Beyond the Model of Persistent TCP Flows: Open-Loop vs Closed-Loop Arrivals of Non-Persistent Flows
It is common for simulation and analytical studies to model Internet traffic as an aggregation of mostly persistent TCP flows. In practice, however, flows follow a heavy-tailed size distribution and their number fluctuates significantly with time. One important issue that has been largely ignored is whether such non-persistent flows arrive in the network in an open-loop (say Poisson) or closed-loop (interactive) manner. This paper focuses on the differences that the TCP flow arrival process introduces in the generated aggregate traffic.