Telecommunications Network
Mostrando 1-12 de 66 artigos, teses e dissertações.
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1. Efficiency of electricity distribution companies
Abstract Purpose After assessing papers on efficiency, most of the studies available are focused on the analysis of efficiency measures, without providing a deep discussion of the factors that determine efficiency. This study aims to evaluate the efficiency of Brazilian electricity distribution companies based on a structural model that enables the identifi
RAUSP Manag. J.. Publicado em: 2020-06
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2. A compatibilidade da prática de zero-rating com a previsão de neutralidade de rede
Resumo Este artigo aborda a definição do conceito jurídico de neutralidade de rede conferida pela legislação brasileira, conforme interpretação dada ao art. 9º do Marco Civil da Internet, pela qual a neutralidade de rede refere-se ao tratamento isonômico dos pacotes de dados que transitam na rede, de modo a resguardar seu caráter aberto. A partir d
Rev. direito GV. Publicado em: 05/08/2019
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3. High-Altitude Platforms — Present Situation and Technology Trends
ABSTRACT High-altitude platforms (HAPs) are aircraft, usually unmanned airships or airplanes positioned above 20 km, in the stratosphere, in order to compose a telecommunications network or perform remote sensing. In the 1990 and 2000 decades, several projects were launched, but very few had continued. In 2014, 2 major Internet companies (Google and Facebook
J. Aerosp. Technol. Manag.. Publicado em: 2016-09
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4. Reliable Energy-Efficient Multilayer Mechanism with Realistic Battery Model and QoE Support in Wireless MANETs
Abstract Evolution in the telecommunications networks and the rapid advances made in wireless mobile communication networks, have taken computer networks to a new communication level. They now provide support for new mobile multimedia applications and are thus fostering the development of new network types and configurations. MANET is an important configurat
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2016-03
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5. Optimal design of an IP/MPLS over DWDM network
Different approaches for deploying resilient optical networks of low cost constitute a traditional group of NP-Hard problems that have been widely studied. Most of them are based on the construction of low cost networks that fulfill connectivity constraints. However, recent trends to virtualize optical networks over the legacy fiber infrastructure, modified
Pesqui. Oper.. Publicado em: 2014-04
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6. Optical cryptography through analog control of amplitude and delay of spectral slices: anlysis for NRZ and DQPSK signals. / Criptografia Ãptica mediante controle analÃgico da amplitude e do atraso de fatias espectrais: anÃlise para sinais NRZ e DQPSK.
This work investigates a technique to encrypt the optical signal for Transparent Optical Network, TON, in order to safeguard the confidentiality and guarantee the security of informations that are transmitted through the Telecommunications Network. The technique is assessed on the physical layer of the reference model for open systems interconnection, OSI, a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/11/2012
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7. O local no global : a municipalização do licenciamento ambiental em Porto Alegre e o regramento construído para a implantação das redes de telecomunicações
A dissertação trata da construção da municipalização do licenciamento ambiental de Porto Alegre, realizado no âmbito da ampliação das formas de participação na cidade, conhecida como democracia participativa. A questão que a pesquisa enfrentou é se a hierarquia dos processos de globalização em relação aos governos municipais (global/local) l
Publicado em: 2011
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8. Uma proposta de Framework para simulação de redes OTN
New Technologies for optical networks present a significant challenge for researchers involved with the new generation of high-performance networking, especially when we are talking about optimizing the current infrastructure available in the optical fiber backbones. In this context the computer simulations present themselves as flexible alternatives for the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/10/2010
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9. Parallel evolutionary algorithm to the sonet/sdh ring assigment problem / Algoritmo evolutivo paralelo para o problema de atribuição de localidades a anéis em redes sonet/sdh
The telecommunications play a fundamental role in the contemporary society, having as one of its main roles to give people the possibility to connect them and integrate them into society in which they operate and, therewith, accelerate development through knowledge. But as new technologies are introduced on the market, increases the demand for new products a
Publicado em: 2010
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10. COVERAGE AND CAPACITY PLANNING OF LTE BROADBAND ACCESS NETWORKS / PLANEJAMENTO DE COBERTURA E CAPACIDADE DE REDES DE ACESSO EM BANDA LARGA COM TECNOLOGIA LTE
At the moment, the cellular networks are being used as an option to provide broadband services in places that have not yet been covered by the fixed networks, mainly in underdeveloped countries like Brazil. The employed technologies now in Brazil, GSM (Global System is Mobile) and UMTS (Mobile Universal Telecommunications System), they were not developed to
Publicado em: 2010
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11. Simulador eletromagnético em um ambiente de grades computacionais / Eletromagnetic simulator in a grid computing environment
The aim of this work is to develop the Pre and Post-Processing stages from an electromagnetic simulation suite, called SSAR-BR, and also a grid computational environment, which permits the execution of large electromagnetic problems. The processing stage, based in the Finite Difference Time Domain (FDTD) method, has been already developed as part of a doctor
Publicado em: 2010
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12. Proposta de uma arquitetura para o fornecimento de serviços móveis em redes convergentes heterogêneas com foco no usuário. / Proposal of architecture to supply mobile services at heterogeneous convergent network with focus on user.
Devido às redes convergentes, os usuários dos produtos de telecomunicações passaram a ter disponíveis serviços mais completos, desde a simples possibilidade de escolha da tecnologia de acesso para os serviços de dados, passando por serviços com conteúdo multimídia com qualidade assegurada e usando diferentes tecnologias de acesso, entretanto este n
Publicado em: 2010