Several EDCA parameter sets for improving channel access in IEEE 802.11ax networks
- 20 October 2016
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE) in 2016 International Symposium on Wireless Communication Systems (ISWCS)
Abstract
To improve efficiency of wide channel usage in dense scenarios, Wi-Fi community is currently developing a new amendment - 802.11ax - which introduces OFDMA in Wi-Fi. To provide backward compatibility, OFDMA works on top of CSMA/CA, native for Wi-Fi. Although OFDMA transmission is much more efficient than traditional one, the straightforward usage of 802.11ax functionality leads to the low ratio of OFDMA uplink transmissions. This problem can be solved by changing channel access parameters, which can be done with a legacy mechanism. However, in a heterogeneous network with legacy and 802.11ax stations, this mechanism leads to severe unfairness. In the paper, we describe our recent proposal, which solves the problem, and evaluate its performance with an analytical model.Keywords
This publication has 6 references indexed in Scilit:
- Resource management for OFDMA based next generation 802.11 WLANsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2016
- IEEE 802.11ax: High-efficiency WLANSIEEE Wireless Communications, 2016
- Special issue on green networking, computing, and software systemsJournal of Network and Computer Applications, 2016
- IEEE 802.11ax: How to Build High Efficiency WLANsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2015
- An OFDMA based concurrent multiuser MAC for upcoming IEEE 802.11axPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2015
- Performance analysis of the IEEE 802.11 distributed coordination functionIEEE Journal on Selected Areas in Communications, 2000