Czasopismo | PRZEGLĄD ELEKTROTECHNICZNY | Rocznik 2016 - zeszyt 4

Feedback control system with PWA load dependent reference buffer occupancy for congestion control in computer networks

10.15199/48.2016.04.11

nr katalogowy: 97589
10.15199/48.2016.04.11

Congestion avoidance plays the significant role in increasing network reliability and efficiency. To minimize blockage effects, many methods and algorithms have been proposed. A method of active egress queue length control in use not to over on underutilize buffer occupancy in non-stationary, discrete, dynamical model of communication channel is described in this paper. This approach allows to optimize available network nodes resources to avoid congestions effects or to minimize or alleviate negative impact of these congestion on network throughput. Streszczenie. W artykule zaproponowano metodę aktywnego sterowania długości kolejki wyjściowej, w celu zminimalizowania niepożądanych efektów zatorów sieciowych. Metoda ta pozwala unikać sytuacji nadmiernego przepełnienia lub opróżnienia bufora wyjściowego. Do badań został wykorzystany niestacjonarny, dyskretny, dynamiczny model kanału komunikacyjnego. Takie podejście umożliwia optymalizację dostępnych zasobów w węzłach sieciowych.(Sterowanie zatorami w sieciach komputerowych z wykorzystaniem pętli sprzężenia zwrotnego oraz wartości referencyjnej odcinkowo afinicznie zależnej od zajętości bufora). Keywords: congestion control, discrete-time systems, dynamical model, computer networks. Słowa kluczowe: kolejka sieciowa, sieci komputerowe Introduction Many approaches in alleviation the result of network congestion has been presented in the literature [1, 2, 3, 4, 5]. The goal of these deliberation is to optimize utilization of available resources to improve the efficiency of different sorts of transmission grids [1, 2]. The phenomenon of congestion appearance affects network as the data exchange environment and as a collection of many singular communication channels [6, 7]. Modern, dispersed data exchange system relays on fast, uncongested traffic flows. The occurrence of congestions in communication networks is connected as well with limited interlinks bandwidth as finite hardware resources[...]

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