRENs already allow for running data-intensive applications and sharing of high-end computing assets, bio-modelling and computation on high-performance/ supercomputers: KENET (Kenya), TENET (South Africa), RENU (Uganda), ZAMREN (Zambia), EUN (Egypt) and ARN (Algeria). Fifteen higher education training institutions from eight African countries (Botswana, Benin, Kenya, Nigeria, Rwanda, South Africa, Sudan, and Tanzania) have been identified as offering formal courses on data science. In addition to formal degrees, a number of international short courses have been developed and free international online courses are also available as an option to build capacity and integrate as part of curricula. The small number of higher education or research intensive institutions offering data science is however insufficient, and there is a desperate need for more training in data science. The CODATA-RDA Schools of Research Data Science aim at addressing the continental need for foundational data skills across all disciplines, along with training conducted by The Carpentries 9 programme (specifically Data Carpentry 10 ). Thus far, CODATA-RDA schools in collaboration with AOSP, integrating content from Data Carpentry, were presented in Rwanda (in 2018), and during17-29 June 2019, in Ethiopia. Awareness regarding Open Science (including Open Data) is evident through the 12 Open Science-related Open Access/Open Data/Open Science declarations and agreements endorsed or signed by African governments; 200 Open Access journals from Africa registered on the Directory of Open Access Journals (DOAJ); 174 Open Access institutional research repositories registered on openDOAR (Directory of Open Access Repositories); 33 Open Access/Open Science policies registered on ROARMAP (Registry of Open Access Repository Mandates and Policies); 24 data repositories registered with the Registry of Data Repositories (re3data.org) (although the pilot project identified 66 research data repositories); and one data repository assigned the CoreTrustSeal. Although this is a start, far more needs to be done to align African data curation and research practices with global standards. Funding to conduct research remains a challenge. African researchers mostly fund their own research, and there are little incentives for them to make their research and accompanying data sets openly accessible. Funding and peer recognition, along with an enabling research environment conducive for research, are regarded as major incentives. The landscape report concludes with a number of concerns towards sharing research data openly, as well as challenges in terms of Open Data policy, ICT infrastructure supportive of data sharing, capacity building, lack of skills, and the need for incentives. Although great progress has been made in terms of Open Science and Open Data practices, more awareness needs to be created and further advocacy efforts are required for buy-in from African governments. A federated African Open Science Platform (AOSP) will not only encourage more collaboration among researchers in addressing the SDGs, but it will also benefit the many stakeholders identified as part of the pilot phase. The time is now, for governments in Africa, to acknowledge the important role of science in general, but specifically Open Science and Open Data, through developing and aligning the relevant policies, investing in an ICT infrastructure conducive for data sharing through committing funding to making NRENs financially sustainable, incentivising open research practices by scientists, and creating opportunities for more scientists and stakeholders across all disciplines to be trained in data management.

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