Theoretic analysis of IEEE 802.11 rate adaptation algorithm sampleRate

Jianhua He, Wenyang Guan, Lin Bai, Kai Chen

Research output: Contribution to journalArticle

6 Citations (Scopus)


In this paper we investigate rate adaptation algorithm SampleRate, which spends a fixed time on bit-rates other than the currently measured best bit-rate. A simple but effective analytic model is proposed to study the steady-state behavior of the algorithm. Impacts of link condition, channel congestion and multi-rate retry on the algorithm performance are modeled. Simulations validate the model. It is also observed there is still a large performance gap between SampleRate and optimal scheme in case of high frame collision probability.

Original languageEnglish
Article number5738918
Pages (from-to)524-526
Number of pages3
JournalIEEE Communications Letters
Issue number5
Publication statusPublished - 24 Mar 2011



  • IEEE 802.11
  • link adaptation
  • Markov chain
  • multiple access control
  • performance modeling

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