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A Study on Dynamic Provisioning Mechanism for QoS guarantee in DiffServ Networks  

Rhee, Woo-Seop (한국전자통신연구원 네트워크연구소)
Lee, Jun-Hwa (충남대학교 컴퓨터과학과 컴퓨터네트워크연구실)
Yang, Mi-Jeong (한국전자통신연구원 네트워크연구소)
Lee, Il-Woo (한국전자통신연구원 네트워크연구소)
Yu, Jae-Hoon (한국전자통신연구원 네트워크연구소)
Kim, Sang-Ha (충남대학교 컴퓨터과학과 컴퓨터네트워크연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.28, no.2B, 2003 , pp. 105-116 More about this Journal
Abstract
The differentiated service architecture is based on a simple model by applying a per-class service in the core node of the network. However, due to the simplified network behavior, the network structure and provisioning were more complicated. If a service provider wants the dynamic provisioning or better bandwidth guarantee, signaling protocol with QoS parameters or admission control method should be deployed in DiffServ network. However, these methods increase the complexity. Therefore, we proposed DPM2 mechanism for admission control in the DiffServ network. In this paper, we describe and survey the admission control methods that are applicable to IP networks and propose also the dynamic provisioning mechanism based on the bandwidth broker and distributed measurement based admission control and movable boundary bandwidth management to support heterogeneous QoS services in differentiated service networks. For the performance evaluation for proposed mechanism, we used ns-2 simulator.
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