Quality of Experience management framework for real-time multimedia applications

Abstract

Real-time multimedia will be among the most important applications in next generation networks. However, efficiently managing the delivery of these applications to guarantee Quality of Experience (QoE) to end-users facing network resources limitation and heterogeneity of networks is a challenge. This paper first explores key requirements to provide QoE assurance for multimedia applications in Content Distribution Networks (CDN). A new management framework, named QoE-aware Real-time Multimedia Management (QoE2M), is then introduced to provide end-to-end quality control on real-time multimedia applications over heterogeneous networks based on a combined control of video assessment, Quality of Service (QoS) and QoE-based mapping and adaptation procedures. Validation of the QoE2M framework is also discussed.

Mediating Multimedia Traffic with Strict Delivery Constraints

“…The real-time traffic imposes a tight upper limit for its delivery time ∆ and the residual error loss rate P target at the receiver. To achieve the desired quality of experience (QoE) [22] both constraints must be completely satisfied. One of the following error correction schemes forward error correction (FEC), automatic repeat request (ARQ) or hybrid error-correction (HEC) is applied for data protection.…”

Discrete quality assessment in IPTV content distribution networks

“…Several signalling management schemes such as next steps in signaling (NSIS) have been proposed in the past for QoE measurement and management as summarised in [34,35]. Signalling protocols are commonly customised according to the specific network and service infrastructure.…”

QoS adaptation in inter-domain services

“…In [13], the authors present a framework called Quality of which contain information about different versions of the services that can be used according to the user preferences (the client profile can be considered as an instance of a user preference). By using this information, the QMO is able to change from one service version to another in the case an event occurs.…”