Methods for restoring MAC layer fitness in IEEE 802.11 networks with physical layer capture

Sachin Ganu, Kishore Ramachandran, Marco Gruteser, Ivan Seskar, Jing Deng

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

40 Scopus citations

Abstract

In this paper, we experimentally investigate the physical layer capture effect in off-the-shelf 802.11 network cards and confirm that it reduces throughput fairness of traffic flows. We then study the feasibility of using the following PHY and MAC layer approaches to mitigate the disproportionate allocation of throughput in capture dominated scenarios: transmit power control, retransmission limits, CWmin adjustment, TxOp adjustment, and AIFS control. The results obtained on the ORBIT indoor wireless testbed 1 show that the 802.11e EDCF parameters provide the most fine-grained control of fairness.

Original languageEnglish (US)
Title of host publicationREALMAN 2006 - Proceedings of Second International Workshop on Multi-hop Ad Hoc Networks
Subtitle of host publicationfrom Theory to Reality
Pages7-14
Number of pages8
StatePublished - 2006
EventREALMAN 2006 - 2nd International Workshop on Multi-hop Ad Hoc Networks: from Theory to Reality - Florence, Italy
Duration: May 26 2006May 26 2006

Publication series

NameREALMAN 2006 - Proceedings of Second International Workshop on Multi-hop Ad Hoc Networks: from Theory to Reality
Volume2006

Other

OtherREALMAN 2006 - 2nd International Workshop on Multi-hop Ad Hoc Networks: from Theory to Reality
Country/TerritoryItaly
CityFlorence
Period5/26/065/26/06

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Keywords

  • Capture effect
  • EDCF
  • Experimental evaluation
  • Fairness
  • Wireless Networks

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