Mechanisms for QoE optimisation of Video Traffic: A review paper

Abstract

Transmission of video traffic over the Internet has grown exponentially in the past few years<br>with no sign of waning. This increasing demand for video services has changed user expectation of quality. Various mechanisms have been proposed to optimise the Quality of Experience (QoE) of end users’ video. Studying these approaches are necessary for new methods to be proposed or combination of existing ones to be tailored. We discuss challenges facing the optimisation of QoE for video traffic in this paper. It surveys and classifies these mechanisms based on their functions. The limitation of each of them is identified and future directions are highlighted.

Delivering User Experience over Networks: Towards a Quality of Experience Centered Design Cycle for Improved Design of Networked Applications

“…This paradigm shift led to the advent of so called QoE studies, i.e., studies about the impact of technical parameters of systems and networks on the experience of end users, which has produced an enormous amount of findings. The results of these studies are considered by network operators to avoid QoE degradation and improve the experience with a networked application by traffic management, e.g., [10,11]. By also considering these findings of the QoE community during the development of new or improved applications, QoE degradation due to network issues or fluctuating network conditions can be mitigated by design, which will positively affect the user experience.…”

“…These models prove useful for network operators in the QoE-aware traffic management cycle [8], in which the QoE of a networked application is monitored using dedicated models, e.g., [9]. When QoE degradation is detected or imminent, traffic management actions are applied in the network to mitigate the QoE degradation, e.g., [10,11].…”