QoE: A Micro and Macro Perspective
نویسندگان
چکیده
Quality of experience (QoE) takes a user-focused view of the Internet experience, derived from lower-layer metrics like quality of service, reliability and usability, measuring ”the difference between what a customer expected, and what they actually received.” (FY/c) QoE can be usefully divided into a micro and macro aspect, covering the individualized and often shortterm experience of an individual Internet user, and the aggregate QoE across a service territory, country or region. Just as macroeconomics builds on the aggregate behavior of households and firms, macro-QoE can usefully build on micro-QoE. We believe that QoE-related research must be both descriptive and actionable, that is, allow users to determine the source of QoE problems, identify the responsible part of the network and, where possible, take corrective action. Often, for both residential and enterprise users, the first question to be answered is: “Is it just me?” At the macro level, the question turns to the diagnosis of wholesale infrastructure disruption, policy and economic failures or successes. We present two examples that address both the “micro” and “macro” aspects. Our DYSWIS (Do You See What I See) prototype allows end users to detect and isolate QoE impairment, while our YouSlow [1] project uses application behavior to diagnose local problems and to establish the correlation between low-level network metrics and user behavior.
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تاریخ انتشار 2015