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Issue No.02 - February (2006 vol.5)
pp: 97-112
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.
Index Terms- Service discovery architecture, pervasive computing, MANET, OWL, semantic description, peer-to-peer, advertisements.
Dipanjan Chakraborty, Anupam Joshi, Yelena Yesha, Tim Finin, "Toward Distributed Service Discovery in Pervasive Computing Environments", IEEE Transactions on Mobile Computing, vol.5, no. 2, pp. 97-112, February 2006, doi:10.1109/TMC.2006.26
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