Active Queue Management (AQM) is a key congestion control scheme that aims to find a balance between keeping high link utilization, minimizing queuing delays, and ensuring a fair share of the bandwidth between the competing flows. Traditional AQM mechanisms use only information that is present at the intermediate nodes (routers). They do not take into account the particularities of the flows composing the traffic. In this paper, we make use of a mechanism, called Explicit RTT Notification (ERN), that shares with routers information about the Round Trip Times (RTTs) of the flows. We propose a new fuzzy logic based AQM controller that relies on the RTTs of the flows to improve fairness between them. The performances of the new proposed method, FuzzyRTT, is examined and compared to existing schemes via simulation experiments.

翻译：主动队列管理（AQM）是一种关键的拥塞控制机制，旨在平衡高链路利用率、最小化排队延迟以及确保竞争流之间的公平带宽分配。传统AQM机制仅利用中间节点（路由器）处的本地信息，而未考虑构成数据流的不同流特性。本文采用一种称为显式RTT通知（ERN）的机制，该机制向路由器共享各流的往返时间（RTT）信息。我们提出了一种基于模糊逻辑的新型AQM控制器，该控制器利用各流RTT信息来提升流间公平性。通过仿真实验，对所提出的新方法FuzzyRTT的性能进行了评估，并与现有方案进行了比较。