Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2011, Vol. 34 ›› Issue (4): 101-104.doi: 10.13190/jbupt.201104.101.147

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Service Status of DCF Model in IEEE 802.11 Wireless Network

  

  • Received:2010-11-18 Revised:2011-03-26 Online:2011-08-28 Published:2011-07-18
  • Contact: Da-Peng WU E-mail:wudapengphd@gmail.com
  • Supported by:

    国家自然科学基金项目(61001105); 重庆市教委项目(KJ100521)

Abstract:

For the distributed coordination function (DCF) defined in the IEEE 80211 standard, the nodes is obtained an access rights to the wireless medium by contention method. As a result, the service time of the data frame becomes larger than the transmission time. Based on analysis of the transition between the status of frame transmitting, frame collision and idle, the medium status can be described by the binomial distribution; moreover, the service time for the given network status can be estimated. Simulations show that the estimated results are accurate.

Key words: wireless local area network, distributed coordination function, service status, hidden node