Existing researches on performance analysis of SCTP’s Concurrent Multipath Transfer (CMT-SCTP) usually use DropTail algorithm as queue management algorithm without considering the impact of the background traffic. However, the background traffic of realistic network environments has an important impact on the QoS of SCTP. Besides, more and more Active Queue Management (AQM) algorithms have been...

Self-similarity of network traffic is a well-known paradigm for more than a decade, now. Following the first realization of this property, it has been a popular issue to question if the self-similarity persisted with the changing network architectures and conditions. However, the effects of Active Queue Management (AQM) mechanisms over the self-similarity of network traffic have almost been lef...

The implementation of Active Queue Management (AQM) in Internet routers is a recommendation of the Internet Engineering Task Force. However, none of the current AQM algorithms directly makes use of the correlations present in Internet traffic, which are related to Long Range Dependence (LRD) and Self-Similarity. This is somewhat surprising in that it is well known that LRD is exhibited by Inter...

Congestion control is surely a mean to enhance network performances. Active queue management (AQM), which is a proactive approach, has been proposed as a solution to these problems [1]. One of the most well-known AQM policies is random early detection (RED). Although RED is an effective TCP congestion control [2], it can induce network instability and major traffic disruption if not properly co...

In this study, a control theoretical approach is brought to design and examine different flow controllers for congestion control in communicating networks. First, an Effective controller is planned for explicit rate congestion control in individual chokepoint network. The controller ensures constancy Effectiveness with respect to ambiguous time varying multiple time delays in different channels...

AQM (Active Queue Management) mechanisms support an end-to-end congestion control mechanism of TCP (Transmission Control Protocol). Researchers have claimed several advantages of AQM mechanisms over a conventional Drop-Tail gateway such as the small average queue length (i.e., the number of packets in the buffer). Several AQM mechanisms have been recently proposed and studied by many researcher...

The active queue management (AQM) problem of networks is discussed. An AQM scheme is presented based on improved sliding model controller. The proposed controller combines the excellent characteristics of linear sliding model controller (LSMC) and the terminal sliding model controller (TSMC). The LSMC is used to speed up the error convergence when the error is greater than one, and the TSMC is ...

In this report we use a previously developed nonlinear dynamic model of TCP to analyze and design Active Queue Management (AQM) Control Systems using RED. First, we linearize the interconnection of TCP and a bottlenecked queue and discuss its feedback properties in terms of network parameters such as link capacity, load and round-trip time. Using this model, we next design an AQM control system...

The popularity of TCP/IP has resulted in an increase in usage of best-effort networks for real-time communication. Much effort has been spent to ensure quality of service for soft real-time traffic over IP networks. The Internet Engineering Task Force has proposed some architecture components, such as Active Queue Management (AQM). The paper investigates the influence of the weighted moving ave...