Effect of caching in a broker based context provisioning system

Authors:
Saad Liaquat Kiani;Michael Knappmeyer;Eike Steffen Reetz;Nigel Baker;Ralf Tönjes
Affiliations:
University of the West of England, Bristol, United Kingdom;University of the West of England, Bristol, United Kingdom and University of Applied Sciences Osnabrück, Osnabrück, Germany;University of the West of England, Bristol, United Kingdom and University of Applied Sciences Osnabrück, Osnabrück, Germany;University of the West of England, Bristol, United Kingdom;University of Applied Sciences Osnabrück, Osnabrück, Germany
Venue:
EuroSSC'10 Proceedings of the 5th European conference on Smart sensing and context
Year:
2010

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Abstract

Caching is a well-established mechanism used in distributed systems for improving overall performance. In this paper, we analyse the effect of using a context cache in a broker-based context provisioning system. An experiment is carried out using a simulation based on our framework architecture of context consumers, context broker and context providers exchanging different types of context data over time. The results show notable improvement in the context query response time.