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IEICE TRANSACTIONS on Communications

A Priority-Based Packet Scheduling Architecture for Integrated Services Networks

Junni ZOU, Hongkai XIONG, Rujian LIN

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Summary :

To simultaneously support guaranteed real-time services and best-effort service, a Priority-based Scheduling Architecture (PSA) designed for high-speed switches is proposed. PSA divides packet scheduling into high-priority phase and low-priority phase. In the high-priority phase, an improved sorted-priority algorithm is presented. It introduces a new constraint into the scheduling discipline to overcome bandwidth preemption. Meanwhile, the virtual time function with a control factor α is employed. Both computer simulation results and theoretic analysis show that the PSA mechanism has excellent performance in terms of the implementation complexity, fairness and delay properties.

Publication
IEICE TRANSACTIONS on Communications Vol.E89-B No.3 pp.704-708
Publication Date
2006/03/01
Publicized
Online ISSN
1745-1345
DOI
10.1093/ietcom/e89-b.3.704
Type of Manuscript
Special Section LETTER (Special Section on the Next Generation Ethernet Technologies)
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