Abstract
Although the physical transmission rate increases rapidly, the quality of service (QoS) support for real-time traffic is still a challenge. 802.11 EDCA can only provide service differentiation, but not ensure the QoS as expected because of the uncertain short-term prioritized access and restrained high-priority traffic capacity problems. This paper proposes a distributed MAC protocol called in-band busy tone (IBT) protocol to address both the problems simultaneously. It uses the in-band busy tone reservation and preemptive scheduling schemes to provide the deterministic prioritized channel access, and improves the real-time traffic capacity through the optimized CW settings. Simulation results demonstrate that the IBT performs much better than EDCA on supporting the QoS of the real-time traffic.
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Zhou, X., Zheng, C. (2016). In-band Busy Tone Protocol for QoS Support in Distributed Wireless Networks. In: Gervasi, O., et al. Computational Science and Its Applications – ICCSA 2016. ICCSA 2016. Lecture Notes in Computer Science(), vol 9786. Springer, Cham. https://doi.org/10.1007/978-3-319-42085-1_45
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DOI: https://doi.org/10.1007/978-3-319-42085-1_45
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