In the last three decades, the development of communication and networking technology has rapidly increased and the use of the internet has become one of the tasks in our daily life. The revolution of the internet from transferring the data to the multimedia applications makes it one of the most important and quickest media for delivering the information in the world. On the other side, this re...

In this paper we consider a variant of Open Shortest Path First (OSPF) routing that accounts for Random Early Detection (RED), an Active Queue Management method for backbone networks. In the version of OSPF we consider in this paper we only require a single network path be available between each origin and destination, a simplification of the OSPF protocol. We formulate a mixed integer nonlinea...

Broadband satellite-based IP networks have been considered as the technology to enable a strong and promising next-generation market. In satellite communication systems, the channel performance might be severely degraded due to the dynamic weather conditions such as the precipitation, and thereby lead to network congestion. Therefore, congestion control is critical in such networks to satisfy Q...

Random Early Detection (RED), an active queue management scheme, has been recommended by the Internet Engineering Task Force (IETF) for the next generation routers. RED suffers from a number of performance problems, such as low throughput, large delay/jitter, and induces instability in networks. Many of the previous attempts to improve the performance of RED have been based on optimizing the va...

Recent years have seen an increasing interest in the design of AQM (Active Queue Management) controllers. The purpose of these controllers is to manage the network congestion under varying loads, link delays and bandwidth. In this paper, a new AQM controller is proposed which is trained by using the SVM (Support Vector Machine) with the RBF (Radial Basis Function) kernal. The proposed controlle...

In this paper we consider a finite queue with its arrivals controlled by the Random Early Detection (RED) algorithm. This is one of the most prominent congestion avoidance schemes in the Internet routers. The aggregate arrival stream from the population of TCP sources is locally considered stationary renewal or MMPP with general packet length distribution. We study the exact dynamics of this qu...

AQM (Active Queue Management) mechanism, which performs congestion control at a router for assisting the end-to-end congestion control mechanism of TCP, has been actively studied by many researchers. For instance, RED (Random Early Detection) is a representative AQM mechanism, which drops arriving packets with a probability being proportional to its average queue length. The RED router has four...

BACKGROUND High-risk human papillomavirus (HR HPV) testing is already part of cervical cancer screening programs in a number of countries. New tests need to be validated not only in clinical studies but also in routine screening settings with regard to their clinical performance. METHODS The Abbott RealTime High Risk HPV Test (RT hrHPV test) was evaluated in a random sample of 1,456 patients ...

It has been observed that Internet gateways employing Transport Control Protocol (TCP) and the Random Early Detection (RED) control algorithm may exhibit instability and oscillatory behavior. Most control methods proposed in the past have been based on analytical models that rely on statistical measurements of network parameters. In this paper, we apply the detrended fluctuation analysis (DFA) ...

The Internet is established on the best-effort service model. The Transmission Control Protocol employed in the current Internet has both fairness and efficiency issues. Pricing scheme has been proposed to address the fairness issue and prevent aggressive users occupying excessive network resource. Random early detection (RED) for the incipient congestion in routers, together with explicit cong...