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http://dx.doi.org/10.3745/KIPSTC.2005.12C.5.679

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

Nam Yoon-Seok (동국대학교 정보통신공학과)
Publication Information
The KIPS Transactions:PartC / v.12C, no.5, 2005 , pp. 679-686 More about this Journal
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. Furthermore DBA mechanism of EPON based on TDMA is out of specification and up to implementation. This paper deals with a DBA method to guarantee 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 guarantee the QoS of higher priority traffic first with a simple DBA architecture. 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.
Keywords
EPON; MPCP; DBA; Traffic Scheduling;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
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