Delay Analysis for Ethernet Long-Reach Passive Optical Networks

Provided by: Institute of Electrical & Electronic Engineers
Topic: Mobility
Format: PDF
Designing low latency polling schemes is one of the most important parts for Passive Optical Networks (PONs), particularly for Long-Reach PONs (LR-PON) which suffer from long propagation delays. Sophisticated and efficient bandwidth allocation mechanisms are required to cope with the imposed transmission delay in LR-PONs. In this paper, the authors evaluate three dynamic bandwidth allocation methods in terms of transmission delay. Namely, they consider conventional or interleaved polling for traditional PON and two recently introduced scheduling paradigms for next generation LR-PON, i.e., Multi-Thread Polling (MT-P) and Real-Time Polling (RT-P).

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