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An important aspect in the design of pervasive/ubiquitous applications is to evaluate them before their deployment in real scenarios. A possible strategy to assess them is to perform simulations that provide useful insights and results to the application designer. However, the simulation of pervasive/ubiquitous applications and environments has proven to be a considerable challenge for several reasons...
Reducing cost of service is an important goal for Service Discovery technologies. The shortcomings of transhipment-method and hibernation-method are to increase holistic cost of service and to slower resource discovery respectively. To overcome these shortcomings, a new method based on context-aware computing is developed. This method, firstly, analyzes the courses of devices using Service Discovery...
Almost all context-aware systems have two indispensable components - context provider and context consumer. The former is responsible for supplying diverse context information about users and environments, while the later makes use of context information in building context-aware applications. The diversity of context information from heterogeneous context suppliers to different consumers justifies...
If multiple VM (virtual machine) in a virtual server and multiple I/O device nearby can be connected dynamically to make a computing environment, the user can enjoy the computing environment using various I/O devices which he want to use. The virtualization system makes a context-aware computing environment by using the I/O devices nearby and the appropriate VM which the user likes to use.
We envisage future context-aware applications will dynamically adapt their behaviors to various context data from sources in wide-area networks, such as the Internet. Facing the changing context and the sheer number of context sources, a data management system that supports effective source organization and efficient data lookup becomes crucial to the easy development of context-aware applications...
Managing sensors, actuators and devices for supporting context-aware applications poses great challenges, such as the efficient coordination and cooperation among them, their self-configuration, as well as the management of their interactions. This papers aims at creating a middleware platform for the provision of the following functionalities: configurability, adaptability, heterogeneity and interoperability...
The main goal of this article is to show a context-aware PAA multi-agent system (CAPMAS) framework and how it conveys context-aware computing and agent technologies into ubiquitous system. We use context-awareness to provide computing environments with the ability to usefully adapt the services or information they provide. The dasiaagent technologiespsila take into account of different service solutions,...
Context-aware computing is characterized by the software's ability to continuously adapt its behavior to an environment over which it has little control. This style of interaction is imperative in ad hoc mobile networks that consist of numerous mobile hosts coordinating opportunistically via transient wireless connections. In this paper, we provide a formal abstract characterization of an application's...
Ubiquitous computing promises to both assist us in everyday tasks and enhance our capabilities. Key elements towards fulfilling this goal are exploiting the physical and logical context in which computation occurs, in order to scope the interaction between users and applications. In this paper we describe an RFID-based platform allowing mobile entities to transparently associate with ubiquitous applications...
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