The Community for Technology Leaders
RSS Icon
Subscribe
Clearwater Beach, FL, USA USA
Oct. 22, 2012 to Oct. 25, 2012
ISBN: 978-1-4673-1565-4
pp: 419-427
Wei Yin , The University of Queensland, School of Information Technology and Electrical Engineering, Australia
Peizhao Hu , National ICT Australia (NICTA), Australia
Jadwiga Indulska , The University of Queensland, School of Information Technology and Electrical Engineering, Australia
Marius Portmann , The University of Queensland, School of Information Technology and Electrical Engineering, Australia
Jonathan Guerin , The University of Queensland, School of Information Technology and Electrical Engineering, Australia
ABSTRACT
Node mobility, signal fading and interference introduce dynamics in wireless channels. In 802.11 wireless networks, there are several transmission rates that can be adaptively selected by the MAC-layer rate control mechanisms to cater for various channel conditions. Accurately estimating the current channel conditions and successfully selecting the appropriate rates at the right time is critical to ensure the network's optimal performance. In this paper we focus on the problem of rate selection and present a robust, yet practical, rate control mechanism—RCELC, which measures the throughput achieved by each rate, and it selects a rate that achieve the highest throughput for the current channel conditions. To ensure its robustness RCELC optimises rate sampling and also guarantees achieving the highest throughput even in the cases of collisions. RCELC is a practical rate control mechanism that we have developed and evaluated on new mac80211 framework in Linux. We use a set of comprehensive evaluation scenarios and show that RCELC achieves superior performance and substantially outperforms the best rate control mechanism currently available in Linux.
INDEX TERMS
Throughput, Channel estimation, Loss measurement, Robustness, Linux, IEEE 802.11 Standards
CITATION
Wei Yin, Peizhao Hu, Jadwiga Indulska, Marius Portmann, Jonathan Guerin, "Robust MAC-layer rate control mechanism for 802.11 wireless networks", LCN, 2012, 38th Annual IEEE Conference on Local Computer Networks, 38th Annual IEEE Conference on Local Computer Networks 2012, pp. 419-427, doi:10.1109/LCN.2012.6423656
18 ms
(Ver 2.0)

Marketing Automation Platform Marketing Automation Tool