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Dynamic Bandwidth Allocation Scheme with Considering Downstream Traffic in EPON  

Kim Eun-Chul (Mobile Communication Division, TN Business, SAMSUNG ELECTRONICS Co.)
Lee Kang-Won (Department of Electronic Engineering, Kyungpook National University)
Choi Young-Soo (Department of Electronic Engineering, Kyungpook National University)
Cho You-Ze (Department of Electronic Engineering, Kyungpook National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.42, no.12, 2005 , pp. 37-44 More about this Journal
Abstract
This paper proposes a hybrid scheme for dynamic bandwidth allocation(DBA) in Ethernet passive optical network(EPON), which combines advantages of adaptive cycle and constant cycle-based schemes. The proposed scheme is based on IPACT scheme, but it operates as adaptive cycle or constant cycle mode according to the queue status of optical line terminal(OLT) for downstream transmission. Simulation results showed that the proposed scheme could achieve a similar throughput in downstream transmission to a constant cycle-based DBA scheme, while producing a similar delay performance to the IPACT scheme in upstream transmission.
Keywords
Ethernet passive optical network (EPON); dynamic bandwidth allocation (DBA);
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  • Reference
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