Abstract
In this paper we address an issue referred to as “over-granting problem”, which is inherent in the existing dynamic bandwidth allocation algorithms for Ethernet-based Passive Optical Networks (EPON), in particular when deployed for multi-threaded scheme in long-reach scenario. In order to solve this problem we design a scheme for the algorithm of Interleaved Polling with Adapted Cycle Time (IPACT) with the limited service discipline. We evaluate the proposed scheme through simulations for single-thread and double-thread cases and demonstrate that, the network performance can be significantly improved by our solution in terms of average delay, jitter, and throughput.
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Notes
It is important to note that the proposed type of solution may be difficult to extend to offline DBA schemes; which require the OLT to receive all the Report messages at the end of a cycle.
References
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De Andrade, M., Chen, J., Skubic, B. et al. Enhanced IPACT: solving the over-granting problem in long-reach EPON. Telecommun Syst 54, 137–146 (2013). https://doi.org/10.1007/s11235-013-9722-1
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DOI: https://doi.org/10.1007/s11235-013-9722-1