Results 191 to 200 of about 351,026 (246)
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2008
Although powerful and necessary to prevent network collapse, the congestion control mechanism of the TCP is not sufficient to avoid congestion. Since TCP sources exert a limited control of the network, and unresponsive flows, which do not slow down their sending rates when congestion occurs, may be present, the efficacy of end-to-end congestion control
Michele Mara de Araújo Espíndula Lima +1 more
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Although powerful and necessary to prevent network collapse, the congestion control mechanism of the TCP is not sufficient to avoid congestion. Since TCP sources exert a limited control of the network, and unresponsive flows, which do not slow down their sending rates when congestion occurs, may be present, the efficacy of end-to-end congestion control
Michele Mara de Araújo Espíndula Lima +1 more
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Analysis of active queue management
Second IEEE International Symposium on Network Computing and Applications, 2003. NCA 2003., 2003Active 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
null Jae Chung, M. Claypool
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Active Sense Queue Management (ASQM)
2015 IFIP Networking Conference (IFIP Networking), 2015Active Queue Management (AQM) algorithms have seen a lot of attention in recent academic literature as well as in the popular press. The problem with traditional AQM is that it is designed to operate on queues at the IP layer. However, the problem popularly called bufferbloat can move about among many queues some of which are resistant to traditional ...
Daniel M. Havey, Kevin C. Almeroth
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Active Queue Management in EGPRS
2006 IEEE 63rd Vehicular Technology Conference, 2006Active Queue Management (AQM) schemes such as Random Early Detection (RED) or Explicit Congestion Notification (ECN) for TCP-based traffic are important components of the General Packet Radio Service (GPRS) system performance because of potential traffic bottlenecks caused by, e.g., limited radio capacity.
R. Cuny, J. Lakkakorpi
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Reduction-based robust active queue management control
Control Engineering Practice, 2007Abstract This paper is concerned with the design of improved active queue management (AQM) control schemes for time-delay systems taking into account explicitly the presence of delays in the controller design. A robust controller coping with uncertainties on the network parameters such as round-trip time and load variations is proposed. This is based
MANFREDI, SABATO +2 more
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Active Queue Management Algorithms in DiffServ Networks
Journal of Software, 2005Summary: Current Assured Forwarding (AF) service in differentiated services (DiffServ) networks can provide stable guarantees in throughput, but is lacking of efficient schemes in ensuring queuing delay and loss ratio. By analyzing the steady state operating point of RIO, this paper proposes two active queue management algorithms with adaptive control ...
Liu, Wei +5 more
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Active queue management algorithm considering queue and load states
Computer Communications, 2005In this paper, we propose a new AQM algorithm that considers both the average queue length and the estimated packet arrival rate together in order to detect and control incipient congestion. It predicts the average queue length and controls it to maintain a certain reference value to achieve high link utilization and low queueing delay.
Hong, Jaesung +2 more
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Robustness of real and virtual queue-based active queue management schemes
IEEE/ACM Transactions on Networking, 2004In this paper, we evaluate the performance of both real and virtual queue-based marking schemes designed for use at routers in the Internet. Using fluid flow models, we show via analysis and simulations that Virtual Queue (VQ)-based marking schemes outperform Real Queue (RQ)-based marking schemes in terms of robustness to disturbances and the ability ...
A. Lakshmikantha, C.L. Beck, R. Srikant
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About the stability of active queue management mechanisms
Proceedings of the 2004 American Control Conference, 2004In this paper, we discuss the influence of multiple bottlenecks on the stability of active queue management (AQM) controllers, usually configured on a single bottleneck basis. To see this, we consider a network scenario where RED is configured at each router according to previously developed control theoretic techniques.
BAUSO, Dario +2 more
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An optimal active queue management controller
2004 IEEE International Conference on Communications (IEEE Cat. No.04CH37577), 2004This paper introduces a novel AQM optimal controller. The synthesis of the controller uses a non-rational approach, in which stability and performance objectives of the system are completely expressed as linear matrix inequalities (LMIs). The controller stabilizes the system under diverse network conditions.
M.Mde.A.E. Lima +2 more
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