Design and analysis of a WDM EPON for supporting private networking and differentiated services

Hui Tang Lin, Chia Lin Lai, Wang Rong Chang, Sheng Jhe Hong

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


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) module to meet the rapidly increasing bandwidth demand anticipated in the future. The use of the AWG enables the proposed WDM EPON architecture to achieve wavelength spatial reuse and to provide an intercommunication capability between optical network units (ONUs). As a result, the architecture not only allows upstream access to the central office, but also facilitates a truly shared LAN capability among the end users. Furthermore, the proposed WDM EPON scheme takes account of the requirement for backward compatibility with the IEEE 802.3ah multipoint control protocol and incorporates a dynamic bandwidth allocation scheme and a quality-of-service provisioning mechanism to arbitrate the access of the individual ONUs over the WDM layer. An analytical framework is developed for evaluating the mean packet delay and mean queue length of the proposed WDM EPON system. The analytical results derived using this framework are found to be in good agreement with those obtained from computer simulations.

Original languageEnglish
Article number5457929
Pages (from-to)266-282
Number of pages17
JournalJournal of Optical Communications and Networking
Issue number5
Publication statusPublished - 2010 May

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications


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