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Erschienen in:
2014 | OriginalPaper | Buchkapitel
An Enhanced Resource-Aware Query Based on RLS-based SIP Presence Information Service
verfasst von : Jenq-Muh Hsu, Yi-Han Lin
Erschienen in: Advanced Technologies, Embedded and Multimedia for Human-centric Computing
Verlag: Springer Netherlands
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Abstract
Many innovative services over the standardized SIP-based IMS signaling infrastructure have been widely deployed in the next-generation converged networks. The presence is a key feature for designing context-ware network service. It can efficiently reflect resource availability through subscription and notification mechanisms. Thus, it can apply the presence service to design a resource list server (RLS) to collect a set of resource information, such as resource availability and allocation in order to provide an efficient resource reporting for resource subscribers. In this paper, an improved RLS-based Resource-Aware Query Routing scheme is proposed, in which each server can obtain its neighbors’ utilization states notified from RLS. Besides, the proposed scheme is capable of minimizing message traffic between local presence server and its neighboring presence servers while maintaining full responsiveness for the resource subscribing management.