| |
| description |
The dissemination of messages according to clients' contexts
(i.e., location and other attributes) opens up new possibilities in
context-aware systems. While geocast or content-based
publish/subscribe forward messages according to client location or
attributes, respectively, neither uses a combination of the two. In
this paper, we present this new communication paradigm and the
challenges it poses. We also extend concepts from publish/subscribe
networks to efficiently deal with highly dynamic user location to
lower update rates by approximating the user's location. This
reduces update rates by between 25% and 90%, depending on the
granularity of the approximation.
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| publisher |
University of Stuttgart : Collaborative Research Center SFB 627
(Nexus: World Models for Mobile Context-Based
Systems)
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| IEEE Communications Society
|
| type |
Text
|
| Article in Proceedings
|
| source |
In: IEEE International Conference on Communications, 2009. ICC
'09., pp. 1-6
|
| contributor |
Institut für Parallele und Verteilte Systeme, Verteilte
Systeme
|
| subject |
Network Architecture and Design (CR C.2.1)
|
| Network Protocols (CR C.2.2)
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| Distributed Systems (CR C.2.4)
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| Internetworking (CR C.2.6)
|