Performance Modelling and Control of Server Systems using Non-linear Control Theory
Författare
Redaktör
- J. Charzinski
- R. Lehnert
- P. Tran-Gia
Summary, in English
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.
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.
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
Ämne
- Control Engineering
- Communication Systems
Conference name
18th International Teletraffic Congress ITC-18
Conference date
2003-08-31 - 2003-09-05
Conference place
Berlin, Germany
Status
Published
Projekt
- Tele- och datakommunikationssystem: Performance Analysis of distributed Applications
Forskningsgrupp
- Tele- och datakommunikationssystem
ISBN/ISSN/Övrigt
- ISBN: 0-444-51455-4