eHSTCP: enhanced congestion control algorithm of TCP over high-speed networks

  • Authors:
  • Young-Soo Choi;Hee-Dong Park;Sung-Hyup Lee;You-Ze Cho

  • Affiliations:
  • School of Electrical Engineering and Computer Science, Kyungpook National University, Korea;School of Electrical Engineering and Computer Science, Kyungpook National University, Korea;School of Electrical Engineering and Computer Science, Kyungpook National University, Korea;School of Electrical Engineering and Computer Science, Kyungpook National University, Korea

  • Venue:
  • IWDC'05 Proceedings of the 7th international conference on Distributed Computing
  • Year:
  • 2005

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Abstract

Current TCP congestion control can be inefficient and unstable in high-speed wide area networks due to its slow response with a large congestion window. Several congestion control proposals have already been suggested to solve these problems and two properties have been considered: TCP friendliness and scalability, to ensure that a protocol does not take away too much bandwidth from TCP, while utilizing a bandwidth of high speed networks efficiently. In this paper, we propose a new variant of TCP for a high-speed network which combines delay-based congestion control with loss-based congestion control. Our simulation results show that proposed scheme performs better than the existing high-speed TCP protocols in terms of fairness, stability and scalability, while providing friendliness at the same time.