Results 141 to 150 of about 884 (173)
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AQM for Weighted Fairness in Wireless LANs
IEEE Communications Letters, 2011In this letter, we propose a novel IEEE 802.11 WLAN based MAC to achieve fairness and efficiency for large groups of users. Unlike the current MAC, the proposed scheme excludes nodes which had an access to the channel recently from the contention by controlling a value of CW. The proposed scheme does not only improves throughput performance by reducing
Do-hyung Kim 0005 +3 more
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The Drop-From-Front Strategy in AQM
2007The article investigates the influence of the way packets are chosen to be dropped (end of the tail, head of the tail) on the performance, i.e. response time for in case of RED and DSRED queues - two representative active queue management mechanisms used in IP routers. In particular, the self-similar traffic is considered.
Joanna Domanska +2 more
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The effects of AQM on the performance of Assured Forwarding Service
Computer Communications, 2005Several active queue management (AQM) mechanisms have been proposed in the literature to provide better support for congestion control. However, their performance is examined mainly in best-effort networks. In this paper, we present an empirical study of the effects of AQM mechanisms on the performance of the Assured Forwarding (AF) Service in the non ...
Xiaolin Chang, Jogesh K. Muppala
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Proceedings of 2004 International Conference on Machine Learning and Cybernetics (IEEE Cat. No.04EX826), 2005
As an effective method for congestion control, active queue management plays an important role in improving the QOS of the Internet. We analyze the control mechanisms of typical transport layer protocols and AQM through dual theory, pointing out that although AQM is stateless, it has potential to improve flow fairness and stabilize queue length ...
null Hong-Bing Xu +3 more
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As an effective method for congestion control, active queue management plays an important role in improving the QOS of the Internet. We analyze the control mechanisms of typical transport layer protocols and AQM through dual theory, pointing out that although AQM is stateless, it has potential to improve flow fairness and stabilize queue length ...
null Hong-Bing Xu +3 more
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On the Performance of AQM Algorithms with Small Buffers
2009Packet buffers in routers play a major role in congestion control in existing Internet. They compensate for the incoming traffic bursts transmitted by aggressive TCP applications. The appropriate sizing of buffers is important for providing equilibrium between the high link utilization, the loss ratio and the queueing delay. There is a growing need for
Lukasz Chrost +2 more
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A spike-detecting AQM to deal with elephants
Computer Networks, 2012The current TCP/IP architecture is known to be biased against flows of small sizes-small flows (or mice)-in the network, thereby affecting the completion times of small flows. A common approach taken to solve this problem is to prioritize small flows over large flows (elephants) during the packet-scheduling phase in the router.
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Stability of TCP/RED Systems in AQM Routers
IEEE Transactions on Automatic Control, 2006By applying the time-delay control theory to a TCP/RED dynamic model, this note establishes some explicit conditions under which the TCP/RED system is stable in terms of the average queue length. Then, the stability region is discussed. Finally, the results are illustrated by using ns2 simulations, which demonstrates that it is able to choose an ...
Liansheng Tan +3 more
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An SU traffic controller for the TCP/AQM Networks
2015 IEEE International Conference on Communications (ICC), 2015This paper proposes an SU controller based on the H 2 /H ∞ norm formulation to address the data traffic control issues in the Transport Layer of the AQM Network. The SU controller arises from the incorporation of the S (Sensitivity) function and the U (Input Sensitivity) function along with their associated weight functions. It keeps the robust steady-
Navin Haghighizadeh, Oliver Yang
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A Framework for Designing Adaptive AQM Schemes
2005Active Queue Management(AQM) is an effective method to improve the performance of end-to-end congestion control. Several AQM schemes have been proposed to provide low delay and low loss service in best-effort networks in recent studies. This paper presents a generic framework which encompasses RED, P, PI, PIP, PD, SMVS, REM, AVQ as special cases by ...
Wen-hua Dou +3 more
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