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Distributed Context...
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Kanter, Theo,1954-Mittuniversitetet,Institutionen för informationsteknologi och medier (-2013),SensibleReality
(author)
Distributed Context Support for Ubiquitous Mobile Awareness Services
- Article/chapterEnglish2009
Publisher, publication year, extent ...
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IEEE conference proceedings,2009
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:miun-9669
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https://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-9669URI
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https://doi.org/10.1109/CHINACOM.2009.5339728DOI
Supplementary language notes
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Language:English
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Summary in:English
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Classification
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Subject category:ref swepub-contenttype
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Subject category:kon swepub-publicationtype
Notes
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Context-aware applications and services require ubiquitous access to context information about the users or sensors such as preferences, spatial & environmental data, available connectivity, and device capabilities. Systems for the brokering or the provisioning of context data via wireless networks do so with centralized servers or by employing protocols that do not scale well with real-time distribution capabilities. In other cases, such as the extending of presence systems, the data models are limited in expressive capabilities and consequently incur unnecessary signaling overhead. This paper presents a distributed protocol, the Distributed Context eXchange Protocol (DCXP), and an architecture for the real-time distribution of context information to ubiquitous mobile services: We present the architecture and its principle operation in a sample ubiquitous mobile awareness service. Preliminary results indicate that our approach scales well for the ubiquitous provision of context data in real-time to clients on the Internet via 3G wireless systems. Performed measurements show that DCXP can reduce the time to process context data with a factor of 20 compared to similar approaches.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Pettersson, Stefan,1968-Mittuniversitetet,Institutionen för informationsteknologi och medier (-2013),SensibleReality(Swepub:miun)stepet
(author)
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Forsström, Stefan,1984-Mittuniversitetet,Institutionen för informationsteknologi och medier (-2013),SensorBasedServices, SensibleReality(Swepub:miun)stefor
(author)
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Kardeby, Victor,1984-Mittuniversitetet,Institutionen för informationsteknologi och medier (-2013),SensibleReality(Swepub:miun)vickar
(author)
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Norling, Roger,1984-Mittuniversitetet,Institutionen för informationsteknologi och medier (-2013),SensibleReality(Swepub:miun)rognor
(author)
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Walters, Jamie,1982-Mittuniversitetet,Institutionen för informationsteknologi och medier (-2013),SensibleReality(Swepub:miun)jamwal
(author)
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Österberg, Patrik,1975-Mittuniversitetet,Institutionen för informationsteknologi och medier (-2013),SensibleReality(Swepub:miun)patost
(author)
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MittuniversitetetInstitutionen för informationsteknologi och medier (-2013)
(creator_code:org_t)
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In:2009 Fourth International ICST Conference on Communications and Networking in China. ChinaCom'09.: IEEE conference proceedings, s. 869-8739781424443376
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NATURAL SCIENCES
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2009 Fourth Inte ...
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Mid Sweden University