|
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 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.
| Limitations: |
 APPROVED FOR PUBLIC RELEASE |
| Description: |
Technical rept. |
| Pages: |
36 |
| Report Date: |
2005 |
| Contract Number: |
F306029710215 |
| Report Number: |
A246934 |
|
|
|
|
|
Keywords relating to this report:
Email This Abstract
