In the TCP network environment system the researcher and developer mainly focus on congestion control. The existing paper provides an analysis of congestion metric with or without flow of information in queue based AQM algorithms, on the basis of the algorithms, proposed a new algorithm APAQM (An Alternative path Active Queue Management Congestion control Algorithm). An Alternative path Active ...

Active Queue Management (AQM) is a very active research area in networking flows. In order to stem the increasing packet loss rates caused by an exponential increase in network traffic, researchers have been considering the deployment of active queue management algorithms. In this paper we will evaluate the active queue management algorithms such as Droptail, RED, BLUE, REM, GREEN and PURPLE. T...

Active queue management (AQM) algorithms have been proposed to leverage TCP protocol inherent congestion algorithms which usually fail to maintain the queue length to an average level under large or bursting workloads. The main task of AQM algorithms is to detect network congestion at its early stages and start drop packets before the congestion affects the network throughput in a high degree. ...

Active Queue Management (AQM) takes a trade-off between link utilization and delay experienced by data packets. From control point of view, it is rational to regard AQM as a typical regulation system. In this paper, two types of controllers, i.e. Sliding Mode Variable Structure (SMVS) controller and optimal Linear Quadratic Regulator (LQR) are designed for AQM. Simulation results conform the ro...

In this paper we introduce a new active queue management (AQM) algorithm called GREEN. GREEN provides high link utilization whilst maintaining low delay and packet loss. GREEN enables low latency interactive applications such as telephony and network games. GREEN is shown to outperform the current AQM algorithms. Certain performance problems with current AQMs are discussed.

This paper investigates the implementation of a class of active queue management algorithms (AQM) whose measure of congestion includes packet arrival rate, such as REM and GREEN, in a combined input and output queued (CIOQ) switch. We propose a structure with one AQM per output port and we analyze the constraints on the switch fabric speed that this imposes. A two queue model of a CIOQ switch i...

Based on the proportionally fair scheme that Kelly proposed to solve the optimization problems for utility function in networks, and in order to improve the congestion control performance for the queue in router, the linear and terminal sliding active queue management (AQM) algorithms are designed. Especially in the terminal sliding AQM algorithm, a special nonlinear terminal sliding surface is...

Random Early Detection (RED) is one of the most commonly used Active Queue Management (AQM) algorithms that is recommended by IETF for deployment in the network. Although RED provides low average queuing delay and high throughput at the same time, but effectiveness of RED is highly sensitive to the RED parameters setting. As network condition varies largely, setting RED's parameters with fixed ...

In active queue management (AQM), core routers signal transmission control protocol (TCP) sources with the objective of managing queue utilization and delay. It is essentially a feedback control problem. Based on a recently developed dynamic model of TCPs congestion-avoidance mode, this paper does three things. First, it relates key network parameters such as the number of TCP sessions, link ca...

RED is an Active Queue Management (AQM) technique that is intended to achieve high link utilization with a low queuing delay. Recent studies show that RED is difficult to configure for some rapidly changing traffic mixes and loads [2]. Other studies show that under some conditions, the performance gains of RED and its variants over traditional drop-tail queue management is not significant given...