Theoretic analysis of IEEE 802.11 rate adaptation algorithm sampleRate

Jianhua He, Wenyang Guan, Lin Bai, Kai Chen

    Research output: Contribution to journalArticlepeer-review

    8 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


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

    ASJC Scopus subject areas

    • Modelling and Simulation
    • Computer Science Applications
    • Electrical and Electronic Engineering


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