A Multi-QoS Aggregation Mechanism for Improved Fairness in WLAN

Marta Gatnau, Davide Catania, Andrea Fabio Cattoni, Jagjit Singh Ashta, Preben Mogensen

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

10 Citations (Scopus)
477 Downloads (Pure)


The 802.11e and subsequently the 802.11n amendments
brought Quality of Service (QoS) into the Wireless Local
Area Network (WLAN) arena, in order to provide higher access
priority to certain types of traffic such as video and voice.
Unfortunately these improvements are not enough, since in very
dense and highly loaded network conditions they can provide
more harm than benefits, by making the lower priority traffic
starve and increasing the average collision rate. This lack of
performance in the Medium Access Control (MAC) layer is where
we focused our work. We propose a solution that avoids the
starvation of the lowest priority Access Categories (AC), taking
into account the priority defined by the 802.11e amendment and
at negligible or extremely low cost for the high priority ones.
Simulation results presented in this paper prove the effectiveness
of the method by showing delay improvements up to 92% in
overcrowded and overloaded networks.
Original languageEnglish
Title of host publicationVehicular Technology Conference (VTC Fall), 2013 IEEE 78th
Number of pages5
Publication date2013
ISBN (Print)978-1-4673-6187-3
Publication statusPublished - 2013
Event2013 IEEE 78th Vehicular Technology Conference: VTC2013-Fall - Las Vegas, United States
Duration: 2 Sep 20135 Sep 2013


Conference2013 IEEE 78th Vehicular Technology Conference: VTC2013-Fall
Country/TerritoryUnited States
CityLas Vegas
SeriesIEEE Vehicular Technology Conference. Proceedings


  • WLAN, aggregation, QoS


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