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Performance Modelling and Control of Server Systems using Non-linear Control Theory

  • J. Charzinski
  • R. Lehnert
  • P. Tran-Gia
Publiceringsår: 2003
Språk: Engelska
Sidor: 1151-1160
Publikation/Tidskrift/Serie: Providing quality of service in heterogeneous environments : proceedings of the 18th International Teletraffic Congress, ITC-18, Berlin, Germany, 31 August - 5 September 2003 (Teletraffic science and engineering ; vol. 5)
Volym: 5A-B
Dokumenttyp: Konferensbidrag
Förlag: Elsevier


All service control nodes, for example SCPs, HLRs, and MSCs, are constructed as a server system

with one or more servers that process incoming requests. Since service control nodes are sensitive to

overload, admission control mechanisms are often implemented. In this paper, we model and analyse

admission control mechanisms for server systems with control theoretic methods. We develop a nonlinear

stochastic control theoretic model of a GI/G/1-system. Further, we show that this model can be

used to design admission control mechanisms that behave well in the “real” system, that is the queuing

system. We develop two types of controllers for the system, one PI-controller and one RST-controller,

both commonly used in automatic control. Also, we discuss some of the limitations of previous work in

this area, in which only deterministic and linear models have been used.


  • Control Engineering
  • Communication Systems


18th International Teletraffic Congress
  • Tele- och datakommunikationssystem: Performance Analysis of distributed Applications
  • Tele- och datakommunikationssystem-lup-obsolete
  • ISBN: 0-444-51455-4

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