QoS Adaptive Flow based Active Queue Management Algorithm and Performance Analysis

Performance Analysis of Active Queue Management Algorithms

Congestion in a network or internet creates obvious problems for the end system: reduced availability and throughput and lengthened response times. When a packet is dropped before it reaches its destination, all of the resources it has consumed in transit are wasted. Improving the congestion control and queue management algorithms in the Internet has been one of the most active areas of researc...

Adaptive Fuzzy Active Queue Management

Recently many Active queue management (AQM) algorithms have been proposed to address performance degradations of end-to-end congestion control. However, these AQM algorithms show weaknesses to detect and control congestion under dynamically changing network situations. In this paper, an adaptive fuzzy AQM is designed to congestion avoidance in TCP/AQM networks. This kind of control action has r...

Fixed and Adaptive Model-Based Controllers for Active Queue Management

In this paper we present new model-based controllers for active queue management (AQM) supporting TCP ows. Our control design is based on linearization of a previously developed TCP model using uid ow and stochastic di erential equations. An AQM using a simple PI controller is shown to signi cantly outperform RED AQM. However, we show that both AQMs are unable to maintain performance as the num...

Traffic Controller Active ( Class − based ) Queue Management Packet Classification Flow

Analysis of Active Queue Management

Active Queue Management (AQM) is intended to achieve high link utilization with a low queuing delay. Recent studies show that RED, one of the most well-known AQMs, is difficult to configure and does not provide significant performance gains given the complexity required for proper configuration. Recent variants of RED, such as Adaptive-RED are designed to provide more robust RED performance und...