Adaptive Limited Dynamic Bandwidth Allocation Scheme for EPON 


Vol. 31,  No. 5, pp. 449-455, May  2006


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  Abstract

Due to advance in multimedia applications and integrated Internet services, the optical access networks have been actively studied. In particular, Ethernet passive optical network (EPON) has received much attention due to high bandwidth provision with low cost. In EPON system, the data transmission is carried out in two directions: downstream (from OLT to ONU) and upstream (from ONU to OLT). The downstream data is broadcasted to every ONUs, while the upstream data is point-to-point transmitted between each ONU and OLT, where the uplink is shared by all ONUs in the form of TDMA. The bandwidth allocation algorithm is required to efficiently manage the bandwidth on the uplink. The limited algorithm was proposed to enhance the capability of dynamic bandwidth allocation. In this paper, we propose the adaptive limited algorithm to enhance the shortcomings of limited algorithm. The adaptive limited algorithm enhances the dynamics on bandwidth allocation, and at the same time controls the fairness on packet delay. Through the computer simulations, it is shown that the adaptive limited algorithm achieves high dynamic on bandwidth allocation, maintains a good fairness on packet delay between ONUs, and keeps the fairness on the bandwidth on the demand basis.

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  Cite this article

[IEEE Style]

J. Hwang and M. Yoo, "Adaptive Limited Dynamic Bandwidth Allocation Scheme for EPON," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 5, pp. 449-455, 2006. DOI: .

[ACM Style]

Junho Hwang and Myungsik Yoo. 2006. Adaptive Limited Dynamic Bandwidth Allocation Scheme for EPON. The Journal of Korean Institute of Communications and Information Sciences, 31, 5, (2006), 449-455. DOI: .

[KICS Style]

Junho Hwang and Myungsik Yoo, "Adaptive Limited Dynamic Bandwidth Allocation Scheme for EPON," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 5, pp. 449-455, 5. 2006.