SCTP multihoming provisioning in converged IP-based multimedia environment
Computer Communications
An approach to modeling and control of QoE in next generation networks
IEEE Communications Magazine
Reliable service provisioning in converged multimedia network environment
Journal of Network and Computer Applications
IPTV architecture for an IMS environment with dynamic QoS adaptation
Multimedia Tools and Applications
Consistent-degradation macroblock grouping for parallel video streams over DiffServ networks
Computer Communications
Information Systems Frontiers
Assisted living solutions for the elderly through interactive TV
Multimedia Tools and Applications
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IPTV represents a solution for interactive television-like services. As the NGN has gained attention for the IP multimedia service delivery platform, IPTV has been recognized as the way to provide the key value-added services. However, IPTV differs from typical NGN-based voice and data services by the fact that it combines three conceptually unfamiliar (until now) components: streamed video, Web services, and NGN-based service control. Another difference is in the sense of the quality-assured service delivery that in the case of IPTV is much stricter for two reasons: it is more challenging to meet an end user's satisfaction in the case of television services, and there are issues of quality- assured provisioning of real-time multimedia services in an environment that is best-effort in its nature. In this article, possible approaches to NGN- based IPTV services assurance are presented from the QoE and QoS viewpoints. Current environments and an overview of the standardization efforts are given. A proposal for a fully NGN-integrated quality-assured IPTV provisioning model is presented with an associated converged profile structure. The service-aware quality assurance approach is argued. The article investigates further NGN service delivery enhancements for quality-assured provisioning of IPTV services that until now remained unresolved. The objective of this article is to present the design of a realistic quality assurance model, establish the associated framework for NGN-based IPTV services delivery, and contribute to discussions and research activities. At the same time, the conclusions and the proposed models will serve as a framework for future efforts in our laboratory NGN testbed.