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Wireless self-organizing network including WiMAX (worldwide interoperability for microwave access) mesh networks can provide effective communication in pervasive computing environment. To resolve the problem that WiMAX Mesh network lacks QoS (Quality of Service) guarantee mechanism, a novel resource reservation mechanism used in WiMAX mesh network is proposed. This mechanism uses existing service...
To develop practical ubiquitous computing (UbiComp) applications, we design, formalize and implement a proactive service mechanism (PSM). However, in UbiComp environments, imprecise and incomplete context information, as well as limited resource, introduces novel challenging issues for PSM from service model and quality of service (QoS) model to service selection algorithm. In our design, we propose...
In the mobile and resource-constrained ubiquitous computing environments, we need an effective quality of service (QoS) model to support dynamic service selection in tune with the variation of context. To serve this purpose, we explore the concept of QoS and propose a context-based QoS model with hierarchical structure. Based on the context model, the QoS model can identify different types of context...
In ubiquitous computing scenarios, there is urgent need for service infrastructure to provide effective service provision according to current context such as device capability, network status and user preference, etc. Our work focused on developing a context-aware service selection engine that can dynamically select appropriate services for end-users. To serve this purpose, we explored the traditional...
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