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Web caching has been used extensively to enhance web delivery to clients by minimizing the latency perceived by clients, reducing network bandwidth usage, reducing power consumption and improving the network quality of service. Caching performance can be improved by implementing an efficient replacement policy to be used for proper cache replacement. In mobile networks, the movement of users presents...
With the rapid developments and convergence in the communication and personal computing technology fields, the overall quality of ubiquitous communication has improved significantly. This is especially true with invention of portable mobile devices that can be connected almost everywhere at any time. However, the recent explosion on the usage of mobile devices has also generated several issues in...
This paper proposes a service differentiation architecture using virtualization of mobile femtocell. Network-prefix division multiple access (NDMA) is proposed to enable mobile devices inside a moving space to access the Internet with different service demands. With the NDMA scheme, our architecture provides multiple virtual mobile networks for diverse services which are optimized under different...
The needs for better and faster medical service has force us to create a system that able to serve it. Nowadays, there are many medical records applications have been developed to serve the needs, but most of them still handle the needs in common management of a hospital or medical institution, whereas the subsystems are also needed to be handled even more detail. Having these needs, we need to develop...
The focus of existing virtual communities is centered on a particular product or social interaction and the role of mobile devices is restricted to exchange a limited amount of contents. Herewith we envisage that the upcoming virtual communities will exploit the potential of social interaction and context information to offer personalized services to its members and mobile devices will play a significant...
The improved processing power and battery life of mobile devices, as well as the near ubiquitous coverage of wireless data communication networks allow mobile users to use information services in a similar way to desktop users. People not only demand access to existing Internet services from their mobile devices, but also to have available new services specifically designed for mobile environments...
This contribution addresses the case when live packet-switched video is used to enrich circuit-switched speech calls in mobile telephony. Circuit-switched and packet-switched transmissions generally operate on completely different transmission paths resulting in different QoS in terms of delay and loss rates. In this case, video and audio data recorded at the same time are not multiplexed together...
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