QoS control in wireless ATM |
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Authors: | Iraqi Youssef Boutaba Raouf Leon‐Garcia Alberto |
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Affiliation: | (1) DIRO, University of Montreal, C.P. 6128, Succ. A, Montreal, QC, Canada, H3C 3J7;(2) DECE, University of Waterloo, Waterloo, Ont., Canada, N2L 3G1;(3) DECE, University of Toronto, 10 Kings College Road, Toronto, Ont., Canada, M5S 3G4 |
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Abstract: | This paper introduces a 3-level multiagent architecture for QoS control in WATM. The ultimate aim of the proposed architecture
is to provide a self-regulating network congestion control management by means of global network state awareness and agent
interactions. The agents dynamically manage the buffer space at the level of a switch and interact to reduce the cell loss
ratio while guaranteeing a bounded transit delay. We particularly address video transmission over UBR services using a per-VP
queuing approach and an adaptive cell discarding congestion control scheme. Furthermore, a dynamic reconfiguration of the
agents is performed during handoffs in order to continue meeting user end-to-end QoS requirements. The handoff delay absorption
is also addressed.
This revised version was published online in June 2006 with corrections to the Cover Date. |
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