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http://dx.doi.org/10.5762/KAIS.2013.14.7.3468

A Study on QoS Improvement for Overlay Multicast Using Modified Dijkstra Algorithm  

Lee, Hyung-Ok (Division of Electronics Computer Engineering, Chonnam National University)
Nam, Ji-Seung (Division of Electronics Computer Engineering, Chonnam National University)
Park, Jun-Seok (Electronics and Telecommunications Research Institute)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.14, no.7, 2013 , pp. 3468-3473 More about this Journal
Abstract
Conditions that overlay multicast tree must satisfy for the real-time application system of a video-conference, an internet broadcasting is two things. First, the degree of nodes in a tree must be proper value. Second, the diameter of the multicast tree, distance between longest two users should be short. If the path between two users in the tree is long, the delay time in data transmission between two users great. So, it is not suitable to the application system such as video-conferences. In this paper, the cost of the dijkstra algorithm calculate with proposed score-function through checking the extra bandwidth, the delay and the requested bandwidth. It is composed the tree through the dijkstra algorithm.
Keywords
Degree of node; Dijkstra algorithm; Overlay multicast;
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