Analysis of temporal and throughput fair scheduling in multirate WLANs Academic Article

abstract

• The IEEE 802.11e Wireless Local Area Network (WLAN) provides controlled access features that can be used in conjunction with scheduling algorithms to provide guaranteed per-session services. However, the multirate operation of the WLAN complicates the design of scheduling and Quality of Service (QoS) provisioning algorithms. We propose a new solution based on Controlled Access Phase Scheduling (CAPS) framework, introduced for fixed rate WLANs in our earlier works, and employ a new fair central scheduler to achieve guaranteed fair services in a WLAN. We examine the fairness issues involved in designing such an algorithm and study several fair scheduling algorithms that can be used with CAPS. We present a modified start time fair queuing based scheduler as our choice and analyze its performance under dynamic and static multirate operation. The algorithm is then evaluated through several simulation experiments. We show that the enhanced CAPS is able to adapt to multirate environments and provide both temporal and throughput fair services in 802.11e WLANs. 2008 Elsevier B.V. All rights reserved.

authors

• Alnuweiri, Hussein

published proceedings

• COMPUTER NETWORKS

author list (cited authors)

• Fallah, Y. P., & Alnuweiri, H.

citation count

• 7

complete list of authors

• Fallah, Yaser Pourmohammadi||Alnuweiri, Hussein

publication date

• November 2008

publisher

• Elsevier  Publisher

published in

• Computer Networks  Journal

keywords

• Fair Scheduling
• Ieee 802.11e
• Multirate Transmission
• System Analysis And Design
• Wireless Local Area Networks

Digital Object Identifier (DOI)

• 10.1016/j.comnet.2008.08.012

start page

• 3169

end page

• 3183

volume

• 52

issue

• 16

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.comnet.2008.08.012