Asynchronous transfer mode (ATM) is a cell-based transport scheme which can potentially carry a heterogeneous mix of traffic in an integrated and efficient manner by statistically multiplexing bursty traffic flows at the expense of buffering delay and cell loss. In ATM networks, a suitable buffer management scheme is needed in order to meet the required quality of service (QOS). In this paper, we propose a buffer management scheme using two different prioritized state-dependent service disciplines to improve the quality of service of delay time for each traffic class and reduce the cell loss rate of loss-sensitive class. We also analyze the delay time and the cell loss rate for each class of traffic. The results indicate that in the proposed state-dependent priority schemes, the delay time of one traffic class greatly decreases while that of the other traffic class increases slightly and the required buffer size for achieving the same cell loss rate of loss-sensitive class is also reduced. © 1994, Elsevier Science B.V. All rights reserved. All rights reserved.
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