Performance analysis of the TXOP scheme in IEEE 802.11e WLANs with bursty error channels

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

11 Scopus Citations
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Author(s)

  • Geyong Min
  • Jia Hu
  • Weijia Jia
  • Mike E. Woodward

Related Research Unit(s)

Detail(s)

Original languageEnglish
Title of host publicationIEEE Wireless Communications and Networking Conference, WCNC
Publication statusPublished - 2009

Publication series

Name
ISSN (Print)1525-3511

Conference

Title2009 IEEE Wireless Communications and Networking Conference, WCNC 2009
PlaceHungary
CityBudapest
Period5 - 8 April 2009

Abstract

To support the differentiated Quality-of-Service (QoS) and improve the utilization of the scarce wireless bandwidth, the IEEE 802.11e standard specifies an efficient burst transmission scheme referred to as the Transmission Opportunity (TXOP). Recently, analytical models have been reported to evaluate the performance of the TXOP scheme. However, most of these models were developed under the assumptions of the ideal channels or uniform error channels which fail to capture the characteristics of bursty and correlated channel errors in the practical wireless environment. In this paper, we propose an analytical model for the TXOP scheme in WLANs in the presence of bursty error channels. To this end, the transmission queue of each station is modelled by a two-state continuous time Markov chain. This model can be adopted to obtain the performance metrics including the throughput and buffer overflow probability. The accuracy of the analytical model is validated via NS-2 simulation experiments. Utilizing the proposed model, we investigate the impact of traffic loads, TXOP limit, and the number of stations on the performance of the TXOP scheme under various channel conditions.

Citation Format(s)

Performance analysis of the TXOP scheme in IEEE 802.11e WLANs with bursty error channels. / Min, Geyong; Hu, Jia; Jia, Weijia et al.
IEEE Wireless Communications and Networking Conference, WCNC. 2009. 4917890.

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review