APRED:RED Improved Algorithm Based on Avg and P
RED algorithm is the only candidate algorithm which is recommended by IETF,but RED has some problems,such as the avg changes slowly when congestion starts and drop probability is not accurate.In order to more precisely calculate the avg and p,proposes an improved RED algorithm,called APRED,which dynamically adjusts the avg and non-linear modifies P.Simulation results show that the improved algorithm can get a better average throughput in the bottleneck link and has lower packet loss rate in router.Whether in the case of persistent stream and sudden stream the APRED algorithm will be able to reduce the fluctuations of the average queue.The algorithm has a better network adaptability.