PAC: Perceptive Admission Control for Mobile Wireless Networks
QSHINE '04 Proceedings of the First International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks
Contention-Aware Admission Control for Ad Hoc Networks
IEEE Transactions on Mobile Computing
Modelling and Performance Studies of ATM Networks Over Email & FTP
International Journal of Advanced Pervasive and Ubiquitous Computing
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Voice over WiFi (VoWiFi) will soon be the main alternative to cellular phones. Providing a satisfactory user experience remains difficult, however. We focus on Call Admission Control (CAC) for both Constant Bit Rate (CBR) and Variable Bit Rate (VBR) VoIP traffic. Our approach is based on measuring the time between idle times. It requires no infrastructure changes, adds no probing traffic and has low complexity. We demonstrate through extended simulations that our approach achieves very good accuracy for both delay estimation and CAC when only VoIP sources are present and when both VoIP sources and data sources are present. Furthermore, we confirm TBIT performance through experiments.