Performance analysis of service differentiation schemes for IEEE 802.11 Wireless LANs in non-saturated conditions

Author

Changchun Xu ; Liu, Kezhong ; Jun Zhou

Author_Institution

Modern Educ. Technol. Center, Naval Univ. of Eng., Wuhan

fYear

2008

fDate

25-27 Aug. 2008

Firstpage

12

Lastpage

16

Abstract

In order to support quality of service (QoS) in 802.11 wireless LAN, current research work as well as the enhanced DCF (EDCF) defined in 802.11e standard, tends to provide differentiated services by varying the parameters of MAC protocol. In this paper, we present an analytical model for performance evaluation of these service differentiation schemes in non-saturated traffic conditions. The analytical results show that neither significant throughput nor packet delay differentiation can be achieved by these schemes when the total load is less than the optimal value, which is quite different from that in saturated conditions. The simulation results validate the analytical model.

Keywords

access protocols; quality of service; telecommunication traffic; wireless LAN; DCF; IEEE 802.11 Wireless LAN; MAC protocol; distributed coordination function; nonsaturated traffic conditions; packet delay differentiation; quality of service; service differentiation schemes; Analytical models; Delay; Educational technology; Media Access Protocol; Performance analysis; Quality of service; Throughput; Traffic control; Wireless LAN; Wireless application protocol; IEEE 802.11; non-saturated conditions; performance analysis; service differentiation;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Networking in China, 2008. ChinaCom 2008. Third International Conference on

Conference_Location

Hangzhou

Print_ISBN

978-1-4244-2373-6

Electronic_ISBN

978-1-4244-2374-3

Type

conf

DOI

10.1109/CHINACOM.2008.4684958

Filename

4684958