Dead-time compensation for ABR traffic control over ATM networks

被引：25

作者：

Gómez-Stern, F ^{[1
]}

Fornés, JM ^{[1
]}

Rubio, FR ^{[1
]}

机构：

[1] Escuela Super Ingn, Dept Ingn Sistemas & Automat, Seville 41092, Spain

来源：

CONTROL ENGINEERING PRACTICE | 2002年 / 10卷 / 05期

关键词：

ATM; smith predictor; high speed networks; congestion control; dead-time;

D O I：

10.1016/S0967-0661(01)00162-9

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper presents a rate-based controller for throttling available bit rate (ABR) input rates in high speed asynchronous transfer mode (ATM) networks with significant propagation delays. First, a Smith predictor based controller is analyzed in terms of performance and stability. Saturation issues are handled with anti-windup techniques. Performance is improved by means of the feedback of an estimate of the ABR disturbance. This reduces the average queue level, guaranteeing the shortest delays possible while keeping the channel fully occupied. Finally, sensitivity to delay estimation errors is analyzed, and the limitations of the proposed controller are discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：481 / 491

页数：11

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