A Characteristic Based Scheduling Scheme for VBR Traffic over ATM Networks

Abstract

In this work, we investigate an ATM cell scheduling scheme based on traffic characteristics and QoS requirements. This so-called characteristic-based scheduler (CBS) uses both time frame concept and priority queueing. The frame size of a virtual connection (VC) is determined according to its reserved bandwidth and Maximum Burst Size (MBS). From the analysis and simulation results, we show the CBS features isolation of flows, guaranteed ent-to-end delay, high utilization, and simplicity of implementation. It is expected to accommodate the real-time VBR traffic with guaranteed QoS requirements.