ChinaCom2008-Wireless Communications and Networking Symposium

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
changchun xu1,*, Kezhong Liu2, Jun Zhou1
  • 1: Modern Educational Technology Center, Naval University of Engineering, Wuhan, China
  • 2: School of Navigation, Wuhan University of Technology, Wuhan, China
*Contact email: xuchangchun@263.net

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.