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

fYear

2007

fDate

24-27 Nov. 2007

Firstpage

784

Lastpage

787

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICSPC.2007.4728436

Filename

4728436