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Constrained TCP-Friendly Congestion Control for Multimedia Communication
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Constrained TCP-Friendly Congestion Control for Multimedia Communication
Dorgham Sisalem5  and A. Wolisz6
| (5) |
GMD FOKUS, Berlin, Germany |
| (6) |
TU Berlin/GMD Fokus, Berlin, Germany |
Abstract
An often discussed approach for reducing overload situations in the network,is to adjust the transmission rate of the sender
in accordance with the loss and delay state of the network. However, especially for the case of audio and video communication
it is often the case, that the used compression style, application or the user might impose strict limitations as to the maximum
and minimum transmission rates, the granularity with which the sender can change its transmission rate and the frequency with
which such changes should occur.
In this paper, we present a generic model for describing a constrained multimedia source. Additionally, we describe a control
framework called constrained TCP-friendly adaptation framework (CTFAF). CTFAF incorporates the proposed generic multimedia
model with TCP-friendly adaptation schemes and hence allows for adapting the transmission rate of multimedia senders in a
TCP-friendly way and at the same time takes the restrictions imposed by the source into account. Using simulations we investigate
the performance of this approach in terms of bandwidth utilization, stability and fairness.
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