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Nowadays, network operators face the challenge to host millions of devices having various needs. With the traditional connectivity management in EPS/LTE accesses, security services such as confidentiality and integrity protection are designed to be activated in a systematic manner leading to significant signaling and processing cost. In this paper we are interested in looking at security implementation...
This paper presents an algorithm that generalizes big sets of contextual situations. Apart from giving details on its mechanisms and implementation, we discuss its employment in a context experience sharing system, KRAMER, and simulate its performance in function of several parameters modelling the expected real data experiment.
Starting from a context-aware phonebook application, which allows users to see their contacts' situation, we introduce a collaborative context experience system. Users independently create notification rules, describing phonebook-based contextual situations for which they wish to receive notifications. The collaborative system gathers such rules from all users, and identifies important ones, that...
Advanced context-aware telecom services require evaluating rules encompassing local or remote, raw or abstract context situations. The meteoric rise of smartphones raises the question of potential deployment of terminal-based context-aware services versus a network-centric one. In this paper we compare these two approaches through the analysis of typical context-aware services.
The ceaseless evolution of wireless communications is taking the shape of the so called 4G networks: Fundamentally different radio technologies coexist and cooperate to offer continuous connectivity to applications. Mobile devices are now equipped to take advantage of access media abundance to improve the user experience. However, traditional management techniques were quickly obsoleted by the spatial...
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