Encontrados 5 documentos, a visualizar página 1 de 1
Supporting Multimedia Services in the Future Network with QoS-routing
Alexandre, Leandro; Neto, Augusto; Cerqueira, Eduardo; Figueiredo, Sergio; Aguiar, RuiThe increasing demand for real-time multimedia applications for groups of users, together with the need for assuring high quality support for end-to-end content distribution is motivating the scientific community and industry to develop novel control, management and optimization mechanisms with Quality of Service (QoS) and Quality of Experience (QoE) support. In this context, this paper introduces Q-OSys (QoS-r...
Mobility management for multi-user sessions in next generation wireless systems
Cerqueira, Eduardo; Veloso, Luis; Neto, Augusto; Curado, Marilia; Monteiro, Edmundo; Mendes, PauloMobility management and ubiquitous access for real-time multi-user sessions with Quality of Service (QoS) support are major requirements to the success of next generation wireless systems. In this context, Multi-User Session Control (MUSC) is proposed to allow fixed and mobile users to access multi-user sessions ubiquitously, while providing QoS mapping, QoS adaptation and connectivity control in heterogeneous ...
QoS Support for Multi-user Sessions in IP-based Next Generation Networks
Cerqueira, Eduardo; Veloso, Luis; Neto, Augusto; Curado, Marilia; Monteiro, Edmundo; Mendes, PauloAbstract A combined control of multimedia quality level, mobility and allocation of network resources is essential for the success of next generation mobile networks. In this context, this article presents the Multi-user Session Control (MUSC) solution to control the quality level of multimedia sessions shared by multiple-users, providing Quality of Service (QoS) mapping and QoS adaptation for those sessions o...
Redes neurais e suas aplicações em calibração multivariada
Cerqueira,Eduardo O. de; Andrade,João C. de; Poppi,Ronei J.; Mello,CesarNeural Networks are a set of mathematical methods and computer programs designed to simulate the information process and the knowledge acquisition of the human brain. In last years its application in chemistry is increasing significantly, due the special characteristics for model complex systems. The basic principles of two types of neural networks, the multi-layer perceptrons and radial basis functions, are in...
Utilização de filtro de transformada de fourier para a minimização de ruídos em...
Cerqueira,Eduardo O.; Poppi,Ronei J.; Kubota,Lauro T.; Mello,CesarInstrumental data always present some noise. The analytical data information and instrumental noise generally has different frequencies. Thus is possible to remove the noise using a digital filter based on Fourier transform and inverse Fourier transform. This procedure enhance the signal/noise ratio and consecutively increase the detection limits on instrumental analysis. The basic principle of Fourier transfor...
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