Improving network congestion: A RED-based FuzzyPID approach

This research proposes a new active queue management method (or FPID) to improve network congestion, which integrates the random early detection (RED) method and fuzzy proportional integral derivative (FuzzyPID) approach. Fuzzy theory applied together with PID helps control the buffer queue within the target. This article provides the literature and theoretical background of network congestion problems, active queue management methods, automatic control systems, and fuzzy controllers. Following the discussion of the proposed FPID method and the experimental design, a simulation test is conducted and analyzed in comparison to the existing popular active queue management methods. The results prove the superiority of the proposed method.

► This study proposed a formal procedure to allow a longer waiting time for packets.
► The simulation shows evidence that no waiting time and delay existed when jitter was confined by FPID.
► The findings help increase the flexibility of packet transmission with better QoS.