Context-Aware Mobile and Ubiquitous Computing for Enhanced by Dragan Stojanovic

By Dragan Stojanovic

Advances in cellular computing, instant communications, cellular positioning, and sensor applied sciences have given upward push to a brand new category of context-aware cellular and ubiquitous functions.

Context-Aware cellular and Ubiquitous Computing for better Usability: Adaptive applied sciences and purposes presents thorough insights and important learn advancements on cellular applied sciences and providers. this crucial reference ebook explains how clients of such functions entry clever and adaptable info providers, maximizing comfort and minimizing intrusion.

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An integrated approach to context-aware adaptation 19 Context-Aware Adaptation in an Ecology of Applications 2. 3. 4. 5. Resource-awareness: Request the current available resources on the device. This includes the CPU load, the memory and bandwidth usage, and the battery status. Context dependencies: Check which context information is required by the active applications for personalized content and optimal component behavior. Context component selection: Determine for each context concept the minimum resource requirements, and select the most appropriate component.

They are used Context-Aware Adaptation in an Ecology of Applications • • to deliver asynchronous messages from one component port to another. Asynchronous messaging allows connecting to remote components and prevents the blocking of one component for another. Contracts: Contracts impose non-functional constraints on a component or a group of interacting components. Contracts can be used, for example, to guarantee memory availability or bandwidth constraints within an application internally. Contracts can be used to specify user requirements and to ensure optimal deployment on embedded devices.

Context addresses based on context groups provide a clean way to address a number of related objects or persons, using a declarative description. As mentioned above, our context addressing scheme contains a description about the environment where the information may be found, as first described in Victor et al. (2007). This field is used by the routing algorithm to decide what search algorithm is used to execute the request, or limit the search space of the search algorithm. type. name == “Sales Manager”), History(jim), InRange(ThisTown(), 0) targets all nodes interested in the data type description ‘Messages from sales managers’ within 20 meters of Jim, where the data is relevant for the personal log of Jim’s actions, and the search space is limited to the town of the sender of the request.

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