Policy based resource management for QoS aware applications in heterogeneous network environments

Abstract

Dynamic configuration and adaptation of resources for QoS-aware applications in heterogeneous access network environment (UMTS, WIMAX, WLAN DVB-T, DVB-H) using automated tools is a challenge today. The focus of this paper is a toolkit for intelligent management of resource allocation in heterogeneous network infrastructures based on policies of different actors (network operator, service providers and users). Policy based management of resources for QoS-aware applications (Video-on-Demand, Mobile TV) dependent on network capabilities, context learning and preferences of the policy actors is proposed, which enhances the current state-ofthe-art and IETF standardisation. The policy management toolkit includes components for policy specification, adaptation and enforcement, which are interacting using policy repository. The design allows the automated resource adaptation for QoS based applications based on context information and hierarchical dependencies of policy actors. A learning component is integrated in order to discover the context considering measurement and monitoring data. The policy management tookit is discussed, emphasising on ontology driven policy repository design, context learning and flexible scenario-oriented management interfaces for policy specifications

Seamless Handover For Unidirectional Broadcast Access Networks In Mobile IPv6

“…Technologies for intelligent handover are aimed to obtain the capabilities for the neighbour access networks and to select the optimal access network for the applications according specific goals. There are different components (technologies) for intelligent handover support, such as: -Intelligent interface selection at mobile node [25]; -Access network discovery [15], [16], [18]; -Policy management [7], [22]; -Media independent handover and information base, allowing cross layer decisions [8]; -Context Transfer [14], [30].…”

“…The mobile terminal makes handover decisions based on the received information about the capabilities of candidate access routers. Automated policy management for heterogeneous mobile IP environments is aimed to support the handover decisions considering business goals of policy actors (users, service providers and network operators), preferences and profiles of actors and applications [22]. Possible scenarios for policy management of mobile applications with multiple interfaces using unidirectional broadcast networks include: -Enforcement of specific handover strategies to support multicast applications requiring unidirectional links.…”

An integration of semantics in Multi Criteria Decision Making for converged multimedia network management

“…VI. RELATED WORK MCDM [14], [15], [16] and ontology [17], [18], [19] has been used for rule-based network management and control independently. To the best of our knowledge, there is no reported work that uses MCDM in coordination with ontology for dynamic network management.…”