Radio Resources Management
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Planejamento e gerenciamento de recursos para redes IEEE 802.16 baseadas em rádio sobre fibra / Resource planning and management for IEEE 802.16 networks based on radio over fiber
The Radio over Fiber technology allows the reduction of the cost of installation and maintenance of wireless access networks, since it can allow an optimized use of radio frequency (RF). Moreover, it employs simplified and inexpensive antennas. The IEEE 802.16 wireless networks, known as WiMAX, are low cost solutions for the last mile access to the Internet.
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/06/2011
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2. MÃtodos justos de alocaÃÃo dinÃmica de recursos em sistemas de transmissÃo baseados em OFDM com modulaÃÃo adaptativa
The growth of the telecommunications systems utilization and the introduction of the Third Generation Cell-Phone technologies motivate the industry to search for new alternatives to manage the traditional radio infrastructure, allowing so the offering of new business models and applications. In order to satisfactorily supply the demand generated this growth,
Publicado em: 2008
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3. 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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4. Um novo papel para o agente de integração: o estudo de caso do IEL/BA / A new role for the integration agent: the case study of IEL/BA
The study had as motivation the increasing fidget related to the distortions that compromise the purposes of the curricular training and the organizational dissatisfaction evidenced in the professional exercise regarding the interaction between university and company in Bahia. Considering the agents involved in the process of curricular training, which are t
Publicado em: 2006
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5. AJUSTAMENTO E CONTROLES DE QUALIDADE DAS LINHAS POLIGONAIS / LEAST-SQUARES ADJUSTMENT METHOD AND QUALITY CONTROLS OF TRAVERSES
Brazil is a country of great dimension that still holds unexplored areas of little population nowadays. Actually these lands are state-owned, but they have been appropriated as a private property, especially in the Amazon basin. The need for a governmental more effective territorial management was formally implemented through the establishment of a geodetic
Publicado em: 2005
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6. Nutrição e ecologia nutricional de cervídeos brasileiros em cativeiro e no Parque Nacional das Emas - Goiás / Nutrition and nutritional ecology of brazilian cervids in captivity and in the Emas National Park - Goias
There are limited data on energy requirements of brazilian cervids. Thus, it is difficult to succeed in their management and reproduction in captivity. Knowing the energy requirements is also important to determine the necessary nutritional resources for their conservation in parks and reserves. The first objective was to study the nutritional requirements o
Publicado em: 2005
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7. RADIO RESEARCH MANAGEMENT TECHNIQUES FOR HIERARCHICAL CELL SYSTEMS / ESTUDO DE TÉCNICAS DE GERÊNCIA DE RECURSOS DE RÁDIO PARA SISTEMAS CELULARES HIERARQUIZADOS
Multilayer cell systems are useful to accommodate high traffic densities while still satisfying the QoS requirements. These systems combine the advantages of microcellular and macrocellular systems which are: the increase of system capacity and the reduction of the number of handoffs, hence decreasing the signaling load. This work address design aspects such
Publicado em: 2003
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8. SIMULAÇÃO E DESEMPENHO DE SERVIÇO INTEGRADO DE VOZ E DADOS EM SISTEMAS CELULARES UTILIZANDO O PADRÃO GSM/HSCSD / SIMULATION AND PERFORMANCE OF INTEGRATED DATA AND SPEECH SERVICE IN CELULAR SISTEMS USING GSM/HSCSD
Due to the increasing use of cellular networks for data transmission, mobile telephone operators are facing a dramatic raise in using radio resources to supply their demand. As a result, they are being forced to migrate to new technologies that provide high spectral efficiency, allowing an optimized use of available spectrum. This work describes the developm
Publicado em: 2002
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9. DYNAMIC ALLOCATION OF CHANNEL WITH PRIORITY TO CALLS THAT ARE IN HANDOFF / ALOCAÇÃO DINÂMICA DE CANAIS COM PRIORIDADE PARA CHAMADAS EM HANDOFF
This work investigates the behavior of channel allocation schemes for Mobile Cellular Systems, when associated with channel guards giving priority to calls that are in handoff procedure. The objective of this association is a better call quality compared to the one in which this technique is not used. Simulation results show that indeed this can be achieved.
Publicado em: 1999