EVA: A better TCP version for resource-insufficient networks

Jung-Shian Li, Chung Wen Ma

Research output: Contribution to journalArticlepeer-review


TCP Vegas exhibits unfair congestion avoidance mechanism, which aggravates when there are insufficient network resources to accommodate buffer space of a pipe (bandwidth delay product). To remedy this shortcoming, we propose an Enhanced VegAs (EVA) that employs three auxiliary mechanisms: Δ revision, congestion detection and congestion tendency detection. A 2k factorial design with replications is used to study the effect of the three mechanisms. Our results show that TCP EVA achieves better performance than Vegas under various network conditions. Furthermore, congestion avoidance schemes, such as TCP EVA, perform much better than congestion control schemes, such as TCP Reno, in resource-insufficient networks.

Original languageEnglish
Pages (from-to)593-606
Number of pages14
JournalInternational Journal of Communication Systems
Issue number7
Publication statusPublished - 2002 Sep 1

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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