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| Content Provider | IEEE Xplore Digital Library | 
|---|---|
| Author | Zhang, D. lonescu, D. | 
| Copyright Year | 2006 | 
| Description | Author affiliation: Sch. of Inf. Technol., Ottawa Univ., Ont. (Zhang, D.; lonescu, D.) | 
| Abstract | Provisioning QoS enabled VPN services over packet switched networks is increasingly important for service providers. Previous works propose a dynamic packet loss control system that maintains preset packet loss targets for the instantiated VPN services in the provider's backbone network. In the control system, the transducer and dynamic model have been studied. However, the identified linear model contains time-varying norm-bounded uncertain parameters. This paper extends the previous research and designs a robust controller. Specifically, the classical controller is first designed. A linear matrix inequality (LMI) approach for designing the robust proportional-integral (PI) controller is then studied. By adopting the LMI expression, a symmetric positive definite matrix P with guaranteed overall system's quadratic stability is determined. The matrix P finally infers the robust PI controller parameters. Through a number of experiments, the transient and steady state performance of the controller-is evaluated on the live NCIT*net network | 
| Starting Page | 1167 | 
| Ending Page | 1170 | 
| File Size | 555608 | 
| Page Count | 4 | 
| File Format | |
| ISBN | 1424400384 | 
| DOI | 10.1109/CCECE.2006.277637 | 
| Language | English | 
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) | 
| Publisher Date | 2006-05-07 | 
| Publisher Place | Canada | 
| Access Restriction | Subscribed | 
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) | 
| Subject Keyword | Robust control Linear matrix inequalities Virtual private networks Symmetric matrices Packet switching Control systems Spine Control system synthesis Transducers Pi control Root Locus VPN LMI Robust Control | 
| Content Type | Text | 
| Resource Type | Article | 
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