Accession Number:

ADA460391

Title:

Toward Distributed Service Discovery in Pervasive Computing Environments

Descriptive Note:

Journal article

Corporate Author:

MARYLAND UNIV BALTIMORE DEPT OF COMPUTER SCIENCE AND ELECTRICAL ENGINEERING

Report Date:

2006-02-01

Pagination or Media Count:

17.0

Abstract:

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 classsubClass 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.

Subject Categories:

  • Computer Programming and Software
  • Computer Systems
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE