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Distributed Context...
Distributed Context Support for Ubiquitous Mobile Awareness Services
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- Kanter, Theo, 1954- (author)
- Mittuniversitetet,Institutionen för informationsteknologi och medier (-2013),SensibleReality
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- Pettersson, Stefan, 1968- (author)
- Mittuniversitetet,Institutionen för informationsteknologi och medier (-2013),SensibleReality
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- Forsström, Stefan, 1984- (author)
- Mittuniversitetet,Institutionen för informationsteknologi och medier (-2013),SensorBasedServices, SensibleReality
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- Kardeby, Victor, 1984- (author)
- Mittuniversitetet,Institutionen för informationsteknologi och medier (-2013),SensibleReality
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- Norling, Roger, 1984- (author)
- Mittuniversitetet,Institutionen för informationsteknologi och medier (-2013),SensibleReality
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- Walters, Jamie, 1982- (author)
- Mittuniversitetet,Institutionen för informationsteknologi och medier (-2013),SensibleReality
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- Österberg, Patrik, 1975- (author)
- Mittuniversitetet,Institutionen för informationsteknologi och medier (-2013),SensibleReality
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(creator_code:org_t)
- IEEE conference proceedings, 2009
- 2009
- English.
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In: 2009 Fourth International ICST Conference on Communications and Networking in China. ChinaCom'09.. - : IEEE conference proceedings. - 9781424443376 ; , s. 869-873
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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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
- NATURVETENSKAP -- Data- och informationsvetenskap -- Datavetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Computer Sciences (hsv//eng)
Keyword
- 3G wireless; Centralized server; Context aware applications; Context data; Context information; Data models; Distributed protocols; Environmental data; Exchange protocols; Mobile awareness; Mobile service; Time distribution; Ubiquitous access
- Internet protocols; Network architecture; Network protocols; Real time systems; Wireless networks; Wireless telecommunication systems
- Computer science
- Datavetenskap
Publication and Content Type
- ref (subject category)
- kon (subject category)
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Kanter, Theo, 19 ...
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Pettersson, Stef ...
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Forsström, Stefa ...
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Kardeby, Victor, ...
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Norling, Roger, ...
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Walters, Jamie, ...
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Österberg, Patri ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Computer and Inf ...
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and Computer Science ...
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2009 Fourth Inte ...
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Mid Sweden University