Mobile communication is often frustratingly slow. When a user encounters poor performance, and perhaps even "confirms" the same by running a speed test, the tendency is to ascribe blame to the user's last-mile provider. However, as we argue in this paper, a more nuanced approach is needed to identify the location of the bottleneck responsible for the poor performance. Specifically, we focus on the question of whether the bottleneck lies in the cellular last hop (3G or LTE link) or elsewhere in the WAN path.
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Baranasuriya et al. (2015) studied this question.
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