Performance Improvement of TCP Vegas over Heterogeneous Networks

  • Authors:
  • Yi-Cheng Chan;Chia-Tai Chan;Yaw-Chung Chen

  • Affiliations:
  • -;-;-

  • Venue:
  • ICDCSW '04 Proceedings of the 24th International Conference on Distributed Computing Systems Workshops - W7: EC (ICDCSW'04) - Volume 7
  • Year:
  • 2004

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Abstract

Current IP network has become the dominant paradigmfor all networking environments. The signi.cant cause ofpacket losses in such heterogenous networks is no longerlimited to network congestion. Traditional TCP interpretsevery packet loss as caused by congestion which may benot the case in the current Internet. Misinterpretation ofwireless random loss as an indication of network congestionresults in TCP slowing down its sending rate unnecessarily.In this paper, we propose a new variant of TCPVegas named RedVegas. By using the innate nature of Vegasand congestion indications marked by routers, RedVegasmay detect random packet losses precisely. Through thepacket loss differentiation, RedVegas reacts appropriately tothe losses, and therefore the throughput of connection overheterogeneous networks can be signi.cantly improved.