Constrained decentralized flow control of communication networks

Yi Fan, Zhong Ping Jiang, Yuan Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We present a decentralized nonlinear flow control scheme for a class of communication networks with physical constraints. Through a detailed analysis, we demonstrate that nonlinear system theory can be applied to cope with saturation nonlinearity and unknown disturbances in network flow control problems. We solve the constrained queue regulation problem against traffic interferences with control input and state saturation, under two explicitly identified conditions, namely a "PE" condition and a Lipschitz-like condition. Asymptotic regulation is achieved for both a single-node system and large-scale networks, for all feasible initial states. The trade-offs of various control parameter settings are revealed through our analysis. Computer simulations confirm the effectiveness of our non-linear network flow control scheme.

Original languageEnglish (US)
Title of host publicationProceedings of the 16th IFAC World Congress, IFAC 2005
PublisherIFAC Secretariat
Number of pages6
ISBN (Print)008045108X, 9780080451084
StatePublished - 2005

Publication series

NameIFAC Proceedings Volumes (IFAC-PapersOnline)
ISSN (Print)1474-6670


  • Asymptotic regulation
  • Flow control
  • Nonlinear control
  • Saturation

ASJC Scopus subject areas

  • Control and Systems Engineering


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