Transfer Delay of Buffer Insertion Ring with Priority

Buffer insertion ring (BIR) adopts the multiple-channel and multiple-queue to differentiate the traffic with priority to satisfy the requirements of various quality of different services. Different from former analysis of BIR, the main characteristics of performance such as average transfer delays and throughputs under both uncongested and congested scenarios are studied and analyzed in the paper. It has been shown through analyses and simulations that the performance of high-priority traffic could be guaranteed even when congestion occurred on BIR. Simulation results also indicate that by correctly setting parameters of BIR nodes, transfer delay of low-priority traffic could be decreased to achieve lower transfer-delay while the performance of traffic with high-priority is guaranteed.