Imagine a scenario in which STAs from different providers contend for the bandwith of a single AP. Our reasoning is that the BE downlink traffic will dominate, since P2P and other symmetrical BE applications are not so popular as web browsing or media downloading in wifi scenarions.
802.11e provides us with the tools to control the uplink traffic, by assigning different EDCA parameters to each contending STA. And the one-million-dollar-question is... "Is this uplink control enough to control downlink flows as well".
TCP might help us in that direction, but we will need to simulate to find out... Teach me NS2!
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