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Mittwoch, 26 Oktober 2016 14:23

Definition of QoE Fairness in Shared Systems

Article published in the IEEE Communications Letters, Volume 21.

Authors: Hossfeld, Tobias; Skorin-Kapov, Lea; Heegaard, Poul E.; Varela, Martín

Abstract: User-centric service and application management focuses on the Quality of Experience (QoE) as perceived by the end user. Thereby, the goal is to maximize QoE while ensuring fairness among users, e.g., for resource allocation and scheduling in shared systems. Although the literature suggests to consider consequently QoE fairness, there is currently no accepted definition of QoE fairness. The contribution of this paper is the definition of a generic QoE fairness index F which has desirable key properties as well as the rationale behind it. By using examples and a measurement study involving multiple users downloading web content over a bottleneck link, we differentiate the proposed index from QoS fairness and the widely used Jain’s fairness index. Based on results, we argue that neither QoS fairness nor Jain’s fairness index meet all of the desirable QoE-relevant properties which are met by F. Consequently, the proposed index F may be used to compare QoE fairness across systems and applications, thus serving as a benchmark for QoE management mechanisms and system optimization.

Index Terms: Quality of Experience (QoE), Quality of Service (QoS), Fairness, Fairness Index

Reference: Hossfeld, Tobias; Skorin-Kapov, Lea; Heegaard, Poul E.; Varela, Martín: Definition of QoE Fairness in Shared Systems. In: IEEE Communications Society; Institute of Electrical and Electronics Engineers, Institute of Electrical and Electronics Engineers (Hrsg.): IEEE Communications Letters, Volume: 21. 2016. doi:10.1109/LCOMM.2016.2616342

Von: Schönherr, Chris