Research Article

An Internet friendly transport protocol for continuous media over best effort networks

  1. Hala ElAarag1,*,
  2. Mostafa Bassiouni2

Article first published online: 6 JAN 2003

DOI: 10.1002/dac.570

Issue

International Journal of Communication Systems

International Journal of Communication Systems

Volume 15, Issue 10, pages 881–898, December 2002

Additional Information

How to Cite

ElAarag, H. and Bassiouni, M. (2002), An Internet friendly transport protocol for continuous media over best effort networks. Int. J. Commun. Syst., 15: 881–898. doi: 10.1002/dac.570

Author Information

  1. 1

    Department of Mathematics & Computer Science, Stetson University, DeLand, FL 32723, U.S.A.

  2. 2

    School of Electrical Engineering & Computer Science, University of Central Florida, Orlando, FL 32816, U.S.A.

*Department of Mathematics & Computer Science, Stetson University, DeLand, FL 32723, U.S.A.

Publication History

  1. Issue published online: 6 JAN 2003
  2. Article first published online: 6 JAN 2003
  3. Manuscript Accepted: 14 OCT 2002
  4. Manuscript Revised: 24 SEP 2002
  5. Manuscript Received: 3 NOV 2001

Funded by

  • NSF. Grant Number: 0086251
  • ARO

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Keywords:

  • congestion control;
  • TCP-friendly protocols;
  • best effort networks;
  • media streaming;
  • differentiated services;
  • network simulation;
  • Internet health

Abstract

In this paper, we design and evaluate an Internet friendly transport-level protocol (IFTP) for solving the TCP-friendly problem. IFTP has two modes of operation. In the standard mode, the IFTP connection faithfully emulates the behaviour of TCP in order to roughly obtain a bandwidth equal to that of a TCP connection. In the extended mode, a simple modification is used to grant QoS-differentiated services to selected connections. Connections running in the extended mode can get enhanced bandwidth while still emulating the general behaviour of TCP. We develop an analytical model for the congestion control mechanism of IFTP. We also derive analytically the amount of bandwidth that IFTP may be able to claim from TCP in ideal and non-ideal environments. We evaluate IFTP through simulation and prove its TCP friendliness as well as provide performance results on some of the important metrics such as packet delay, delay jitter, packet loss and link utilization. Copyright © 2002 John Wiley & Sons, Ltd.

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