Source Estimating Anycast for High Quality of Service of Multimedia Traffic

Multicast communication techniques can supply the most appropriate infrastructures for multimedia having to carry data of heterogenous types. As a major multicast protocol, the core based tree (CBT) protocol has been concentratively studied. The CBT places a core router at the center of the shared tree and transfers data through the core router. However, the CBT has two problems resulted from centralizing all network traffics into a core router. First, it can raise bottleneck phenomenon at a core router. Second, it is possible to make an additive overhead for processing when a core router is distant from receivers. To cope with the problems, in this paper we seek an intelligent anycast routing protocol. The proposed anycast routing estimates traffic characteristics from multimedia data for each multicast source, and places a proper core router to process incoming traffic based on the traffic information when requests of receivers are raised. This method prevents the additional overhead to distribute traffics because an individual core router uses the information estimated about multicast sources connected to oneself and the statistics for processing traffics are shared with other core routers.

Authors and Affiliations

1. School of Electronics, Telecommunication and Computer Engineering, Hankuk Aviation University, 200-1, Hwajeon-dong, Deokyang-gu, Koyang-city, Kyonggi-do, 412-791, Korea

   Won-Hyuck Choi, Tae-Seung Lee & Jung-Sun Kim

Editors and Affiliations

1. Institute for Information Technology, National Research Council of Canada, 1200 Montreal Read, M-50, K1A 0R6, Ottawa, Ontario, Canada

   Bob Orchard

2. Institute for Information Technology, National Research Council, Canada

   Chunsheng Yang

3. Department of Computer Science, Texas State University-San Marcos, Nueces 247, 601 University Drive, TX 78666-4616, San Marcos, USA

   Moonis Ali

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© 2004 Springer-Verlag Berlin Heidelberg

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