A transparent QoS mechanism to support IntServ/DiffServ networks

Differentiated Services (DiffServ) QoS architecture is scalable but inadequate to deal with network congestion and unable to provide fairness among its traffic aggregates. Recently, IETF has recommended additional functions including admission control and resource discovery to enhance the original DiffServ [1]. In this paper, we propose a comprehensive framework for DiffServ networks. In our new architecture, the Fair Intelligent Congestion Control (FICC) algorithm is applied to provide fairness among traffic aggregates and control congestion inside the networks. The enhanced architecture is realizable within the existing IP network infrastructures. Simulation results show that the FICC-DiffServ performs excellently in terms of guaranteed fairness, minimized packet delay and jitter, robust to traffic attributes, and simple to implement.

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FICC-DiffServ: A New QoS Architecture Supporting Resources Discovery, Admission and Congestion Controls

Phan

Hoang

Third International Conference on Information Technology and Applications (ICITA'05)

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A Robust Congestion Control Strategy for Delay Dependent Differentiated-Services Networks

Bouyoucef

Khorasani

2007

2007 IEEE International Symposium on Industrial Electronics

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A Sliding Mode-based congestion control for time delayed differentiated-services networks

Bouyoucef

Khorasani

2007

2007 Mediterranean Conference on Control &Amp; Automation

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In this paper robust control techniques are used and investigated for congestion control problem of time-delayed scalable differentiated Services (DiffServ) networks. The robustness capabilities of sliding mode variable structure control (SM-VSC) technique are utilized as a design basis for a new congestion control strategy subject to inaccurate/uncertain network model. The fluid flow model (FFM) adopted in this paper is of low order and simpler than a detailed Markovian queuing probabilistic models. The proposed time-delayed dependent congestion control dynamics is studied analytically to guarantee stability of the closed-loop system. To evaluate the capabilities of our proposed robust control strategy, simulation results are provided for different operating conditions and time-delay values.

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A transparent QoS mechanism to support IntServ/DiffServ networks

Cited by 4 publications

References 9 publications

FICC-DiffServ: A New QoS Architecture Supporting Resources Discovery, Admission and Congestion Controls

FICC-DiffServ: A New QoS Architecture Supporting Resources Discovery, Admission and Congestion Controls

A Robust Congestion Control Strategy for Delay Dependent Differentiated-Services Networks

A Sliding Mode-based congestion control for time delayed differentiated-services networks

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