Performance analysis of the TXOP scheme in IEEE 802.11e WLANs with bursty error channels
Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Title of host publication | IEEE Wireless Communications and Networking Conference, WCNC |
Publication status | Published - 2009 |
Publication series
Name | |
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ISSN (Print) | 1525-3511 |
Conference
Title | 2009 IEEE Wireless Communications and Networking Conference, WCNC 2009 |
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Place | Hungary |
City | Budapest |
Period | 5 - 8 April 2009 |
Link(s)
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.
IEEE Wireless Communications and Networking Conference, WCNC. 2009. 4917890.
Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review