Routing System
Mostrando 13-24 de 49 artigos, teses e dissertações.
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13. Modelling ant colony behavior in a dynamic environment and its applications to packet routing systems / Modelagem do comportamento de colônias de formigas em ambientes dinâmicos e sua aplicação em sistemas de roteamento de pacotes
The modeling of the behavior of a colony of foraging ants in a dynamic environment presented in this dissertation is based on experiments with the Argentine ant Linepithema humile under laboratory condition, using an experimental device similar to a network, consisting of tunnels and bifurcations, which is placed between the colonys nest and the food source.
Publicado em: 2009
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14. Análise da associação dos protocolos de roteamento AODV e DSR com o algoritmo Gossip, sistema de Quorum e com um novo algoritmo de economia de energia, PWSave. / Association analisys of the routing protocols AODV and DSR with Gossip, Quorum system and a new algorithm, PWSave.
This work studies the implementation of the Quorum system associated with the Gossip algorithm, the implementation of a new power saving algorithm - the PWSave - and the routing protocol AODV in a scenario with and without failures of an ad hoc network with mobility. It has been chosen to implement this work in an environment of simulation, because the mathe
Publicado em: 2009
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15. 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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16. Analysis of Vehicle Routing via TransCAD: a Contribution to Urban Freight Distribution / Estudo de roteirização de veículos empregando o TransCAD: contribuição para a distribuição urbana de cargas
This study analyzes urban freight distribution from the wholesale distribution sector to supermarkets retail sector via TransCAD software, and the vehicle routing problem with time windows has been applied for possible delivery route optimization. TransCAD focuses on a transport system based on graph theory concepts which have been employed in this study, to
Publicado em: 2009
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17. Otimização multi-objetivo aplicada à alocação dinâmica de rotas em redes de telecomunicações
The new networking technologies and the Internet difusion produced the data traffic increase in the networks. The quality of service (QoS) requirements for applications also increased and become stricter. Different QoS metrics can be evaluated by applications, for example the delay, the load balance and the packets lost in the communication.Different optimiz
Publicado em: 2009
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18. AtenÃÃo à saÃde de professoras com alteraÃÃes vocais: um estudo das trajetÃrias do cuidado sob a Ãtica da integralidade
Among all the achievements reached by the SUS, the changes aiming at the resource and activity decentralization and expanding the provision of health services are the most evident. Concerning the integrality, however, progress has not proceeded at the same pace, becoming one of the biggest challenges for the system. Research on integrality often compare the
Publicado em: 2009
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19. A service-oriented infrastructure for ecological niche modelling. / Uma infraestrutura orientada a serviços para a modelagem de nicho ecológico.
Ecological niche modelling combines environmental data and information about the occurrence of a species to obtain models to describe its probabilistic distribution in a region. Computational algorithms generate models based on the hypothesis that, if a species was found under the conditions which define its niche, then it may survive in any place which offe
Publicado em: 2009
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20. Utilização de algoritmos genéticos híbridos e Web 2.0 no desenvolvimento de sistemas de roteirização de veículos
The use of a computer system for vehicle routing is essential for the competitiveness of companies working with distribution of resources and products. Despite high cost, such a system ofiers a guaranteed return on investment made. Using a Metaheuristics techniques combined with the resources currently ofiered by web, free development tools can be developed
Publicado em: 2008
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21. Comparação de desempenho entre as configurações celular, funcional e celular virtual através de simulação e projeto de experimentos
The appropriate choice of the production management system and the physical layout of the shop floor are fundamental for the viability of an industrial activity in the current globalized and highly competitive economy. More and more specialized products, with successively shorter life cycles seek to respond to the frequent market changes, demanding an agile
Publicado em: 2008
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22. WBG (Whois Based Geolocation): uma estratÃgia para localizaÃÃo geogrÃfica de hosts na Internet
By knowing the hostâs geographic location, one can offer several user tailored applications, such as: a) web pages with regional preferences (e.g. an online user may receive selective and directed advertising according to her location or be subject to automatic language selection when displaying content); b) control data availability, according to user geog
Publicado em: 2008
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23. ANÁLISE DA DINÂMICA DA ATENUAÇÃO POR CHUVAS EM REGIÕES TROPICAIS / DYNAMIC ANALYSIS OF RAIN ATTENUATION IN TROPICAL REGIONS
The main effect causing non-availability in radio communication systems operating in frequencies above 10GHz, is the rain attenuation, particularly the heavy convective rain that is predominant in tropical regions. This thesis presents a detailed study and modelling of the dynamics of rain attenuation in terrestrial links and earthspace links, based on data
Publicado em: 2008
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24. The period vehicle routing problem. / O problema de roteirização periódica de veículos.
The period vehicle routing problem can be viewed as a generalization of the classic vehicle routing problem due to two singular features: a planning period longer than one day in which vehicles make several trips and frequencies of visit associated to points to be serviced. This type of problem may arise in different practical applications. Nowadays, some Br
Publicado em: 2007