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Congestion control of compressed video traffic over ATM networks

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4 Author(s)
Sisodia, G. ; Sch. of Electr. & Inf. Eng., Sydney Univ., NSW, Australia ; Ling Guan ; De, S. ; Dowlatshahi, M.

Video traffic is expected to account for a significant share of the traffic volume in future asynchronous transfer mode (ATM) networks. MPEG-2, proposed by the Moving Picture Expert Group, is one of the most promising compression techniques for such applications. One of the critical issues in MPEG-2 is to realize effective variable bit rate (VBR) video transfer thorough ATM networks. The leaky bucket (LB) scheme has been widely accepted as the usage parameter control (UPC) mechanism to police the VBR sources. We propose a new adaptive dynamic leaky bucket (ADLB) congestion control mechanism, which is based on the LB scheme. Unlike the conventional LB, the leak rate of the ADLB is controlled using delayed feedback information of available bandwidth sent by the network. The simulation results show that overall cell loss and delay are reduced significantly at the ATM switch node

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Computer Communications and Networks, 2000. Proceedings. Ninth International Conference on

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