An accurate Markov model for slotted CSMA/CA algorithm in IEEE 802.15.4 networks

Jianhua He, Zuoyin Tang, Hsiao Hwa Chen (Lead / Corresponding author), Shu Wang

Research output: Contribution to journalArticle

35 Citations (Scopus)


In this letter we propose an Markov model for slotted CSMA/CA algorithm working in a non-acknowledgement mode, specified in IEEE 802.15.4 standard. Both saturation throughput and energy consumption are modeled as functions of backoff window size, number of contending devices and frame length. Simulations show that the proposed model can achieve a very high accuracy (less than 1% mismatch) if compared to all existing models (bigger than 10% mismatch).

Original languageEnglish
Pages (from-to)420-422
Number of pages3
JournalIEEE Communications Letters
Issue number6
Publication statusPublished - 1 Jun 2008



  • IEEE 802.15.4
  • MAC
  • Slotted CSMA/CA

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