Abstract
Most existing WLAN access mechanisms cannot provide QoS assurances. Even those that are QoS aware can only provide relative service differentiation. Based on EY-NPMA, the HIPERLAN Medium Access Control algorithm, we propose a dynamic priority medium access scheme to provide time-bounded services. By approximating an ideal Earliest Deadline First (EDF) scheduler, the proposed scheme can offer delay and delay jitter assurances while achieving high medium utilization. Furthermore, we compare our scheme with a mechanism that enhances the IEEE 802.11 MAC protocol with QoS support. Simulation studies document and confirm the positive characteristics of the proposed mechanism.
This work was supported in part by the Hellenic State Scholarships Foundation (I.K.Y) and by the General Secreteriat of Research and Technology in the framework of the G.S.R.T. project: Irakleitos.
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Tsigkas, O., Pavlidou, FN., Dimitriadis, G. (2005). On the Service Differentiation Capabilities of EY-NPMA and 802.11 DCF. In: Braun, T., Carle, G., Koucheryavy, Y., Tsaoussidis, V. (eds) Wired/Wireless Internet Communications. WWIC 2005. Lecture Notes in Computer Science, vol 3510. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11424505_28
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DOI: https://doi.org/10.1007/11424505_28
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