A nesting ranging algorithm for a Hybrid WDM/TDM PON with colorless Reflective-ONUs under different distances OLT-ONUs

A nesting ranging algorithm for a Hybrid WDM/TDM PON with colorless Reflective-ONUs under... To reduce costs and cumbersome laser provisioning at the Optical Network Unit (ONU) user level in an access Passive Optical Network (PON), the use of a Reflective-ONU (R-ONU) is a good choice for up-data transmission. An optical carrier is sent by the Optical Line Terminal (OLT) at the Central Office, and a device at the ONU modulates the carrier with the upstream data. This allows all ONUs to be equal and colorless, without a light source in a Hybrid WDM/TDM architecture. A Dynamic Bandwidth Allocation is placed at the OLT, managing the lasers and photodetectors shared by all R-ONUs. The OLT laser and photodetector employed in an up-data transmission must be tuned for each ONU and a particular Round Trip Time (RTT), which is twice the propagation time from OLT to ONU. When an R-ONU is served by a laser, the photodetector must also be available after the RTT to demodulate the up-data. We propose a novel nesting ranging algorithm to deal with large different distances OLT–ONUs avoiding collisions and minimizing the delay under Priority Queuing with Quality of Service (QoS). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Photonic Network Communications Springer Journals

A nesting ranging algorithm for a Hybrid WDM/TDM PON with colorless Reflective-ONUs under different distances OLT-ONUs

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Publisher
Springer US
Copyright
Copyright © 2008 by Springer Science+Business Media, LLC
Subject
Computer Science; Computer Communication Networks; Electrical Engineering; Characterization and Evaluation of Materials
ISSN
1387-974X
eISSN
1572-8188
D.O.I.
10.1007/s11107-008-0114-5
Publisher site
See Article on Publisher Site

References

  • An all-optical access-metro interface for Hybrid WDM/TDM PON based on OBS
    Segarra, J.; Sales, V.; Prat, J.

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