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http://dx.doi.org/10.3745/KIPSTC.2008.15-C.6.557

Overlay Multicast Mechanism Supporting Differentiated QoS According to Service Level and User Environment over NGN  

Rhee, Bo-Young (건국대학교 대학원 컴퓨터공학과)
Cho, Sung-Chol (건국대학교 대학원 컴퓨터공학과)
Han, Sun-Young (건국대학교 정보통신대학원)
Publication Information
The KIPS Transactions:PartC / v.15C, no.6, 2008 , pp. 557-566 More about this Journal
Abstract
NGN(Next Generation Network) is a communication network which can make use of broadband and QoS-enabled transport technologies. One of the main service issues over NGN is a multimedia service, such as IPTV, using a multicast method. And overlay multicast technology is one of the promising solutions instead of traditional multicast technology which has a few problems, and supports flexibility and scalability for multicast services. Also, the main controversial topic in NGN and overlay multicast is QoS. In the present paper, we designed an agent in each receiver's network, and a manager which is in a source network and which manages the whole multicast network. Both of them are communicating with each other and applying resource policies to their multicast network. This mechanism enables overlay multicast to support QoS, focusing on RACF(Resource and Admission Control Functions) in NGN QoS architecture.
Keywords
NGN(Next Generation Network); Overlay Multicast; QoS; Differentiated Service; Resource Management; RACF(Resource and Admission Control Functions);
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