Decentralised robust flow controller design for networks with multiple bottlenecks
INTERNATIONAL JOURNAL OF CONTROL, cilt.82, sa.1, ss.95-116, 2009 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 82 Sayı: 1
- Basım Tarihi: 2009
- Doi Numarası: 10.1080/00207170801993561
- Dergi Adı: INTERNATIONAL JOURNAL OF CONTROL
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.95-116
- Anahtar Kelimeler: communication networks, flow control, robust control, decentralised control, time-delay systems, H-infinity control, PACKET-SWITCHING NETWORKS, CONGESTION CONTROL, FEEDBACK-CONTROL
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Anadolu Üniversitesi Adresli: Evet
Özet
Decentralised rate-based flow controller design in multi-bottleneck data-communication networks is considered. An H problem is formulated to find decentralised controllers which can be implemented locally at the bottleneck nodes. A suboptimal solution to this problem is found and the implementation of the decentralised controllers is presented. The controllers are robust to time-varying uncertain multiple time-delays in different channels. They also satisfy tracking and weighted fairness requirements. Lower bounds on the actual stability margins are derived and their relation to the design parameters is analysed. A number of simulations are also included to illustrate the time-domain performance of the proposed controllers.