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1.2 COMPUTER AND INFORMATION SCIENCE, Communication engineering and systems, telecommunications
In this paper we experimentally study the impact of one EDCA parameter, namely AIFSN on a mixed voice/data wireless transmission. In particular we investigate how the tuning of this parameter affects both the voice transmission quality and background data throughput. We predict end-to-end voice transmission quality from time varying transmission impairements using the latest Appendix to the ITU-T E-model. Our experiemental results show that the tuning of the AIFSN parameter can successfully prioritize voice transmission over data in a real 802.11e network. To the best of our knowledge this is the first experimental investigation on tuning of MAC layer parameters in a real 802.11e WLAN network and its effect on end-to-end voice transmission quality.
Narbutt, M., Davis, M.: Experimental tuning of the AIFSN parameter to prioritize voice over data transmission in 802.11E WLAN networks. ACM International Conference on Wireless Communciations and Mobile Computing (IWCMC 2007), Hawaii, August, 2007.