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Architectural design and bandwidth demand analysis for multiparty videoconferencing on SONET/ATM rings

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3 Author(s)
Gang Feng ; Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore ; Chee Kheong Siew ; Tak-Shing Peter Yum

In this paper, we propose a scheme for implementing multiparty videoconferencing service on SONET/ATM rings. We focus on the architectural design and bandwidth demand analysis. Different multicasting methods on SONET/ATM rings are discussed and compared. A new multicast virtual path (VP) called "Multidrop VP" which is particularly suitable for SONET/ATM rings is proposed. An add-drop multiplexer (ADM) structure for rings capable of multidropping is also presented. Several VP assignment schemes are proposed and their bandwidth utilizations are compared.

Published in:

IEEE Journal on Selected Areas in Communications  (Volume:20 ,  Issue: 8 )