Context aggregation and dissemination in ubiquitous computing systems

Chen, Guanling; Kotz, David

doi:10.1109/mcsa.2002.1017490

Cited by 55 publications

(1 citation statement)

References 28 publications

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“…Here it is undesirable to expect the users to configure and manage the devices by themselves, particularly when the contexts around them continuously change [1]. In such environment the post PC-type computers can provide various useful services by using the real-time context information of the objects [2].…”

Section: Introductionmentioning

confidence: 99%

Publisher-side Event Filtering for QoS-Awareness in Ubiquitous Computing

Heo

Lim

Seo

et al. 2007

2007 International Conference on Computational Science and Its Applications (ICCSA 2007)

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In the ubiquitous computing environment a user may interact with a large number of devices. The publish/subscribe paradigm is suitable for the various applications by allowing the subscribers to declare their interests and receive only the notifications of interest. This paper propose a novel event filtering approach preventing waste in the space of the event queue of the event channel due to unwanted events and reducing the network load. Performance evaluation reveals that the proposed scheme displays significant improvement over the existing event service, Java messaging service (JMS) and Omnievent service in terms of event delivery time for various numbers of servers and data sizes.

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Section: Introductionmentioning

confidence: 99%

Publisher-side Event Filtering for QoS-Awareness in Ubiquitous Computing

Heo

Lim

Seo

et al. 2007

2007 International Conference on Computational Science and Its Applications (ICCSA 2007)

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DiaSim: a simulator for pervasive computing applications

Bruneau

Consel

2012

Softw Pract Exp

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Pervasive computing applications involve both software concerns, like any software system, and integration concerns, for the constituent networked devices of the pervasive computing environment. This situation is problematic for testing because it requires acquiring, testing and interfacing a variety of software and hardware entities. This process can rapidly become costly and time-consuming when the target environment involves many entities. This paper introduces DiaSim, a simulator for pervasive computing applications. To cope with widely heterogeneous entities, DiaSim is parameterized with respect to a description of a target pervasive computing environment. This description is used to generate both a programming framework to develop the simulation logic and an emulation layer to execute applications. Furthermore, a simulation renderer is coupled to DiaSim to allow a simulated pervasive system to be visually monitored and debugged.DiaSim has been implemented and used to simulate various pervasive computing systems in different application areas, demonstrating the generality of our parameterized approach.

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Towards a Reliable, Wide-Area Infrastructure for Context-Based Self-management of Communications

Stevenson

Nixon

Dobson

2006

Lecture Notes in Computer Science

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Abstract. In this paper we describe ConStruct, a distributed, contextaggregation based service infrastructure which supports the development of context-aware applications. ConStruct operates by automatically generating and maintaining directed context-processing graphs which connect applications to the sources of data they require at a relevant level of abstraction. The infrastructure also supports the dynamic creation of context processing elements to bridge gaps between available and requested information. ConStruct provides a reliable, scalable infrastructure; focused on self-maintenance in order to alleviate developer workload. We describe the infrastructure design and implementation, the associated programming model, and our planned extensions to the infrastructure.

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Context aggregation and dissemination in ubiquitous computing systems

Cited by 55 publications

References 28 publications

Publisher-side Event Filtering for QoS-Awareness in Ubiquitous Computing

Publisher-side Event Filtering for QoS-Awareness in Ubiquitous Computing

DiaSim: a simulator for pervasive computing applications

Towards a Reliable, Wide-Area Infrastructure for Context-Based Self-management of Communications

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