Testbed
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. Experimental-based subsystem models for simulation of heterogeneous optical networks
This work presents and analyzes experimental-based subsystem models for Erbium doped fiber amplifiers (EDFAs) and wavelength selective switches (WSSs) under operation in a metropolitan optical network testbed. Firstly, the performance of the EDFAs and two gain control types are analyzed in a heterogeneous experimental setup with lightpaths modulated at 10G/1
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2014-12
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2. A study of convective flux schemes for aerospace flows
This paper presents the effects of some convective flux computation schemes on boundary layer and shocked flow solutions. Second-order accurate centered and upwind convective flux computation schemes are discussed. The centered Jameson scheme, plus explicitly added artificial dissipation terms are considered. Three artificial dissipation models, namely a sca
J. Braz. Soc. Mech. Sci. & Eng.. Publicado em: 2012-09
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3. Gerenciamento de handovers em next generation networks com agregação de contexto / Handovers management with context aggregation in next generation networks
In the NGN (Next Generation Networks) users can connect their Internet devices to different network technologies. In addition to a seamless communication, users desire new and personalized services. In this sense, this thesis exploits the context-aware information in NGN environments. The main propose is to capture the context information about the time invo
Publicado em: 2009
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4. 3D routing with context awareness
The emergence of low-cost, wireless network interfaces in the market and the ever increasing growth in demand of mobile devices (such as SmartPhones, PDAs, Internet Tablets and Laptops) enabled scenarios where network services for mobile users may exist in an ad hoc fashion, with no pre-existing communications infrastructure. However, the creation of such dy
Publicado em: 2009
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5. RTSCup: testbed for multiagent systems evaluation
The evaluation of any computational system is an important phase of its development process and this is not different to systems that use Artificial Intelligence (AI). For such systems, in particular, there is a trend in employing simulation environments as testbeds, which enable the evaluation of such systems in different test scenarios. The area of interes
Publicado em: 2008
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6. Métrica para análise da qualidade de vídeo transmitido em redes sem fio / Metrics to analyze the quality of videos transmitted through wireless networks
The goal of this work is to propose a metric to analyze the quality of videos transmitted through wireless networks. A wireless network is a degenerative means to transmit data given its huge instability, which affects transmitted videos. The present proposal adds a technical network parameter, known as jitter, to clients opinion. For these studies a video w
Publicado em: 2008
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7. Modelagem e identificação de parâmetros hidrodinâmicos de um veículo robótico submarino. / Modelling and Identification of hydrodynamic parameters of an underwater robotic vehicle.
In this work, a procedure for experimental identification of hydrodynamic coefficients of unmanned underwater vehicles is presented. At first, the development of a testbed for research on dynamics, control, and navigation of underwater vehicles is presented. This experimental platform includes: 1) a open-frame semi-autonomous unmanned underwater vehicle name
Publicado em: 2008
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8. Qualidade de serviço em redes IP serviços diferenciados
Este trabalho tem como finalidade apresentar uma visão geral dos assuntos relacionados à definição, configuração e gerenciamento dos serviços habilitados pela arquitetura de Serviços Diferenciados em relação à priorização de tráfego. Nele, descrevemos as necessidades por QoS nas redes atuais e futuras, bem como o direcionamento da Internet 2 em
Publicado em: 2007
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9. UM PROTOCOLO PARA DESCOBERTA E SELEÇÃO DE RECURSOS EM GRADES MÓVEIS AD HOC / A PROTOCOL FOR RESOURCE DISCOVERY AND SELECTION IN MOBILE AD HOC GRIDS
In the last few years, the use of mobile devices in computational grids has seen a growing interest. Nevertheless, a more challenging issue, the dynamic establishment of mobile grids on wireless ad hoc networks, has been so far only partially addressed. The first contribution of this thesis is the proposal of a software architecture for mobile grids that can
Publicado em: 2007
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10. Design of a didactic ande experimental testbed of low cost for applications in active control of vibration / Desenvolvimento de bancada didatico-experimental de baixo custo para aplicações em controle ativo de vibrações
Este trabalho apresenta uma bancada didática destinada ao ensino nos cursos de engenharia de aplicações em projetos de controle, processamento digital de sinais e programação em tempo real. Bancadas didáticas são ferramentas indispensáveis ao ensino, considerando que os conceitos vistos apenas em sala de aula são muitas vezes abstratos. A bancada em
Publicado em: 2006
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11. Arquitetura e prototipação de uma UNI optica para a rede GIGA / Architecture and prototype of an optical UNI for the GIGA network
The main interests of the GIGA Project are the deployment of Optical Network Technology, Network Services and Applications, Experimental Telecommunication Services and Scientific Applications. In the context of this Project, our research group has been working on the design of an IP/WDMControl Plane to integrate the IP/MPLS Client Network with the Optical Tr
Publicado em: 2006
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12. Tecnologias Diffserv como suporte para a Qualidade de Serviço (QOS) de aplicações multimídia: aspectos de configuração e integração
Com o surgimento de novas aplicações multimídia em redes TCP/IP, surgiu a necessidade das redes IP suportarem requisitos diferenciados de qualidade de serviço (QoS) visando o funcionamento adequado dessas aplicações. A arquitetura DiffServ (Arquitetura de Serviços Diferenciados) surgiu para atender aos requisitos de QoS das aplicações multimídia, g
Publicado em: 2006