Active networking for TCP over wireless

  • Authors:
  • Seong-Kyu Song;Scott M. Nettles

  • Affiliations:
  • Electrical and Computer Engineering Department, The University of Texas at Austin;Electrical and Computer Engineering Department, The University of Texas at Austin

  • Venue:
  • IWAN'04 Proceedings of the 6th IFIP TC6 international working conference on Active networks
  • Year:
  • 2004

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Abstract

TCP assumes that packet losses are due to congestion. Unfortunately, for the increasingly common case of wireless last hops, this may not be the case. The result is poor TCP performance. There has been significant research into this problem, but the solutions either require widespread changes to the network, or are architecturally limited. Network evolution of this sort is exactly the target of Active Networking (AN). We claim that if some network nodes were AN capable, the range of feasible and deployable solutions to this problem would be greatly increased.We support our claim by presenting a model and architecture of how AN might be deployed to address this problem. We then use this model and architecture to motivate a series of concrete implementations that address various aspects of the problem. These include an implementation of adaptive link control and of the Snoop protocol.