Abstract
Long-Reach PON (LR-PON) is a broadband access network using passive optical network (PON) technology which the reach is extended to 100 km or higher. A major challenge in LR-PON is that the propagation delay between OLT and ONUs is increased by a very significant amount. We analyze the delay performance of fixed multi-thread algorithm, which is simple and efficient, for dynamic bandwidth allocation in long reach PON. Especially, the average packet delay of the expedited forwarding (EF) traffic class is analyzed. This performance analysis reveals that fixed multi-thread algorithm for DBA in long reach PON provides predictable packet delay and improved jitter performance for the EF traffic class without the influence of load variations.
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