Dynamic wavelength and bandwidth allocation schemes in WDM-upgraded EPON

Zheyuan Tan; Hai Liu; Feng Zhou; Deming Liu; Dexiu Huang

doi:10.1117/12.745219

19 November 2007 Dynamic wavelength and bandwidth allocation schemes in WDM-upgraded EPON

Zheyuan Tan, Hai Liu, Feng Zhou, Deming Liu, Dexiu Huang

Proceedings Volume 6784, Network Architectures, Management, and Applications V; 67843P (2007) https://doi.org/10.1117/12.745219
Event: Asia-Pacific Optical Communications, 2007, Wuhan, China

Abstract

In this paper we first provide a novel WDM-upgraded EPON architecture with single wavelength downstream at 10Gbps and multiple wavelengths upstream at 1Gbps using hybrid WDM/TDM access method. After reviewing previous work and deficiency on dynamic wavelength and bandwidth allocation schemes of WDM EPONs, we propose evolutionary schemes which based on bandwidth debit and credit to solve the problem of unfair bandwidth allocation. This proposed original method can achieve a win-win situation for both credit ONUs and debit ONUs. The credit ONUs obtain better service after crediting bandwidth to others; while the debit ONUs can consume more bandwidth in emergency, and return the debited bandwidth later. The simulation results show that these algorithms performed well in successful assurance of the SLA guaranteed bandwidth of ONUs in normal utilization and efficient network utilization, rather than penalties executed on all ONUs when there were some greedy ONUs.

Citation Download Citation

Zheyuan Tan, Hai Liu, Feng Zhou, Deming Liu, and Dexiu Huang "Dynamic wavelength and bandwidth allocation schemes in WDM-upgraded EPON", Proc. SPIE 6784, Network Architectures, Management, and Applications V, 67843P (19 November 2007); https://doi.org/10.1117/12.745219

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