Multimedia Services On The Internet
Mostrando 1-9 de 9 artigos, teses e dissertações.
-
1. Um esquema de seleção de rotas para o balanceamento de segurança e desempenho em redes em malha sem fio / Um Esquema de Seleção de Rotas para o Balanceamento de Segurança e Desempenho em Redes em Malha Sem Fio
Wireless mesh networks (WMNs) have been used to support multimedia applications on different domains, such as health care and entertainment, that require high levels of security and performance simultaneously. Those networks comprise of a wireless backbone of routers that cooperate to provide data communication among mobile devices, such as notebooks, PDAs a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/05/2011
-
2. BlueYou: uma plataforma de comunicação ciente de contexto baseada em serviços para computação móvel
O crescente número de dispositivos móveis com capacidade computacional elevada e suporte a diferentes tecnologias de transmissão sem fio tem motivado a criação de serviços de comunicação capazes de fornecer informações aos usuários a qualquer momento e em qualquer lugar. Particularmente, nota-se a existência maciça de dispositivos equipados com
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/04/2011
-
3. Mandarim: uma solução para negociação de serviços com QoS em redes em malha sem fio utilizando agentes autônomos
Wireless Mesh Networks (WMN) are composed by routing and client nodes, where these routing nodes have little or no mobility and form a wireless backbone. Such networks provides access to wired or wireless devices and its backbone integrates the WMNs with other networks such as the Internet, cellular networks, IEEE 802.11, IEEE 802.15, IEEE 802.16, etc. WSNs
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/02/2009
-
4. AvaliaÃÃo da Qualidade de Voz do ServiÃo VoIP em Sistemas HSDPA / Evaluation of the quality of voice of the VoIP service in systems HDSPA
In recent years, we can observe the development and fast dissemination of VoIP services, being integrated by the present market, beside conventional telephony and cellular networks. For being a technological alternative that contributes to minimize costs, we see an increasing preference for voice transmission through IP networks. HSDPA, as a cellular system,
Publicado em: 2007
-
5. Um middleware para construÃÃo de aplicaÃÃes de TV Digital distribuÃdas baseadas no Modelo P2P
Interactive Digital Television comes with a lot of changes which are much more than video and audio quality enhancements. It increases diversity and improves availability of multimedia content and turns spectators into multimedia application users. These applications will come with multimedia content and will give to the users the opportunity to actively int
Publicado em: 2006
-
6. Uma proposta para a provisÃo de QoS em redes backbone UMTS
With the growth of the demand of multimedia applications in the Internet and with the current backbones, it is expected that UMTS backbones support different applications with QoS requirements, mainly those which are sensitive to delays, packet losses and jitter. However, real time applications require proper mechanisms to guarantee QoS according to their sp
Publicado em: 2006
-
7. Info-entretenimento na telefonia celular: informação, mobilidade e interação social em um novo espaço de fluxos
The information era, characterized by the centralization of information processes, undergoes a new phase, due to the wireless connection provided by mobile digital technologies. Among these, the mobile phone stands out, having gone through many transformations in the past years, both in external appearance and in its functions. Currently it has gone beyond b
Publicado em: 2006
-
8. IOPQ : uma fila para implementaÃÃo de serviÃos nÃo-eletivos na internet
Recent Internet research has been the scene for a number of Quality of Service (QoS) proposals. However, the best effort paradigm continues to be the only forwarding mechanism available in public IP networks and Intranets. The reasons for this are wide ranging. Most of the proposals are seen to be complex, difficult to provision and control. Furthermore, mos
Publicado em: 2005
-
9. Uma arquitetura para suporte a ubiquidade dos serviços de telecomunicações baseada na arquitetura TINA e em agentes moveis
Telecommunications have had a strong impact on the society in the last decades. Nowadays, this role is ever increasing and pushing the technological and economic evolution of our society. The evolution of telecommunications creates new services that exploit the convergence among data communication, computation and entertainment. These new services feature he
Publicado em: 2000