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Analysis and design of admission control systems in web-server systems

Robertsson, Anders LU ; Wittenmark, Björn LU and Kihl, Maria LU (2003) American Control Conference, 2003 In Proceedings of the 2003 American Control Conference. Vol. 1 p.254-259
Abstract
All service control nodes, for example Web sites or Mobile Switching Centers, can be modeled as server systems with one or more servers processing the incoming requests. To avoid overload at the service control node different types of admission control mechanisms are usually implemented. In this paper we discuss, from a control point of view, the modeling of a service control-node. The queue is assumed to be an M/G/1-system and is modeled by a nonlinear flow model and a simplified discrete-time model is used in the analysis and design of the system. An admission control system based on a PI-controller combined with an anti-reset windup feature is developed. The stability of the admission control system is analyzed and the stability of the... (More)
All service control nodes, for example Web sites or Mobile Switching Centers, can be modeled as server systems with one or more servers processing the incoming requests. To avoid overload at the service control node different types of admission control mechanisms are usually implemented. In this paper we discuss, from a control point of view, the modeling of a service control-node. The queue is assumed to be an M/G/1-system and is modeled by a nonlinear flow model and a simplified discrete-time model is used in the analysis and design of the system. An admission control system based on a PI-controller combined with an anti-reset windup feature is developed. The stability of the admission control system is analyzed and the stability of the closed loop system is proved. The results from the simplified queue model are verified through discrete-event simulations of the system. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Proceedings of the 2003 American Control Conference. Vol. 1
pages
254 - 259
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
American Control Conference, 2003
external identifiers
  • wos:000186706200043
ISSN
0743-1619
ISBN
0-7803-7896-2
DOI
10.1109/ACC.2003.1238947
project
Tele- och datakommunikationssystem: Performance Analysis of distributed Applications
language
English
LU publication?
yes
id
a571ecfe-095e-4a39-97b3-edcae8ad96bf (old id 532512)
date added to LUP
2007-09-25 09:11:25
date last changed
2018-05-29 09:37:39
@inproceedings{a571ecfe-095e-4a39-97b3-edcae8ad96bf,
  abstract     = {All service control nodes, for example Web sites or Mobile Switching Centers, can be modeled as server systems with one or more servers processing the incoming requests. To avoid overload at the service control node different types of admission control mechanisms are usually implemented. In this paper we discuss, from a control point of view, the modeling of a service control-node. The queue is assumed to be an M/G/1-system and is modeled by a nonlinear flow model and a simplified discrete-time model is used in the analysis and design of the system. An admission control system based on a PI-controller combined with an anti-reset windup feature is developed. The stability of the admission control system is analyzed and the stability of the closed loop system is proved. The results from the simplified queue model are verified through discrete-event simulations of the system.},
  author       = {Robertsson, Anders and Wittenmark, Björn and Kihl, Maria},
  booktitle    = {Proceedings of the 2003 American Control Conference. Vol. 1},
  isbn         = {0-7803-7896-2},
  issn         = {0743-1619},
  language     = {eng},
  pages        = {254--259},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  title        = {Analysis and design of admission control systems in web-server systems},
  url          = {http://dx.doi.org/10.1109/ACC.2003.1238947},
  year         = {2003},
}