Efficient admission control scheme to support QoS in WLANs
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Admission control in the IEEE 802.11e WLANs based on analytical modelling and game theory
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
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WLANs have become a ubiquitous networking technology deployed everywhere. Meanwhile. VoIP is one popular application and a viable alternative to traditional telephony systems due to its cost efficiency. VoIP over WLAN (VoWLAN) has been emerging as an infrastructure to provide low-cost wireless voice services. However, VoWLAN poses significant challenges due to the characteristics of contention-based protocols and wireless networks. In this article we propose two mechanisms to provide quality of service for variable bit rate VoIP in IEEE 802.11e contention-based channel access WLANs: access time-based admission control and access point dynamic access. Simulation results are conducted to study these schemes.