Results 131 to 140 of about 2,552 (165)
Some of the next articles are maybe not open access.
An Adaptive REM for Improving AQM Performance
2008 IEEE International Conference on Communications, 2008In this paper, we propose an adaptive algorithm called Adaptive REM (AREM) that improves the performance of random exponential marking (REM) in two ways. Firstly, it adaptively controls the parameter alpha to achieve fast response, and secondly, it introduces a new method to evaluate dropping/marking probability with each packet arrival to reduce the ...
Jinsheng Sun +2 more
openaire +2 more sources
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
openaire +1 more source
A modification to RED AQM for CIOQ switches
IEEE Global Telecommunications Conference, 2004. GLOBECOM '04., 2005In very large networks with heavy traffic, congestion control plays an important role in network resource management. One approach to this is the active queue management (AQM) algorithms. Many AQM algorithms have been proposed and analyzed but they mainly focus on single queued links.
Jay Kumar Sundararajan +3 more
openaire +2 more sources
Research for AQM based on MiniMax method
Neural Computing and Applications, 2014This paper proposes an active queue management (AQM) controller for a class of linearized congestion router network systems in the presence of unknown time-varying link number and disturbances. Based on the idea of MiniMax method in game theory, a novel output feedback controller is specially designed with the improved robustness to the disturbances ...
Xudong Yuan, Yuanwei Jing
openaire +1 more source
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
openaire +2 more sources
Adaptive-CDM: A New AQM Controller to Cope with TCP/AQM Networks Dynamics
2005 5th International Conference on Information Communications & Signal Processing, 2006A new adaptive controller based on coefficient diagram method (CDM) as an active queue management (AQM) method is introduced. In the developed AQM (ACDM), the output feedback pole placement is implemented in an indirect model reference adaptive control (MRAC) scheme, in which the closed loop characteristic polynomial is determined by CDM and the system
N. Bigdeli, M. Haeri
openaire +1 more source
Constructive output feedback AQM design
Proceedings of the 2005, American Control Conference, 2005., 2005A novel constructive output feedback congestion controller is presented for asymptotically stabilizing a class of TCP networks at a desired operating point. An observer for the TCP window size is proposed to aid the task of designing AQM controller with only the output (queue size) measurement. Conditions under which the TCP window estimation converges
Yi Fan 0004 +4 more
openaire +1 more source
CDM-based design and performance evaluation of a robust AQM method for dynamic TCP/AQM networks
Computer Communications, 2009A new robust AQM strategy for dynamically varying TCP/AQM networks is proposed and its performance is investigated through computer simulations in MATLAB and ns-2 environments. The developed AQM is designed based on coefficient diagram method (CDM), which is a new indirect pole placement method that considers the speed, stability and robustness of the ...
Noshin Bigdeli 0001, Mohammad Haeri
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources