A Design of Bandwidth Allocation Scheme with Priority Consideration for Upstream Channel of Ethernet PON 


Vol. 28,  No. 11, pp. 859-866, Nov.  2003


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  Abstract

In this paper, we designed the bandwidth allocation scheme with priority consideration for upstream channel access of EthernetPON. The objective of our schemeis to control the multi services in more effective way according to their CoS(Class of Service) or QoS(Quality of Service). The designed scheme considers transmission priority in the both side of OLT and ONU. In the OLT's view, the Two-step scheduling algorithm is applied with which we can support multiple bandwidth allocation policies simultaneously, i.e. SBA for the time-sensitive, constant rate transmission services and DBA for the best-effort services. This Two-step scheduling algorithm reduces the scheduling complexity by separating the process of transmission stan time decision from the process of grant generation. In the ONU's view, the proposed scheme controls 8 priority queues of the 802.1d recommended 8 service classes. Higher priority queue is serviced in prior during the allowed GATE time from OLT. The OPNET modeling and simulation result compares the performance of each bandwidth allocation policy with SBA or DBA only approach.

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  Cite this article

[IEEE Style]

H. Lee, T. Yoo, J. Moon, H. Lee, "A Design of Bandwidth Allocation Scheme with Priority Consideration for Upstream Channel of Ethernet PON," The Journal of Korean Institute of Communications and Information Sciences, vol. 28, no. 11, pp. 859-866, 2003. DOI: .

[ACM Style]

Ho-Sook Lee, Tae-Whan Yoo, Ji-Hyun Moon, and Hyung-Ho Lee. 2003. A Design of Bandwidth Allocation Scheme with Priority Consideration for Upstream Channel of Ethernet PON. The Journal of Korean Institute of Communications and Information Sciences, 28, 11, (2003), 859-866. DOI: .

[KICS Style]

Ho-Sook Lee, Tae-Whan Yoo, Ji-Hyun Moon, Hyung-Ho Lee, "A Design of Bandwidth Allocation Scheme with Priority Consideration for Upstream Channel of Ethernet PON," The Journal of Korean Institute of Communications and Information Sciences, vol. 28, no. 11, pp. 859-866, 11. 2003.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880