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Performance Analysis of Buffer Management Mechanisms with Delay Constraints in ATM Switches
Norio MATSUFURU Kouji NISHIMURA Reiji AIBARA
IEICE TRANSACTIONS on Communications
Publication Date: 1998/02/25
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on ATM Switching Systems for future B-ISDN)
Category: Control and performance
ATM, buffer management policy, QoS, Markov model,
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We study buffer access policies which provide different loss priorities between two types of services, namely, real-time and nonreal-time services in ATM networks. Real-time services, such as video and voice, require the cell transmission with bounded delay. For these services, their available buffer sizes are limited by the delay bounds. We compare the performance of several buffering policies with bounded delay constraints of real-time services. Numerical results indicate that a simple buffering policy, called limited partial buffer sharing (LPBS) proposed in this paper, has a good performance for efficient use of ATM networks.