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GPS receiver performance can suffer in difficult environments such as urban canyons and heavy foliage. Inertial sensors provide information between GPS updates and can enhance the position solution in a GPS/INS architecture. Additional information from safety sensors already on the vehicle, such as lane departure warning (LDW) sensors, can enhance the navigation solution further by constraining inertial...
We describe the NOCTURNAL system which provides Ambient Assisted Living with a focus on night-time support. This paper explains the design principles, the technological infrastructure and the software intelligence which facilitates autonomous assistance in the form of therapeutic interventions.
Smart Homes provide an infrastructure for implementing the 'ageing in place' paradigm. Assisted living services are essential features within a smart home. This paper presents the details of preliminary work in the development of a context-aware assistance system that can be used pervasively within smart homes. We have investigated the issues surrounding the provision of assistance in undertaking...
This paper addresses the issue of the creation of context-aware applications inside the Mobile-Learning approach. It tries to clarify aspects like the most suitable environments of application; how new features of mobile devices, such as GPS (Global Positioning System) receivers, motion sensors, etc., must be taken into account. It also addresses why most of the m-Learning applications do not make...
This paper presents a theoretical estimation for idle channel time in a multi-hop environment. Idle channel time is the time proportion of a node during which the channel state is idle. Thus, it can be used to evaluate the available bandwidth. Major related work considers a cross-layer model, where the idle channel time measure is available at the MAC layer, but it is rarely implemented. Furthermore,...
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