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Toward Distributed service discovery in pervasive computing environments

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4 Author(s)
Chakraborty, D. ; IBM India Res. Lab, Indian Inst. Of Technol., New Delhi, India ; Joshi, A. ; Yesha, Y. ; Finin, T.

The paper proposes a novel distributed service discovery protocol for pervasive environments. The protocol is based on the concepts of peer-to-peer caching of service advertisements and group-based intelligent forwarding of service requests. It does not require a service to be registered with a registry or lookup server. Services are described using the Web Ontology Language (OWL). We exploit the semantic class/subClass hierarchy of OWL to describe service groups and use this semantic information to selectively forward service requests. OWL-based service description also enables increased flexibility in service matching. We present simulation results that show that our protocol achieves increased efficiency in discovering services (compared to traditional broadcast-based mechanisms) by efficiently utilizing bandwidth via controlled forwarding of service requests.

Published in:

Mobile Computing, IEEE Transactions on  (Volume:5 ,  Issue: 2 )

Date of Publication:

Feb. 2006

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