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Although EPONs have been proposed as a means of overcoming the bandwidth bottleneck problem in local access networks, they may not be able to meet the ever-growing bandwidth demand from users in the near future. Accordingly, this study presents what we believe to be a novel wavelength-division-multiplexing (WDM) Ethernet passive optical network (EPON) system based on an arrayed-waveguide-grating (AWG)...
Recently, various analytical models have been proposed to analyze the performance of traditional EPONs. However, these analytical models are not readily applicable to analyze the performance of WDM EPON systems since they are aimed specifically at a single-channel EPON environment. Accordingly, this paper constructs an analytical framework comprising an M/M/1 queuing model and a recursive formulation...
This study proposes a novel WDM EPON system based upon an AWG, in which multiple wavelengths are established in both the upstream and the downstream fibers. The use of the AWG enables the WDM EPON architecture to achieve wavelength spatial-reuse and to provide an intercommunication capability between ONUs. As a result, the architecture not only allows upstream access to the central office but also...
This study proposes a novel WDM EPON system based upon an AWG, in which multiple wavelengths are established in both the upstream and the downstream fibers. The use of the AWG device enables the WDM EPON architecture to support wavelength spatial reuse and allows the ONUs to communicate directly with one another rather than through the OLT. The proposed WDM EPON scheme takes account of the requirement...
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