A technique of adaptive bandwidth estimation for SACK-based TCP over wireless networks

Takayuki Sasaki, Hiroshi Tsunoda, Kohei Ohta, Nei Kato, Yoshiaki Nemoto

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

With the recent development of mobile equipment, the use of the Internet in wireless environment has been increasing. However, TCP was originally designed for cable transmission. In the wireless environment, the system is affected by random error and burst error and cannot fully utilize the available bandwidth. Thus, it is necessary to investigate the design of TCP for the wireless environment. This paper is based on a combination of SACK and TCP-Westwood rate estimation. Performance is improved after a slow start by applying bandwidth estimation. By redefining the minimum value for RTT, the friendliness with existing TCP is also improved in environments unfavorable to TCP-Westwood. Thus, the proposed improvement of TCP has high friendliness with the existing TCP and also realizes efficient communication in the wireless environment.

Original languageEnglish
Pages (from-to)32-43
Number of pages12
JournalElectronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi)
Volume88
Issue number11
DOIs
Publication statusPublished - 2005 Nov 1

Keywords

  • Friendliness
  • SACK
  • TCP
  • Tcp-westwood
  • Wireless network

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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