Research Article
Performance Analysis of Service Differentiation Schemes for IEEE 802.11 Wireless LANs in Non-saturated Conditions
@INPROCEEDINGS{10.1109/CHINACOM.2008.4684958, author={changchun xu and Kezhong Liu and Jun Zhou}, title={Performance Analysis of Service Differentiation Schemes for IEEE 802.11 Wireless LANs in Non-saturated Conditions}, proceedings={ChinaCom2008-Wireless Communications and Networking Symposium}, publisher={IEEE}, proceedings_a={CHINACOM2008-WCN}, year={2008}, month={11}, keywords={IEEE 802.11 service differentiation performance analysis non-saturated conditions.}, doi={10.1109/CHINACOM.2008.4684958} }- changchun xu
Kezhong Liu
Jun Zhou
Year: 2008
Performance Analysis of Service Differentiation Schemes for IEEE 802.11 Wireless LANs in Non-saturated Conditions
CHINACOM2008-WCN
IEEE
DOI: 10.1109/CHINACOM.2008.4684958
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.
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