A new approach to improving end-to-end TCP enhancement schemes over mixed wired/wireless networks

Chi Chung Cheung

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


Various transmission control protocol (TCP) enhancement schemes have been proposed to improve TCP performance over mixed wired/wireless networks. Among the different kinds of TCP enhancement schemes, end-to-end TCP enhancement schemes have the lowest implementation complexity and do not violate the semantics of TCP. A general principle of these end-to-end TCP enhancement schemes is to distinguish wireless loss from congestion loss, and to take the cause of the loss into consideration when performing TCP congestion control. However, they do not consider the ratio of congestion losses to wireless losses which significantly affects their performance, mainly in terms of their throughputs. In this paper, a new approach has been developed to address this issue. To apply the approach into an end-to-end TCP enhancement scheme, the ratio of congestion losses to wireless losses are estimated and the parameters used in the scheme are adjusted to further improve its performance. The simulation experiments showed that Veno, a popular end-to-end TCP enhancement scheme, with the new approach always outperformed the original Veno in terms of throughput and fairness, and their differences could be more than two times better. Note that this new approach can generally be applied to many other existing end-to-end TCP enhancement schemes, with minimal implementation costs.

Original languageEnglish
Title of host publication2008 International Conference on Telecommunications, ICT
Publication statusPublished - 16 Jun 2008
Event2008 International Conference on Telecommunications, ICT - St. Petersburg, Russian Federation
Duration: 16 Jun 200819 Jun 2008

Publication series

Name2008 International Conference on Telecommunications, ICT


Conference2008 International Conference on Telecommunications, ICT
Country/TerritoryRussian Federation
CitySt. Petersburg


  • Congestion control
  • Congestion loss
  • Random loss
  • Transmission control protocol (TCP)
  • Wireless access networks
  • Wireless TCP enhancements

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing
  • Electrical and Electronic Engineering

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