A proportional rate-based control scheme for active queue management

Abstract

We propose a new active queue management (AQM) scheme, proportional rate-based control (PRC), which aims to maintain the queue length around the target level by 1) dropping these packets whose arrival rate exceeding the desired rate; 2) using explicit congestion notification (ECN) marking to notify the source to suppress the transmission rate when the virtual queue becomes full. We compare the performance of PRC through simulation with several well-known AQM schemes such as RED, DRED and SRED. The study shows that the proposed scheme is more effective at stabilizing the queue size and responding quickly to traffic change while maintaining negligible loss