Abstract
This paper proposes an emergency token based MAC scheme for wireless ATM networks. Token buffer of MT(Mobile Terminal) are constructed in BS(Base Station) for future slot allocation to reduce overhead of access request. The scheduler in base station assigns slots to the sources by polling of token buffer. In order to deal with dynamic nature and stringent QoS of compressed video source, emergency message is defined to inform BS of the source’s rate variation and buffer status. At the same time, voice sources are served without reservation. Also, handoff call of voice under micro-cellular environment can be accommodated timely. Emergency token buffer has higher priority over those of VBR and ABR. The emergency token scheduling scheme (ETSS) based on polling of token buffer is effective and easy to implement. Simulations are done to evaluate its performance. We found that the scheduling scheme proposed can significantly improve rtVBR’s loss and delay performance while low signalling overhead is needed.
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© 2000 Springer Science+Business Media New York
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Pang, K., Niu, Z., Zheng, J., Gu, X. (2000). An Emergency Token Based Multiple Access Control Scheme for Wireless ATM Networks. In: Tsang, D.H.K., Kühn, P.J. (eds) Broadband Communications. BC 1999. IFIP — The International Federation for Information Processing, vol 30. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-35579-5_28
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DOI: https://doi.org/10.1007/978-0-387-35579-5_28
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