A Modified - DWRR Cell Scheduling Algorithm improved the QoS of Delay


The KIPS Transactions:PartC, Vol. 8, No. 6, pp. 805-814, Dec. 2001
10.3745/KIPSTC.2001.8.6.805,   PDF Download:

Abstract

In this paper, we propose a new scheduling algorithm that guarantees the delay property of real-time traffic, not considered in previous DWRR(Dynamic Weighted Round Robin) algorithm and also transmits non-real-time traffic efficiently. The proposed scheduling algorithm is a variation of DWRR algorithm to guarantee the delay property of real-time traffic by adding cell transmission method based on delay priority. It also uses the threshold to prevent the cell loss of non-real-time traffic due to cell transmission method based on delay priority. Proposed scheduling algorithm may increase some complexity over conventional DWRR scheme because of cell transmission method based on delay priority. However, the consideration of delay priority can minimize cell delay and require less size of temporary buffer. Also, the results of our performance study shows that the proposed scheduling algorithm has better performance than conventional DWRR scheme due to reliable ABR service and congestion avoidance capacity.


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Cite this article
[IEEE Style]
J. Y. Kwak and J. S. Nam, "A Modified - DWRR Cell Scheduling Algorithm improved the QoS of Delay," The KIPS Transactions:PartC, vol. 8, no. 6, pp. 805-814, 2001. DOI: 10.3745/KIPSTC.2001.8.6.805.

[ACM Style]
Ji Young Kwak and Ji Seung Nam. 2001. A Modified - DWRR Cell Scheduling Algorithm improved the QoS of Delay. The KIPS Transactions:PartC, 8, 6, (2001), 805-814. DOI: 10.3745/KIPSTC.2001.8.6.805.