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Communication Dans Un Congrès Année : 2009

Stability analysis of networked control systems based on a switched control

Arben Cela
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Abdellatif Reama
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Résumé

Congestion control is a fundamental building block in packet switching networks such as the Internet due to the sharing of communication resources. It has been shown that the plant dynamics is essentially made of an integrator plus time delay and that a proportional controller plus a Smith predictor is a simple and effective controller. It has been also shown that the today running TCP congestion control can be modelled using a Smith predictor plus a proportional controller. Due to the importance of this control structure in the field of data network congestion control, we analyze the robust stability of the closed loop system in the face of delay uncertainties that in data networks are present due to queuing. In particular, by applying a geometric approach, we derive a bound on the proportional controller gain which is necessary and sufficient to guarantee stability given a bound on the delay uncertainty.
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Dates et versions

hal-02291638 , version 1 (19-09-2019)

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Citer

Xu-Guang Li, Arben Cela, Silviu-Iulian Niculescu, Abdellatif Reama. Stability analysis of networked control systems based on a switched control. 1st IFAC workshop on estimation and control of Networked systems (NecSys'09), Sep 2009, venise, Italy. pp.358-363, ⟨10.3182/20090924-3-IT-4005.00061⟩. ⟨hal-02291638⟩
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