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CORR
2007
Springer

Analysis of the 802.11e Enhanced Distributed Channel Access Function

9 years 6 months ago
Analysis of the 802.11e Enhanced Distributed Channel Access Function
The IEEE 802.11e standard revises the Medium Access Control (MAC) layer of the former IEEE 802.11 standard for Quality-of-Service (QoS) provision in the Wireless Local Area Networks (WLANs). The Enhanced Distributed Channel Access (EDCA) function of 802.11e defines multiple Access Categories (AC) with AC-specific Contention Window (CW) sizes, Arbitration Interframe Space (AIFS) values, and Transmit Opportunity (TXOP) limits to support MAC-level QoS and prioritization. We propose an analytical model for the EDCA function which incorporates an accurate CW, AIFS, and TXOP differentiation at any traffic load. The proposed model is also shown to capture the effect of MAC layer buffer size on the performance. Analytical and simulation results are compared to demonstrate the accuracy of the proposed approach for varying traffic loads, EDCA parameters, and MAC layer buffer space.
Inanc Inan, Feyza Keceli, Ender Ayanoglu
Added 25 Dec 2010
Updated 25 Dec 2010
Type Journal
Year 2007
Where CORR
Authors Inanc Inan, Feyza Keceli, Ender Ayanoglu
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