Abstract
In this paper we analyse the performance of an Adaptive Random-Reservation Medium Access Control (MAC) protocol which can support all ATM service classes while providing the required Quality of Service (QoS). Our study focuses on parameter optimisation of the multiple access schemes for ATM over a GEO satellite with on-board processing capabilities, considering various traffic mixes of Constant Bit Rate (CBR), real-time Variable Bit Rate (rt VBR), non-real-time VBR (nrt VBR) and Unspecified Bit Rate (UBR). It is shown that maximum throughput can be achieved by using this access scheme. A TDMA access protocol combining both Random Access and Demand Assignment Multiple Access (DAMA) is particularly suited for a scenario with a high number of terminals and very bursty UBR traffic (e.g. web browsing). UBR sources with short burst length access the slots remaining after the reservation procedure by random access which drastically reduces the slot access delay, at the expense of lower utilisation.
It is shown that the potential user population which can be served is considerably increased by statistically multiplexing bursty traffic over the air interface.
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© 1998 Springer Science+Business Media Dordrecht
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Örs, T., Sun, Z., Evans, B.G. (1998). An adaptive random-reservation MAC protocol to guarantee QoS for ATM over satellite. In: Kühn, P.J., Ulrich, R. (eds) Broadband Communications. BC 1998. IFIP — The International Federation for Information Processing. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-35378-4_9
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DOI: https://doi.org/10.1007/978-0-387-35378-4_9
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