  Traditionally TCP bandwidth sharing has been investigated mainly by
stochastic approaches due to its seemingly chaotic nature. Even though of great
generality, the theories deal mainly with expectation values, which is prone to
misinterpretation with respect to the Quality-of-Experience (QoE). We
disassemble TCP operating conditions into dominating scenarios and show that
bandwidth sharing alone follows mostly deterministic rules. From the analysis
we derive significant root causes of well-known TCP aspects like unequal
sharing, burstiness of losses, global synchronization, and on buffer sizing. We
base our model on a detailed analysis of bandwidth sharing experiments with
subsequent mathematical reproduction.
