Video-on-demand QoE Evaluation Across Different Age- Groups and Its Significance for Network Capacity

Roshan, Mujtaba and Schormans, John A. and Ogilvie, Rupert (2018) Video-on-demand QoE Evaluation Across Different Age- Groups and Its Significance for Network Capacity. EAI Endorsed Transactions on Mobile Communications and Applications, 3 (9): e5. ISSN 2032-9504

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Quality of Experience (QoE) drives churn in the broadband networks industry, and good QoE plays a large part in the retention of customers. QoE is known to be affected by the Quality of Service (QoS) factors packet loss probability (PLP), delay and delay jitter caused by the network. Earlier results have shown that the relationship between these QoS factors and QoE is non-linear, and may vary from application to application. We use the network emulator Netem as the basis for experimentation, and evaluate how QoE varies as we change the emulated QoS metrics. Focusing on Video On Demand we discovered that the reported QoE may differ widely for users of different age groups, and that the most demanding age group (the youngest) can require an order of magnitude lower PLP to achieve the same QoE than is required by the most widely studied age group of users. We then used a bottleneck TCP model to evaluate the capacity cost of achieving an order of magnitude decrease in PLP, and found it be (almost always) a 3-fold increase in link capacity that was required.

Item Type: Article
Uncontrolled Keywords: quality of experience, quality of service, packet loss probability, network capacity
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
QA75 Electronic computers. Computer science
Depositing User: EAI Editor II.
Date Deposited: 08 Oct 2020 13:51
Last Modified: 08 Oct 2020 13:51

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