IEEE Transactions on Mobile Computing

Towards Distributed Service Discovery in Pervasive Computing Environments

Dipanjan Chakraborty, Anupam Joshi, Yelena Yesha, and Tim Finin

June 11, 2003

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.

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Tags: advertising, manet, owl, p2p, pervasive computing, pervasive computing;protocols;peer to peer computing;owl;mobile computing;mobile ad hoc networks;computer networks;computer architecture;embedded computing;distributed computing;index terms- service discovery architecture;pervasive computing;manet;owl;semantic description;peer-to-peer;advertisements., semantic web, service discovery, service

Type: Article

Publisher: IEEE

Volume: 5

Number: 2

Downloads: 3698 downloads