Blar i NTNU Open på forfatter "Hossfelt, Tobias"

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    • A new QoE fairness index for QoE management 

      Hossfelt, Tobias; Skorin-Kapov, Lea; Heegaard, Poul Einar; Varela, Martin (Journal article; Peer reviewed, 2018)
      The user-centric management of networks and services focuses on the Quality of Experience (QoE) as perceived by the end user. In general, the goal is to maximize (or at least ensure an acceptable) QoE, while ensuring ...

    • Definition of QoE Fairness in Shared Systems 

      Hossfelt, Tobias; Skorin-Kapov, Lea; Heegaard, Poul Einar; Varela, Martin (Journal article; Peer reviewed, 2016)
      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 ...

    • Modeling of aggregated IoT traffic and its application to an IoT cloud 

      Metzger, Florian; Hossfelt, Tobias; Bauer, André; Kounev, Samuel; Heegaard, Poul Einar (Journal article; Peer reviewed, 2019)
      As the Internet of Things (IoT) continues to gain traction in telecommunication networks, a very large number of devices are expected to be connected and used in the near future. In order to appropriately plan and dimension ...

    • No Silver Bullet: QoE Metrics, QoE Fairness, and User Diversity in the Context of QoE Management 

      Hossfelt, Tobias; Skorin-Kapov, Lea; Heegaard, Poul Einar; Varela, Martin (Chapter, 2017)
      Managing QoE is one of the most interesting direct applications of workable QoE models. Indeed, being able to predict how users perceive the quality of a service allows the service provider(s) to optimize its delivery, ...

    • On Additive and Multiplicative QoS-QoE Models for Multiple QoS Parameters 

      Hossfelt, Tobias; Skorin-Kapov, Lea; Heegaard, Poul Einar; Varela, Martin; Chen, Kuan-ta (Chapter, 2016)
      Generic relationships between QoE and QoS have been inten- sively discussed in literature for single QoS parameters and often found to be logarithmic or exponential. While there are many experimental studies investigating ...

    • Optimal Fairness and Quality in Video Streaming with Multiple Users 

      Moldovan, Christian; Skorin-Kapov, Lea; Heegaard, Poul Einar; Hossfelt, Tobias (Chapter, 2018)
      With the majority of video distribution services relying on the HTTP adaptive streaming paradigm, a great deal of research is geared towards developing algorithms and solutions for improving user perceived quality while ...

    • QoE Beyond the MOS: An In-Depth Look at QoE via Better Metrics and their Relation to MOS 

      Hossfelt, Tobias; Heegaard, Poul Einar; Varela, Martin; Möller, Sebastian (Journal article; Peer reviewed, 2016)
      While Quality of Experience (QoE) has advanced very significantly as a field in recent years, the methods used for analyzing it have not always kept pace. When QoE is studied, measured or estimated, practically all the ...

    • Traffic modeling for aggregated periodic IoT data 

      Hossfelt, Tobias; Metzger, Florian; Heegaard, Poul Einar (Chapter, 2018)
      The Internet of Things (IoT) is emerging in the telecommunication sector, and will bring a very large number of devices that connect to the Internet in the near future. The expected growth in such IoT nodes necessitates ...

    • Video QoE Killer and Performance Statistics in WebRTC-based Video Communication 

      Ammar, Doreid; De Moor, Katrien; Hossfelt, Tobias; Fiedler, Markus; Heegaard, Poul Einar; Xie, Min (Chapter, 2016)
      Abstract: In this paper, we investigate session-related performance statistics of a Web-based Real-Time Communication (WebRTC) application called appear.in. We explore the characteristics of these statistics and explore ...