articleIEEE/ACM Transactions on NetworkingFeb 1, 2007Closed access

Modeling the 802.11 Distributed Coordination Function in Nonsaturated Heterogeneous Conditions

DMDavid MaloneKRKen R. DuffyDJDouglas J. Leith

National University of Ireland, Maynooth

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Abstract

Abstract — Analysis of the 802.11 CSMA/CA mechanism has received considerable attention recently. Bianchi [1] presents an analytic model under a saturated traffic assumption. Bianchi’s model is accurate, but typical network conditions are nonsaturated. We present an extension of his model to a nonsaturated environment. Its predictions are validated against simulation and are found to accurately capture many interesting features of non-saturated operation. Index Terms — Wireless LAN, IEEE 802.11 MAC, nonsaturated traffic, performance evaluation.

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Topics & keywords

Topics
Keywords
  • Computer science
  • Distributed coordination function
  • Computer network
  • Function (biology)
  • Wireless lan
  • Distributed computing
  • Telecommunications
  • IEEE 802.11
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