QoS control in wireless ATM

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-re gulating network congestion control management by means of global network s tate awareness and agent interactions. The agents dynamically manage the bu ffer space at the level of a switch and interact to reduce the cell loss ra tio while guaranteeing a bounded transit delay. We particularly address vid eo transmission over UBR services using a per-VP queuing approach and an ad aptive cell discarding congestion control scheme. Furthermore, a dynamic re configuration of the agents is performed during handoffs in order to contin ue meeting user end-to-end QoS requirements. The handoff delay absorption i s also addressed.