Fairness of the IEEE 802.11n aggregation scheme for real time application in unsaturated condition

Author

Charfi, Emna ; Chaari, Lamia ; Kamoun, Lotfi

Author_Institution

Lab. of Electron. & Inf. Technol. (LETI), Univ. of Sfax, Sfax, Tunisia

fYear

2011

fDate

26-28 Oct. 2011

Firstpage

1

Lastpage

8

Abstract

One of the challenges in today´s wireless networks is to provide appropriate throughput and delay for data and multimedia application. Although IEEE802.11e (EDCA) standard is concerned to support QoS in wireless networks, it cannot provide strict QoS required by real-time and multimedia services without proper network control mechanisms. The recent standard 802.11n introduced new MAC access mechanism based on aggregation scheme. In this paper, we aim to develop an analytical model for throughput and end-to-end delay under unsaturated 802.11n network taking in consideration the different Access Categories (AC) priorities. Based on simulation results, we demonstrate that even with aggregation mechanism, 802.11n is not able to guarantee QoS for high priority traffics.

Keywords

access protocols; multimedia communication; quality of service; wireless LAN; AC priorities; EDCA; IEEE802.11e standard; MAC access mechanism; QoS quarantee; access category priorities; analytical model; data application; end-to-end delay; multimedia application; network throughput; quality of service; real time application; unsaturated-IEEE 802.11n aggregation scheme; wireless networks; Analytical models; Delay; IEEE 802.11e Standard; IEEE 802.11n Standard; Quality of service; Throughput; 802. 11n; Aggregation; WLAN; end-to-end delay; non-saturation; priority; throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless and Mobile Networking Conference (WMNC), 2011 4th Joint IFIP

Conference_Location

Toulouse

Print_ISBN

978-1-4577-1192-3

Electronic_ISBN

978-1-4577-1191-6

Type

conf

DOI

10.1109/WMNC.2011.6097243

Filename

6097243