Technical Communique: On delay robustness analysis of a simple control algorithm in high-speed networks

Authors:
Silviu-Iulian Niculescu
Affiliations:
HEUDIASYC (UMR CNRS 6599), Universite de Technologie de Compiègne, BP 20529, 60205, Compiègne, cedex, France
Venue:
Automatica (Journal of IFAC)
Year:
2002

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Abstract

This paper focuses on the robustness analysis of a simple (second-order) control algorithm for data transfer in high-speed networks. The model under consideration (derived using a fluid approximation technique) can be found in Izmailov (SIAM J. Contr. Optimiz. 34 (1996) 1767). The novelty of the approach lies in characterizing the stability of the scheme in the delay-parameter space (where the delays correspond to the control-time interval, and to the round-trip time, respectively). Thus, we shall compute some delay-insensitive measures for the algorithm which give upper and lower bounds for the uncertainty in the knowledge of the round-trip times.