首页 | 本学科首页   官方微博 | 高级检索  
     


A traffic-class burst-polling based delta DBA scheme for QoS in distributed EPONs
Authors:Yeon-Mo  Ji-Myong  NP  Kiseon  Byung-Ha  
Affiliation:

aGwangju Institute of Science and Technology (GIST), 1 Oryong-dong, Buk-ku, Gwangju-si 500-712, Korea

bDepartment of Electrical Engineering, Catholic University of Daegu, 330, kumrak 1-ri, Gyungsan-si, Gyongbuk 712-702, Korea

Abstract:Ethernet passive optical network (EPON) preserves the merits of traditional Ethernet network while reducing complexities and improving quality of service (QoS). In this paper, a traffic-class burst-polling based delta dynamic bandwidth allocation (TCBP-DDBA) scheme is presented to provide better QoS to expedited forwarding packet and maximize channel utilization service to assure forwarding and best effort packets. The network resources are efficiently utilized and adaptively allocated to the three traffic classes by guaranteeing the requested QoS. Simulation results using OPNET show that the TCBP-DDBA scheme performs well in comparison to the conventional allocation scheme for a set of given parameters such as: packet delay, queue size, packet delay variation and channel utilization. This work considers system-wide DBA development in contrast to unit-based approach. It is concluded that the algorithm can be used for many types of EPON-based practical distributed networks.
Keywords:Dynamic bandwidth allocation (DBA)  Ethernet passive optical networks (EPON)  Quality-of-service (QoS)  Burst-polling  Scheduling
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号