Performance analysis and improvement of TCP proxy mechanism in TCP overlay networks

Ichinoshin Maki, Go Hasegawa, Masayuki Murata, Tutomu Murase

Research output: Contribution to journalConference articlepeer-review

17 Citations (Scopus)


TCP overlay networks that control data transmission quality at the transport layer are being paid a lot of attentions as users' demands for diversified Internet services increase. They are expected to enhance the end-to-end throughput of the TCP connection essentially because the round trip times and the packet loss ratios of each split TCP connection are reduced. However, performance degradation may occur due to undesired interactions among the split TCP connections. In this paper, we introduce an analysis approach to estimate end-to-end throughput of data transmission with a TCP proxy mechanism considering of performance degradation. Our analysis results revealed that we confirmed the effect of the TCP proxy mechanism. We also found that we cannot ignore performance degradations due to interactions among split TCP connections especially when the congestion level of the network they traverse is small. Further, we clarified that we should take into account the packet loss ratios, performance degradations and propagation delays of the network when we consider the issue relating to the design of TCP overlay networks.

Original languageEnglish
Pages (from-to)184-190
Number of pages7
JournalIEEE International Conference on Communications
Publication statusPublished - 2005 Sep 15
Externally publishedYes
Event2005 IEEE International Conference on Communications, ICC 2005 - Seoul, Korea, Republic of
Duration: 2005 May 162005 May 20

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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