A QoS scheduler for IEEE 802.11e WLANs

Author

Lim, L.W. ; Malik, R. ; Tan, P.Y. ; Apichaichalermwongse, C. ; Ando, K. ; Harada, Y.

Author_Institution

Panasonic Singapore Labs., Singapore

fYear

2004

fDate

5-8 Jan. 2004

Firstpage

199

Lastpage

204

Abstract

The paper introduces the application of IEEE 802.11e to the delivery of high bandwidth multimedia streams. The architecture for a QoS enabled MAC is described along with an efficient scheduling algorithm, which, when deployed at the AP, is able to serve QoS sensitive streams, while making efficient use of the channel bandwidth. The 802.11e MAC is simulated using OPNET and the performance of both the EDCA (enhanced distributed channel access) and the HCCA (HCF controlled channel access) mechanisms is studied under various scenarios. The results illustrate that HCCA when used in conjunction with the QoS scheduler satisfies the requirements of AV and speech applications.

Keywords

multimedia communication; quality of service; scheduling; telecommunication channels; wireless LAN; HCF controlled channel access; IEEE 802.11e WLAN; MAC; QoS scheduler; channel bandwidth; enhanced distributed channel access; high bandwidth multimedia streams; hybrid coordination function; scheduling algorithm; Bandwidth; Delay; Job shop scheduling; Laboratories; Multiaccess communication; Scheduling algorithm; Standards development; Streaming media; Traffic control; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Communications and Networking Conference, 2004. CCNC 2004. First IEEE

Conference_Location

Las Vegas, NV, USA

Print_ISBN

0-7803-8145-9

Type

conf

DOI

10.1109/CCNC.2004.1286858

Filename

1286858