Search results for "congestion control"

showing 5 items of 5 documents

A genetic algorithm for the design of a fuzzy controller for active queue management

2003

Active queue management (AQM) policies are those\ud policies of router queue management that allow for the detection of network congestion, the notification of such occurrences to the\ud hosts on the network borders, and the adoption of a suitable control\ud policy. This paper proposes the adoption of a fuzzy proportional\ud integral (FPI) controller as an active queue manager for Internet\ud routers. The analytical design of the proposed FPI controller is\ud carried out in analogy with a proportional integral (PI) controller,\ud which recently has been proposed for AQM. A genetic algorithm is\ud proposed for tuning of the FPI controller parameters with respect\ud to optimal disturbance rej…

Settore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniRouterQueue management systemComputer sciencePID controllerFuzzy control systemRandom early detectionTCP Congestion ControlActive queue managementNetwork CongestionFuzzy logicComputer Science ApplicationsHuman-Computer InteractionNetwork congestionControl and Systems EngineeringControl theoryElectrical and Electronic EngineeringTail dropActive Queue ManagementSoftwareFuzzy Controllers.Information SystemsIEEE Transactions on Systems, Man and Cybernetics, Part C (Applications and Reviews)
researchProduct

Active queue management stability in multiple bottleneck networks

2004

In this paper, we show that the active queue management (AQM) controllers, usually configured on a single bottleneck basis, may not prevent instability in the presence of multiple bottlenecks. We justify this result through a multiple bottleneck model.

Queueing theoryAQM algorithmQueue management systemComputer sciencebusiness.industryDistributed computingStability (learning theory)Active queue managementBottleneckNetwork traffic controlManagementNetwork congestionCongestion control (communication)businessComputer network managementComputer network
researchProduct

End-to-end congestion control protocols for remote programming of robots, using heterogeneous networks: A comparative analysis

2008

There are many interesting aspects of Internet Telerobotics within the network robotics context, such as variable bandwidth and time-delays. Some of these aspects have been treated in the literature from the control point of view. Moreover, only a little work is related to the way Internet protocols can help to minimize the effect of delay and bandwidth fluctuation on network robotics. In this paper, we present the capabilities of TCP, UDP, TCP Las Vegas, TEAR, and Trinomial protocols, when performing a remote experiment within a network robotics application, the UJI Industrial Telelaboratory. Comparative analysis is presented through simulations within the NS2 platform. Results show how th…

0209 industrial biotechnologyComputer scienceIndustrial robotics telelaboratoryNetworked robotsGeneral Mathematics02 engineering and technologyE-learningInternet congestion control protocolIngeniería Industriallaw.invention020901 industrial engineering & automationlawInternet Protocol0202 electrical engineering electronic engineering information engineeringbusiness.industry020208 electrical & electronic engineeringNetwork traffic controlComputer Science ApplicationsNetwork congestionControl and Systems EngineeringRobotElectrónicaThe InternetTeleroboticsbusinessSoftwareHeterogeneous networkComputer networkRobotics and Autonomous Systems
researchProduct

Parallel Genetic Algorithms for the Tuning of a Fuzzy AQM Controller

2003

This paper presents the results of the application of a parallel Genetic Algorithm (GA) in order to design a Fuzzy Proportional Integral (FPI) controller for active queue management on Internet routers. The Active Queue Management (AQM) policies are those policies of router queue management that allow the detection of network congestion, the notification of such occurrences to the hosts on the network borders, and the adoption of a suitable control policy. Two different parallel implementations of the genetic algorithm are adopted to determine an optimal configuration of the FPI controller parameters. Finally, the results of several experiments carried out on a forty nodes cluster of workst…

RouterSettore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniQueue management systemComputer sciencebusiness.industryDistributed computingFuzzy control systemActive queue managementFuzzy logicNetwork congestionTCP Actuve Queue Management Genetic algorithms Fuzzy logic AQM TCP congestion controlControl theoryGenetic algorithmbusinessComputer network
researchProduct

TCP pārblīves vadības algoritma realizācija un testēšana

2015

Pārraides vadības protokols (turpmāk – TCP) ir viens no galvenajiem protokoliem interneta protokolu kopā. Pārblīves vadība ir būtiskākais TCP elements, kurš nosaka tā veiktspēju. Pārblīve ir pārmērīgi intensīva ziņojumu plūsma, kas aizkavē ziņojumu pārsūtīšanu datoru tīklā, nelabvēlīgi ietekmē datoru tīkla veiktspēju un var radīt pārraidāmās informācijas zudumus. Darbā tiek pētīta un aprakstīta TCP pārblīves vadības protokolu izstrāde Unix saimes operētājsistēmā FreeBSD, izmantojot tajā pieejamo modulāro TCP pārblīves vadības ietvaru. Protokolu testēšana tiek veikta IMUNES datortīklu simulācijas vidē, salīdzinot izveidoto protokolu moduļu veiktspēju ar FreeBSD pieejamo pārblīves vadības pro…

FreeBSDpārblīves vadībaDatorzinātneIMUNEScongestion controlTCP
researchProduct