Journals / Anadolu Üniversitesi Bilim ve Teknoloji Dergisi :A-Uygulamalı Bilimler ve Mühendislik / 2004 / Cilt: 5 - Sayı: 2

Synthesis based flow controllers for data communication networks with multiple time delays

Birden fazla zaman gecikmesine sahip veri iletişim ağlarında akış kontrolü için kontrolör tasarımı

Pages
307–326
Publication Date
2022-10-11
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The simulation results show that the controllers are robust to uncertain time-varying multiple time-delays, force the queue length at the bottleneck node to the desired steady-state value asymptotically, and also satisfy the weighted fairness condition.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:This study is about $mu$ controller design for the solution of a flow control problem for data communication networks which have uncertain time varying multiple time delays.
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Key Findings & Data:In order to illustrate the performance of the $mu$ controllers, some simulation studies are done.
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Conclusion & Impact:The simulation results show that the controllers are robust to uncertain time-varying multiple time-delays, force the queue length at the bottleneck node to the desired steady-state value asymptotically, and also satisfy the weighted fairness condition.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

This study is about $mu$ controller design for the solution of a flow control problem for data communication networks which have uncertain time varying multiple time delays. After the statement of the problem, the time delays in the model are approximated in order to have a finite dimensional model. By applying D-K iteration method to the finite dimensional model, $mu$ controllers are obtained. In order to illustrate the performance of the $mu$ controllers, some simulation studies are done. The simulation results show that the controllers are robust to uncertain time-varying multiple time-delays, force the queue length at the bottleneck node to the desired steady-state value asymptotically, and also satisfy the weighted fairness condition.

Özet

Belirsiz ve zamanla değişen birden fazla zaman gecikmesine sahip veri iletişim ağlarında ortaya çıkan debi tabanlı akış kontrolü probleminin çözümü için $mu$ kontrolör tasarımı yapılmıştır. Ele alınan sonsuz boyutlu sistemde var olan gecikmeler yerine yaklaşıklık kullanılması ile sistem sonlu boyuta indirgenerek D-K iterasyon yöntemi ile $mu$ kontrolörler tasarlanmıştır. Elde edilen $mu$ kontrolörlerin performanslarını gözlemlemek amacıyla benzetim çalışmaları da yapılmıştır. Bu çalışmalarda da $mu$ kontrolörlerin zamanla değişen zaman gecikmelerine karşı gürbüzlük gösterdikleri, darboğazdaki kuyruk uzunluğunu istenen yatışkın değere asimtotik olarak yaklaştırdıkları ve ağırlıklı eşitlik ilkesini sağladıkları görülmüştür.

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Cite This Article

ATAŞLAR, B. (2022). Synthesis based flow controllers for data communication networks with multiple time delays. Anadolu Üniversitesi Bilim ve Teknoloji Dergisi :A-Uygulamalı Bilimler ve Mühendislik, Cilt: 5 - Sayı: 2, 307–326. https://ajindex.com/articles/438448

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