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Nowadays, real time data transmission, i.e., high priority (HP), over internet is very popular. That is why, Ethernet passive optical networks (EPONs), with the properties of low cost, high speed and high efficiency with quality of service (QoS) have become promising candidates for the next generation broadband access network. To avoid data collision and provide effective bandwidth utilization a medium...
With the progress in optical technology, the span of the Passive Optical Network (PONs) grows from 20 km to 100 km or even larger, known as super PONs or Long Reach PONs (LR-PONs). Because of the long span, an LR-PON can server many Optical Network Units (ONUs). In addition, since Optical Line Terminal (OLT) and ONUs are placed at a long distance from each others, the propagation delay of data and...
In this paper, a delay analysis of Intelligent dynamic bandwidth allocation (IDBA) algorithm is studied. The algorithm is hierarchical, where fuzzy logic is used in the intra-optical network unit (ONU) to enhance the bandwidth utilization while reducing its delay. We compare the IDBA with the most referenced DBA algorithm, Hierarchical IPACT in terms of its delay and cycle time. The results show that...
Long-Reach Passive Optical Network (LRPON) technology seems to be a strong candidate for next generation optical access networks. LRPON aims to combine the advantages of optical metro and access networks before the backbone by offering long feeder distance and high split ratio. On the other hand, long feeder distance causes long propagation delay while together with high split ratio they lead to longer...
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