Several studies have recently been performed on wireless university campus networks, corporate and public networks. Yet little is known about the flow-level characterization in such networks. This paper statistically characterizes both static flows and roaming flows in a large campus wireless network using a recently-collected trace. For static flows, it takes a two-tier approach to characterizing the flow arrivals, which results a Weibull regression model. This paper further discovers that the static flow arrivals in spatial proximity show strong similarity. As for roaming flows, they can also be well characterized statistically. This paper explains the results by user behaviors and application demands, and further cross-validate the modeling results by three other traces.
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