Mobile And Wireless Technologies
Mostrando 13-22 de 22 artigos, teses e dissertações.
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13. 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
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14. A Teoria da Hospitalidade e o processo de adoção de tecnologias da informação móveis e sem fio / The Theory of Hospitality and the process of adoption of mobile and wireless information technologies
As Tecnologias da Informação Móveis e Sem Fio (TIMS) têm sido cada vez mais aplicadas aos processos organizacionais. É importante tentar compreender as formas pelas quais as pessoas e organizações constroem um sentido a respeito dessas tecnologias e como elas as integram em seu trabalho diário. Desta forma, aplicando a Teoria da Hospitalidade propost
Publicado em: 2005
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15. A tecnologia da informação como gestora da hiperconectividade em prol do trabalho cooperativo.
The current scene of the Information Technology (IT) points a trend of integration of the heterogeneous databases and the emergency of a model of cooperative work between groups in corporative environments. An increasing demand of the users perceived in the groups that use of devoid applications business-oriented of bigger freedom and flexibility in the use
Publicado em: 2004
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16. Global mobile IPv6 addressing using transition mechanisms
The adoption of the Internet Protocol in mobile and wireless technologies has considerably increased the number of hosts that can potentially access the global Internet. IPv6 is considered the long term solution for the IPv4 address shortage problem, but the transition from IPv4 to IPv6 is supposed to be very gradual. Therefore, there will be a long time dur
Journal of the Brazilian Computer Society. Publicado em: 2003-04
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17. Estudo comparativo dos aspectos de segurança em redes WWAN, WLAN e WPAN
The constant evolution 01 wireless technologies have prompted an increasing interest lor mobile computing in general, which in turn have contributed to advancements in mobile communication. If, on one side, wireless networks opened the possibilities for personal service businesses, they also exposed a whole new range 01 serious security issues such as greate
Publicado em: 2003
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18. Adaptative Antennas for Wireless Communications Systems / Antenas Adaptativas para Sistemas de Comunicações Sem Fio
Adaptive antennas is a radiating system that allows a control of the format and the direction of radiation diagram. With this control, they are capable to guide the main lobe of the radiation diagram to the desired signal and to reduce, simultaneously, the influence of the interferences signals. These systems have an accented demand in the technologies 3G an
Publicado em: 2003
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19. Uma estrutura de suporte para adaptação em jogos 3D multiusuário
With the growing dissemination and reliability of wireless networks and the emergence of devices with more and more processing and communication power, applications up to now restricted to PCs are being envisaged to run on devices as heterogeneous as wrist clocks with GPS locators, refrigerators with internet access, up to mobile phones, PDAs, settop- boxes
Publicado em: 2003
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20. UM FRAMEWORK PARA PROVISÃO DE QOS EM REDES MÓVEIS SEM FIO / A FRAMEWORK FOR QOS PROVISIONING IN WIRELESS MOBILE NETWORKS
In the last decades, increasing interest has been observed in technologies related to wireless mobile communication environments. Great part of such interest follows the growth in the telecommunications industry, more specifically of cellular mobile telephony systems. Users are quickly absorbing these technologies and generating new necessities, such as the
Publicado em: 2002
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21. Serviços baseados na localização do usuário em um ambiente móvel
In the recent development stage of wireless devices, infra-structure and related technologies, demand for availability of useful services and applications is growing quickly. The cellular communication network, one of the most propelling impulses of the market, is already enabling the development of data access technologies. However, either with facilities o
Publicado em: 2001
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22. Consistencia de dados em um ambiente de computação movel
The fast advance in wireless communication technologies and satellites service have enabled the appearance of a new paradigm in computer science, called mobile computing. Solutions to problems in mobile computing are different from those to traditional distributed systems, due to a set of inherent characteristics of mobile environment, like: mobility, freque
Publicado em: 1999