Medium access control access delay analysis of IEEE 802.11e wireless LAN

Author

Dapeng, W. ; Yan, Z. ; Muqing, W. ; Xiaojing, Z.

Author_Institution

Broadband Commun. Networks Lab., Beijing Univ. of Posts & Telecommun., Beijing

Volume

3

Issue

6

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

1061

Lastpage

1070

Abstract

The IEEE 802.11e standard is specified to support quality-of-service in wireless local area networks, and different contention parameters are designated to each type of service. This developed model is presented to analyse the scheduling and the contention between packets with different priorities, where the new features of the enhanced distributed channel access such as virtual collision, backoff, minimum contention window and different arbitration inter-frame spaces are taken into account. Based on the model, the delay performance of differentiated service traffic is analysed and a recursive method is proposed, which is capable of calculating the mean access delay. Simulations show that the model and the analysis provide an insight into the protocol and the effects of different parameters on the performance.

Keywords

DiffServ networks; Markov processes; access protocols; quality of service; scheduling; telecommunication traffic; wireless LAN; wireless channels; IEEE 802.11e wireless LAN; Markov model; contention parameter; differentiated service traffic; distributed channel access; mean access delay analysis; medium access control; quality-of-service; recursive method; scheduling; wireless local area network;

fLanguage

English

Journal_Title

Communications, IET

Publisher

iet

ISSN

1751-8628

Type

jour

DOI

10.1049/iet-com.2008.0493

Filename

5062575