Performance evaluation of threshold-based control mechanism for Vegas TCP in heterogeneous cloud networks

Rung Shiang Cheng, Ming-Yi Shih, Chih Chun Yang

Research output: Contribution to journalArticle

7 Citations (Scopus)


Many studies have shown that Vegas TCP has a better throughput and stability than Reno TCP in homogeneous networks with a single TCP flavour, but performs less well in heterogeneous networks in which two-TCP flavours coexist. The progressive behaviour of Reno TCP and the conservative behaviour of Vegas TCP cause a bias when they are used simultaneously, and thus, Vegas TCP fails to obtain a fair share of the bandwidth. This paper examines the origins of this bias and proposes a threshold-based congestion control mechanism designed to alleviate the resulting unfairness problem. The simulation results show that the proposed scheme achieves a higher throughput than the conventional Vegas TCP scheme and preserves the stability of the conventional scheme when used in heterogeneous cloud networks.

Original languageEnglish
Pages (from-to)202-209
Number of pages8
JournalInternational Journal of Internet Protocol Technology
Issue number4
Publication statusPublished - 2010 Mar 1


All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

Cite this