Access delay analysis of IEEE 802.11 DCF in the presence of hidden stations

Fu Yi Hung, Ivan Marsic

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

14 Scopus citations

Abstract

In this paper, we present an analytical model to evaluate the hidden station effect on the access delay of the IEEE 802.11 Distributed Coordination Function (DCF) in both non-saturation and saturation condition. DCF is a random channel-access scheme based on Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) method and the exponential backoff procedure to reduce packet collisions. However, hidden stations still cause many collisions under CSMA/CA method because stations cannot sense each other's transmission and often send packets concurrently, resulting in significant performance degradation. Prior research has built accurate access delay model for 802.11 DCF. However, the hidden station effect on the performance has not been adequately studied. Our model generalizes the existing work on access delay modeling of 802.11 DCF for both non-saturation and saturation conditions, under the hidden-station effect. The performance of our model is evaluated by comparison with ns-2 simulations and they are found to agree.

Original languageEnglish (US)
Title of host publicationIEEE GLOBECOM 2007 - 2007 IEEE Global Telecommunications Conference, Proceedings
Pages2541-2545
Number of pages5
DOIs
StatePublished - 2007
Event50th Annual IEEE Global Telecommunications Conference, GLOBECOM 2007 - Washington, DC, United States
Duration: Nov 26 2007Nov 30 2007

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference

Other

Other50th Annual IEEE Global Telecommunications Conference, GLOBECOM 2007
Country/TerritoryUnited States
CityWashington, DC
Period11/26/0711/30/07

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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