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Performance Analysis of Per-VC Cell Scheduling
Sylvain ARCHAMBAULT James YAN
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, per-VC queueing, QoS, cell scheduling,
Full Text: PDF(573.5KB)>>
Per-Virtual Connection (VC) queueing allows an ATM switch to schedule cells to be transmitted on a link based on their VC. This alternative to the traditional First-In-First-Out(FIFO)queueing, in which cells from different VCs of the same priority are stored in a common queue, is implemented by some switch manufacturers. This paper assesses the merits of per-VC scheduling in regards to capacity, traffic shaping, and interworking with traffic management mechanisms such as connection admission control (CAC) and use of queue thresholds. The paper also discusses the conditions which favor the use of per-VC scheduling.