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Title |
An LMI Approach for Differentiated Services Network Robust Congestion Control with Uncertain Time-Variant Delays |
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Author |
Mehdi Alinaghizadeh Ardestani, M. Beheshti, and Hossein Oloomi |
| Citation |
Vol. 25 No. 5 pp. 124-128 |
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Abstract |
The growing demand of network applications requires efficient mechanisms for managing network traffic in order to avoid or at least limit the level of congestion. We design and analyzed a robust congestion controller for controlling traffic using information on the status of each queue in the network. This controller is based on a discrete-time model of the network, thus we do not need to simplification and linearization that is often used in congestion controller design. We assume a differentiated-services network framework and formulate our control strategy for three types of services: Premium Service, Ordinary Service, and Best Effort Service. The three differentiated classes of traffic operate at each output port of a router/switch. A robust controller is designed for ordinary output port, with consideration priority of premium services and delay of links. The controller has been applied to an ATM network. |
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Keywords |
Congestion Control, Linear Matrix Inequality, Time Delay System, Differentiated Services |
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