Service Class Priority Controlled DBA Scheduling Method and Performance Evaluation in Ethernet PONs 


Vol. 12,  No. 5, pp. 679-686, Oct.  2005
10.3745/KIPSTC.2005.12.5.679


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  Abstract

Because EPON access network shares a medium and aggregates the traffic from EPON subscribers, scheduling media access control on EPON bandwidth allocation is very important. Furthemore DBA mechnism of EPON based on TDMA is out of specification and up to implementation. This paper deals with a DBA method to quarantee the Qos of the Delay sensitive traffic on the base of best-effort service and delay priority queue management. The proposed method performs virtual scheduling algorithm for the integrated traffic. It uses the same MAC messages and tries to quarantee the Qos of higher priority traffic first with a simple DBA Arcfhitecture. We evaluate the algorithm for traffic delay according to polling interval and traffic load of upstream and downstream. The results show that the proposed method can guarantee the QoS of the delay sensitive traffic with priority of the service classes.

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[IEEE Style]

Y. S. Nam, "Service Class Priority Controlled DBA Scheduling Method and Performance Evaluation in Ethernet PONs," The KIPS Transactions:PartC, vol. 12, no. 5, pp. 679-686, 2005. DOI: 10.3745/KIPSTC.2005.12.5.679.

[ACM Style]

Yoon Seok Nam. 2005. Service Class Priority Controlled DBA Scheduling Method and Performance Evaluation in Ethernet PONs. The KIPS Transactions:PartC, 12, 5, (2005), 679-686. DOI: 10.3745/KIPSTC.2005.12.5.679.

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