Detecting spatial congestion in multihop wireless networks

Joo Changhee, Saewoong Bahk, Kim Hyogon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

While TCP is highly successful in the wire-line Internet, its performance fast degrades as the number of hops increases in multihop wireless networks. It is due to not only the half-duplex nature of the wireless medium, but also the congestion spreading phenomenon. Congestion in one wire-less link spreads over space rather than localized to a link, causing interference to packet transmissions on neighboring links. Therefore, the space-shared feature of multihop wire-less network makes congestion control different from that in wired networks. Since TCP often errs in estimating congestion level due to the wireless interference, it can overly inflate the transmission window and blast packets into the network, resulting in high level of congestion. We propose a novel algorithm to detect congestion in multihop wireless networks, which enables TCP to adjust the window size precisely. Performance evaluation through simulations confirms the advantage of our proposal in detecting spatial congestion in multihop wireless networks.

Original languageEnglish
Title of host publicationIWCMC 2006 - Proceedings of the 2006 International Wireless Communications and Mobile Computing Conference
Pages509-514
Number of pages6
DOIs
Publication statusPublished - 2006 Dec 1
EventIWCMC 2006 - 2006 International Wireless Communications and Mobile Computing Conference - Vancouver, BC, Canada
Duration: 2006 Jul 32006 Jul 6

Publication series

NameIWCMC 2006 - Proceedings of the 2006 International Wireless Communications and Mobile Computing Conference
Volume2006

Other

OtherIWCMC 2006 - 2006 International Wireless Communications and Mobile Computing Conference
CountryCanada
CityVancouver, BC
Period06/7/306/7/6

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Keywords

  • Congestion control
  • MAC
  • Multihop wireless networks

ASJC Scopus subject areas

  • Engineering(all)
  • Computer Networks and Communications
  • Computer Science Applications
  • Software

Cite this

Changhee, J., Bahk, S., & Hyogon, K. (2006). Detecting spatial congestion in multihop wireless networks. In IWCMC 2006 - Proceedings of the 2006 International Wireless Communications and Mobile Computing Conference (pp. 509-514). (IWCMC 2006 - Proceedings of the 2006 International Wireless Communications and Mobile Computing Conference; Vol. 2006). https://doi.org/10.1145/1143549.1143651