Constrained TCP-Friendly Congestion Control for Multimedia Communication

  • Authors:
  • Dorgham Sisalem;Adam Wolisz

  • Affiliations:
  • -;-

  • Venue:
  • COST 263 Proceedings of the Second International Workshop on Quality of Future Internet Services
  • Year:
  • 2001

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Abstract

An often discussed approach for reducingo verload 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 adaptingthe transmission rate of multimedia senders in a TCP-friendly way and at the same time takes the restrictions imposed by the source into account. Usingsim ulations we investigate the performance of this approach in terms of bandwidth utilization, stability and fairness.