An analytical model for the IEEE 802.11e enhanced distributed coordination function

Zhifeng Tao, Shivendra Panwar

Research output: Contribution to journalConference article

Abstract

The IEEE 802.11e protocol is designed to enhance the QoS capability of wireless local area networks (WLAN). In this paper, we propose a three dimensional Markov chain model for the 802.11e enhanced distributed coordination function (EDCF)1 mode and compute the maximum sustainable throughput and service delay distribution for each priority class when under heavy load. This provides an analytical approach to pick the parameter values associated with EDCF to meet the QoS requirements of each priority. This is accomplished by modeling the performance impact of all the major QoS-speciflc features (i.e. CWMin, CWMax, AIFS, internal collision resolution) of the 802.11e EDCF mode.

Original languageEnglish (US)
Pages (from-to)4111-4117
Number of pages7
JournalIEEE International Conference on Communications
Volume7
StatePublished - 2004
Event2004 IEEE International Conference on Communications - Paris, France
Duration: Jun 20 2004Jun 24 2004

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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