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In this paper, a mechanism for supporting Quality of Service in wireless networks through the dynamic reselection of Access Points (APs) according to a terminal based load balancing scheme is presented. The mechanism is analyzed, and a corresponding implementation on laptops is presented, while evaluation through both simulation and actual field trials are included. Implementation refers to both Linux...
Personalization is undoubtedly present in today's pervasive and ubiquitous environments and tends to be an increasingly popular requirement in every technological aspect of the everyday life. When it comes to live multimedia services, however, there is still a lot to be done to satisfy the demanding user who wishes to view the most important parts of events that take place in parallel. In this paper,...
In this paper, the issue of real time personalized media streaming distribution over different networks is presented. Alternative scenarios are presented, together with details on implementation and discussion on the pros and cons, in terms of implementation complexity, traffic overhead and provided functionality. The solutions have been developed and are currently under evaluation in the context...
In IEEE802.11 WLAN networks, Radio Resource Management (RRM) is necessary for the efficient use of scarce radio resources and to balance the telecommunication traffic load, among all the Access Points (APs) of the infrastructure network. In these networks, the mobile station MS has the functionality to select an AP, based on specific criteria. A key challenge is how to achieve overall load balancing...
Having witnessed a rapid development of the digital media literacy in the modern society due to a multitude of technological advances in the low-cost photography, cinematography and 2D/3D graphic design, there is a proliferation of high quality media content generated, distributed and experienced by the end users. This phenomenon, known as the user centric media (UCM), will play a significant role...
This paper presents the architecture of the My-e-Director 2012, an FP7 call-1 European funded project in the objective area of Networked Media. My-e-Director 2012, is a unique interactive broadcasting platform, which enables end-users to have access on innovative services, like selection of focal actors/scenes and points of interest within real-time broadcasted streams.
One of the main challenges in CDMA networks is traffic generation and network overloading of a live-system in an efficient and realistic way. This is much more efficient if the operator of the network could remotely generate traffic, in order to monitor the real QoS support of the network. On the other hand, network operators validate their network planning and dimensioning by numerous drive tests...
Wireless LANs are continuously expanding not only in terms of coverage but also in terms of traffic and services. This tremendous growth is ought to the flexibility that IEEE 802.11 networks offer and also to the extremely low cost of those network's components. Primary, the WLANs were used for office or home applications, in order to provide a wireless extension of the already existent wired LANs,...
This work tackles the hot issue of user handover from one network to another, or generally from one radio access technology (RAT) to another, in a 4G heterogeneous mobile and wireless environment without the interruption of an ongoing service (seamless handover) with user authentication support. This paper proposes an authenticated seamless handover mechanism and describes the authentication platform...
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