Routing Protocols
Mostrando 13-23 de 23 artigos, teses e dissertações.
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13. Proposta de um modelo de confiança para o protocolo OLSR
This work presents a new computational trust model, developed to improve the packets forwarding in MANET using OLSR protocol. Mobile Ad hoc Networks (MANET) are composed of mobile devices that communicate directly without the need of any prior infrastructure. The nodes in these networks operate as routers. The Optimized Link State Routing Protocol (OLSR) is
Publicado em: 2008
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14. Proposta e implementação de uma MIB para o protocolo OLSR
Amongst the MANET Mobile Ad Hoc Networks routing protocols, the OLSR Optimized Link State Routing stands out. It is classified as proactive and as link-state. The proactivity characteristic, in opposition to the reactivity, states that such protocols have at their disposal all routes prior to being demanded. On the other hand, link-state routing protocols, d
Publicado em: 2007
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15. Uso de small worlds no roteamento em redes de sensores sem fio / Use of small worlds in wireless sensor networks routing
In this work, has made an study about the use and influences of the small world effect, or six degrees of separation, in routing of wireless sensors network (WSNs). For this objective, was analyzed the characteristics of WSNs that influence in the routing and the different types of protocols. Moreover, was studied the characteristics of small world effect an
Publicado em: 2007
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16. Arquiteturas Cross-layer para Redes de Sensores sem Fio
The majority of proposed communications protocols in sensor networks thrive on the collaborative nature of sensor nodes to optimize a number of important operational aspects such as routing, energy consumption, load balancing and traffic optimization. Common to all the proposed solutions are the fact of these networks also are projected on the traditional la
Publicado em: 2007
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17. Architecture and implementation of a topological information and traffic engineering service to RWA systems / Arquitetura e implementação de um serviço de informações topologicas e de engenharia de trafego para sistemas RWA
GMPLS-controlled all-optical networks are the promise to handle the increasing volume of IP traffic. The GMPLS routing and signaling protocols, mainly OSPF and RSVP, work in such a way that the route calculation for optical circuits does not take into account the wavelength (label) availability. This is not optimal in terms of network resources usage and blo
Publicado em: 2006
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18. Análise lógica de protocolos, proposta e avaliação de desempenho de um algoritmo de atribuição de rótulo baseado em SRLG em um ambiente GMPLS-WDM. / Protocol logical analysis, proposal and performance evaluation of a label assignment algorithm based on SRLG in a GMPLS-WDM environment.
To satisfy the explosive increasing demands of voice and data traffic, optical networks based on WDM and GMPLS are being developed. The GMPLS´ suite of protocols is currently being considered as the control plane for optical networks and it is compounded of signaling and routing protocols, and also the link management protocol (LMP). The LMP is an important
Publicado em: 2006
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19. OPER: uma famÃlia de protocolos para roteamento em redes de sensores sem fio
A contÃnua miniaturizaÃÃo dos componentes de hardware e a evoluÃÃo das tecnologias de comunicaÃÃo sem fio tem estimulado o desenvolvimento e o uso de Redes de Sensores Sem Fio (RSSF). Tipicamente, uma RSSF Ã formada por centenas a milhares de nÃs sensores, e por dispositivos de baixa capacidade equipados com um ou mais sensores. Estes sensores possu
Publicado em: 2005
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20. Uma estrategia de roteamento OSPF adaptativo baseado em estimação de banda / An adaptive OSPF routing strategy based on bandwidth estimation
Internet increase and diversity demand "smart" tools that could make possible to routing protocols self-adapt to network current state (its topology and congestion situation). Smart tools, although, can result in great processing and communication overload. This work presents, besides a new adaptive OSPF routing strategy based on bandwidth estimations, a sim
Publicado em: 2004
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21. UM FRAMEWORK PARA SIMULAÇÃO DE REDES MÓVEIS AD HOC / A FRAMEWORK FOR SIMULATION OF MOBILE AD HOC NETWORKS
Uma rede móvel ad hoc consiste de uma coleção de dispositivos computacionais portáteis, equipados com uma interface de comunicação sem fio, com uma distribuição arbitrária e dinâmica no espaço, e onde cada host também serve de roteador para os demais hosts, descobrindo e mantendo rotas multi-hop entre os hosts. De uma forma geral, os protocolos p
Publicado em: 2002
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22. Analyzing the effects of asymmetric unicast routes on multicast routing protocols
Different multicast routing protocols construct their distribution trees based on the information obtained from the unicast routing infrastructure. Nevertheless, the design of most of these protocols do not take into account that unicast routes may be asymmetric. Indeed, unicast routes in the Internet are very asymmetric. The effects on the quality of the mu
Journal of the Brazilian Computer Society. Publicado em: 2001
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23. Modeling the Internet's large-scale topology
Network generators that capture the Internet's large-scale topology are crucial for the development of efficient routing protocols and modeling Internet traffic. Our ability to design realistic generators is limited by the incomplete understanding of the fundamental driving forces that affect the Internet's evolution. By combining several independent databas
National Academy of Sciences.