Title :
Experimental Tuning of the AIFSN Parameter to Prioritize Voice over Data Transmission in 802.11E WLAN Networks
Author :
Narbutt, Miroslaw ; Davis, Mark
Author_Institution :
Sch. of Electron. & Commun. Eng., Dublin Inst. of Technol., Dublin, Ireland
Abstract :
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 impairments using the latest Appendix to the ITU-T E-model. Our experimental 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.
Keywords :
integrated voice/data communication; quality of service; tuning; wireless LAN; AIFSN parameter; EDCA; IEEE 802.11e; ITU-T E-model; MAC layer; arbitration inter frame space; enhanced distribution coordinate access; mixed voice/data wireless transmission; speech communication; voice transmisssion quality; wireless LAN; Communication networks; Data communication; Data engineering; Intelligent networks; Signal processing; Signal processing algorithms; Telecommunication traffic; Testing; Throughput; Wireless LAN; IEEE802.11e WLAN; data transmission; speech communication; voice transmission quality; wireless LAN;
Conference_Titel :
Signal Processing and Communications, 2007. ICSPC 2007. IEEE International Conference on
Conference_Location :
Dubai
Print_ISBN :
978-1-4244-1235-8
Electronic_ISBN :
978-1-4244-1236-5
DOI :
10.1109/ICSPC.2007.4728436
