Mobile Communication System
Mostrando 25-36 de 54 artigos, teses e dissertações.
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25. Application of artificial intelligence techniques for dynamic channel allocation on wireless networks. / Aplicação de técnicas de inteligência artificial na alocação dinâmica de canais em redes sem fio.
In the last years, mobile networks became more important for communication systems infrastructure. One area of great growth is mobile computation, which is performed through radio signals. The amount of available channels rarely is enough to attend the increasing demand. This work presents a solution for the channel allocation topic, a challenging topic in
Publicado em: 2006
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26. Estudo, Análise e Proposta de Arquitetura de Integração de Sistemas Heterogêneos em Redes de Larga Escala com Adaptação de uma Plataforma de Suporte a Agentes Móveis (FT-SALE/SMAM) / Study, analysis and proposal of an architecture of integration of heterogeneous systems in nets of wide scale with adaptation of a support platform the mobile agents (FT-Sale/Smam)
A Virtual Enterprise is a temporary alliance of enterprises that come together to share skills or core competencies and resources in order to better respond to business opportunities, and whose cooperation is supported by computer networks. In this dissertation, it is presented an integration proposal of two platforms that work in the context of Virtual Ente
Publicado em: 2006
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27. Analysis of optical CDMA systems / Análise de sistemas CDMA ópticos
The evolution of optical networks verified in the last few years has been characterized by the search for better bandwidth utilization efficiency. The successful implementation of practical code division for multiple access techniques (CDMA) in mobile communications systems has stimulated new investigations on this topic, particularly in the optical domain (
Publicado em: 2006
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28. Avaliação dos modelos de predição de propagação para telefonia móvel celular na cidade do Natal
The development of wireless telecommunication in the last years has been great. It has been taking academics to conceive new ideas and techniques. Their aims are to increase the capacity and the quality of the systems services. Cells that are smaller every time, frequencies that are every time higher and environments that get more and more complex, all those
Publicado em: 2006
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29. Impactos emocionais causados pela mudança de estilo de gestão em um hospital na cidade de São Luis-MA
The objective of this study is to identify how a health institution can minimize the emotional impacts caused by the change of a style of classic management for a participative administration, that the workers and controllers can see the institution as a dynamic organization, that must be faced as an alive system, mobile and adaptable, where they is beings t
Publicado em: 2006
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30. Uma Plataforma de controle, monitoramento e avaliação de desempenho em sistemas de comunicações móveis utilizando alocação dinâmica e inteligente de canais / A controling, monitoring and performance evaluation platform for communication mobile system using dynamic and intelligent allocation channels
A telefonia celular atual está convergindo para uma integração dos serviços de voz e dados que deverão ser fornecidos com diferentes perfis de qualidade de serviço. Alguns desses serviços são mais sensíveis ao atraso que outros; o que torna necessário a priorização de alguns sem, contudo, degradar a distribuição dos demais. Devido à complexida
Publicado em: 2006
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31. Teoria dos jogos aplicada ao controle de potÃncia e à equalizaÃÃo adaptativa em sistemas de comunicaÃÃo mÃvel / Game theory applid to the control of power control and the adaptive equalization in systems of mobile communication
A teoria dos jogos à um ramo da matemÃtica dedicado à anÃlise das interaÃÃes entre elementos concorrentes, que se encontram em situaÃÃo de conflito, e à formulaÃÃo de estratÃgias de decisÃo. O potencial de aplicaÃÃo desta teoria em sistema de comunicaÃÃo mÃvel à considerado, jà que em alguns dos problemas podem ser identificados elementos
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/10/2005
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32. Communication mapping in multiprocessor platforms
The advances in the technology for the fabrication of integrated circuits has allowed the implementation of entire systems on a single chip, combining high processing and low power consumption into a small component. The so called Multiprocessor System-on-Chip (MPSoCs) include multiple heterogeneous processor, complex interconnection structures and third par
Publicado em: 2005
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33. Selection algorithm of spreading sequences for CDMA systems with space-time coding and antenna array / Algoritmo de escolha de sequencias de espalhamento em sistemas CDMA com codificação espaço-temporal e arranjo de antenas
The performance of mobile communication systems based on the CDMA technique is limited by interference. In this thesis, we propose a selection algorithm of spreading sequences with fixed length for interference mitigation on CDMA systems over frequency-selective fading channels, that is based on the minimization of the overall mean bit error probability of t
Publicado em: 2005
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34. Implementação de sistema para governo eletronico com interfaces para comunicações moveis / System implementation for electronic government with interfaces to mobile communications
Neste trabalho realizamos uma contribuição ao tópico governo eletrônico. Foi desenvolvido um sistema de controle municipal de dados utilizando o sistema de cadastro de domicílios e moradores de uma cidade, disponibilizado pelo Sistema Único de Saúde do governo federal brasileiro. Este sistema permite a coleta de dados de forma digital através de tele
Publicado em: 2005
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35. Sistema de apoio a publicação e edição de conteúdo web para diversos dispositivos utilizando padrões
Nowadays, it is difficult not to hear comments about the Internet. It represents a means of communication, interactivity, research, and learning which has brought civilizations together for a variety of goals. One of the main goals of the Internet is to disseminate information, concerning either products, services, news, or any other kind of information. For
Publicado em: 2005
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36. Sistema de apoio a publicação e edição de conteúdo web para diversos dispositivos utilizando padrões
Nowadays, it is difficult not to hear comments about the Internet. It represents a means of communication, interactivity, research, and learning which has brought civilizations together for a variety of goals. One of the main goals of the Internet is to disseminate information, concerning either products, services, news, or any other kind of information. For
Publicado em: 2005