Ji Hyun Lee , Kyung Shik Lim , Hang Seok Oh , Taek Yong Nam

The KIPS Transactions:PartC, Vol. 12, No. 6, pp. 781-792, Oct. 2005
10.3745/KIPSTC.2005.12.6.781,   PDF Download:

Abstract

The study proposes an Architecture for use level End-to-end Quality of Service(QoS) using overlay in Next Generation Network(NGN), Inexisting NGNs, the IMS of a control plane provices user Qos Through direct traffic control and resource-reservation over the IP packet transport networks of a user plane. Further, a set of current studies are ongoing not only to maximize the QoS for user, but also to minimize the quality deterioration for supporting the user End-to-end QoS. Along with that, an extended QoS in user level must be considered, for instance, differentiating service quality to support users' expectation, providing optimized contents by users' equipments, and so forth. Accordingly, the Overlay Service Network Architecture proposed by this study provides protocol adaptation for maximum throughput on tranport layer by using the most efficient transport layer protocol to various network circumstances. Also the Overlay Service Network Architecture on Application layer distributyes processing delay from the data transformation process of the user equipment ro th network, and it is capable of intermediate processing depending on user service level, application service feature, and equipment circumstance as well, Thus this study mainly proposes the Overlay Service Network Architecture for user level end-to-end QoS in NGN with the quality control features both on the transport layer and the application layer, and internal component fe4aturem and a service scenario providing the QoS linking with 3GPP.

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