Third party application control on quality of service in IP based multimedia networks

Authors:
Evelina Pencheva;Ivaylo Atanasov
Affiliations:
Department of Communication Networks, Faculty of Telecommunications, Technical University of Sofia, Sofia, Bulgaria 1000;Department of Communication Networks, Faculty of Telecommunications, Technical University of Sofia, Sofia, Bulgaria 1000
Venue:
Information Systems Frontiers
Year:
2012

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Abstract

The paper investigates the capabilities for open access to resource management in convergent networks. Based on the analysis of policy and charging control functions in Internet Protocol Multimedia Subsystem (IMS), requirements for third party application control on quality of service (QoS) are identified. The functionality of Open Service Access (OSA) and Parlay X interfaces is evaluated for support of dynamic QoS control. An approach to design of OSA compliant application programming interfaces to QoS management in IMS networks is presented. The interface methods are mapped onto the messages of network control protocols such as Diameter and Session Initiation Protocol (SIP). The application view of authorized QoS resources for SIP session is modeled. Implementation issues concerning behavioral equivalence of the authorized QoS resources model and SIP session state model are discussed.