1,721,081 research outputs found
Linear Control Theory for modeling and performance evaluation of ATM congestion control algorithms
No full textMETODO E ARCHITETTURA PER IL CONTROLLO DI CONGESTIONE NELLE RETI A COMMUTAZIONE DI PACCHETTO
No full textAsynchronous Transfer Mode (ATM) Congestion Control Techniques and Applications in Communication and Data Network Systems
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Rate Based Congestion Control for multicast ABR traffic
No full textWe present an end to end rate control algorithm for multicast (point to multipoint) ABR service in ATM networks. The algorithm is the multicast extension of the SP-EPRCA unicast (point-to-point) congestion control algorithm proposed by Mascolo et al. (see Proceedings of INFOCOM'96, vo1.2, p.569-76). The goal is to control the multicast input rate in order to achieve high bandwidth utilization without overflowing any queue along the multicast tree. The straightforward approach would be to consider a multicast connection as a superposition of unicast connections, and to compute the multicast input rate as the minimum among all unicast input rates. The main problem is the congestion caused by feedback traffic from the multiple destinations. To solve this problem, we show how feedback information cells can be intelligently "merged" at each multicast tree "fork" without losing essential information needed by the control algorithm placed at the source. The algorithm proposed inherits all properties from the unicast SP-EPRCA
A Control Theoretical Approach to Congestion Control in Packet Networks
No full textIn this paper, we introduce a control theoretical analysis of the closed-loop congestion control problem in packet networks. The control theoretical approach is used in a proportional rate controller, where packets are admitted into the network in accordance with network buffer occupancy. A Smith Predictor is used to deal with large propagation delays, common to high speed backbone networks. The analytical approach leads to accurate predictions regarding both transients as well as steady-state behavior of buffers and input rates. Moreover, it exposes tradeoffs regarding buffer dimensioning, packet loss, and throughput
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