Channel occupancy time based TCP rate control for IEEE 802.11 DCF

Kenichi Kashibuchi, Tarik Taleb, Yoshiaki Nemoto, Nei Kato

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

3 Citations (Scopus)

Abstract

In multi-rate IEEE 802.11 wireless LAN, when multiple stations transmit frames at different data rates, the basic service set (BSS) suffers from "performance anomaly" problem. In this paper, to solve this issue, we propose a TCP rate control scheme for IEEE 802.11 DCF mode. In the proposed scheme, a TCP sender controls its maximum window size based on the throughput estimated at the TCP layer. The throughput estimation is based on the number of active stations and the channel occupancy time used by each station in the BSS, which are monitored at the MAC layer. The proposed scheme forms a cross layer approach involving both MAC and TCP layers. The performance of the proposed scheme over adaptive multi-rate IEEE 802.11 wireless LAN is evaluated and compared with that of standard TCP through several simulations. The simulation results show that the proposed scheme improves the aggregate throughput in the BSS and reduces packet drops at the TCP layer. The proposed scheme also exhibits fairness in terms of channel occupancy time among the competing stations.

Original languageEnglish
Title of host publicationIWCMC 2008 - International Wireless Communications and Mobile Computing Conference
Pages932-937
Number of pages6
DOIs
Publication statusPublished - 2008
EventInternational Wireless Communications and Mobile Computing Conference, IWCMC 2008 - Crete, Greece
Duration: 2008 Aug 62008 Aug 8

Publication series

NameIWCMC 2008 - International Wireless Communications and Mobile Computing Conference

Other

OtherInternational Wireless Communications and Mobile Computing Conference, IWCMC 2008
CountryGreece
CityCrete
Period08/8/608/8/8

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Software
  • Electrical and Electronic Engineering

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