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Burst-Polling-Based Dynamic Bandwidth Allocation Using Adaptive Minimum Guaranteed Bandwidth for EPONs
- Authors
- Lim, Wansu; Yun, Changho; Yang, Yeon-Mo; Lee, Hyunju; Kim, Kiseon
- Issue Date
- 1-Dec-2009
- Publisher
- OPTICAL SOC AMER
- Keywords
- Dynamic bandwidth allocation (DBA); Ethernet passive optical network (EPON); Quality of service (QoS)
- Citation
- JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING, v.1, no.7, pp 594 - 599
- Pages
- 6
- Journal Title
- JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING
- Volume
- 1
- Number
- 7
- Start Page
- 594
- End Page
- 599
- ISSN
- 1943-0620
1943-0639
- Abstract
- The enhanced burst-polling dynamic bandwidth allocation (EBDBA) method is proposed to support broadband access networks based on quality of service for Ethernet passive optical networks (EPONs). EBDBA adaptively increases or decreases the minimum guaranteed bandwidth of the three traffic clasess-expedited forwarding (EF), assured forwarding (AF), and best effort (BE) traffic-according to the requested bandwidth of an optical network unit. Therefore, network resources are efficiently utilized and adaptively allocated to the three traffic classes for unbalanced traffic conditions. Simulation results using OPNET show that EBDBA outperforms conventional bandwidth allocation schemes in terms of the average packet delay (it decreases the maximum performance range to 68%) and the network throughput (it increases the maximum performance range to 20%) at a given offered load of 1.2.
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