A centrally-controlled intelligent protection switching scheme for WDM-PONs
Several protection schemes have been proposed for wavelength division multiplexed passive optical networks (WDM-PONs). However these schemes only work under the assumption that all the optical network units (ONUs) and the optical light terminal (OLT) continuously transmit optical signals. In practic...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/84644 http://hdl.handle.net/10220/11823 |
| _version_ | 1826124580161323008 |
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| author | Zhong, Wende Zhu, Min. Xiao, Shilin. |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Zhong, Wende Zhu, Min. Xiao, Shilin. |
| author_sort | Zhong, Wende |
| collection | NTU |
| description | Several protection schemes have been proposed for wavelength division multiplexed passive optical networks (WDM-PONs). However these schemes only work under the assumption that all the optical network units (ONUs) and the optical light terminal (OLT) continuously transmit optical signals. In practice, some ONUs may be in sleep mode to save power consumption or may be shut down whenever users are offline. Under such scenarios, the existing schemes would not work. To deal with more practical operation scenarios, we propose a centrally controlled intelligent protection switching scheme for survivable WDM-PONs. It provides 1:1 downstream protection and 1+1 upstream protection capabilities. A novel logic decision unit in conjunction with a power monitoring unit is implemented in the OLT to enable the intelligent protection switching in more practical operation scenarios. Moreover, by monitoring the optical power of each channel on both working and protection paths, our proposed protection scheme can tell the connection status of every fiber path, thus facilitating a faster failure recovery. The scheme feasibility is experimentally verified with 10 Gbit/s downstream and 1.25 Gbit/s upstream transmissions. |
| first_indexed | 2024-10-01T06:23:02Z |
| format | Conference Paper |
| id | ntu-10356/84644 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:23:02Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/846442020-03-07T13:24:44Z A centrally-controlled intelligent protection switching scheme for WDM-PONs Zhong, Wende Zhu, Min. Xiao, Shilin. School of Electrical and Electronic Engineering IEEE International Conference on Communications in China (1st : 2012 : Beijing, China) DRNTU::Engineering::Electrical and electronic engineering Several protection schemes have been proposed for wavelength division multiplexed passive optical networks (WDM-PONs). However these schemes only work under the assumption that all the optical network units (ONUs) and the optical light terminal (OLT) continuously transmit optical signals. In practice, some ONUs may be in sleep mode to save power consumption or may be shut down whenever users are offline. Under such scenarios, the existing schemes would not work. To deal with more practical operation scenarios, we propose a centrally controlled intelligent protection switching scheme for survivable WDM-PONs. It provides 1:1 downstream protection and 1+1 upstream protection capabilities. A novel logic decision unit in conjunction with a power monitoring unit is implemented in the OLT to enable the intelligent protection switching in more practical operation scenarios. Moreover, by monitoring the optical power of each channel on both working and protection paths, our proposed protection scheme can tell the connection status of every fiber path, thus facilitating a faster failure recovery. The scheme feasibility is experimentally verified with 10 Gbit/s downstream and 1.25 Gbit/s upstream transmissions. 2013-07-18T02:21:27Z 2019-12-06T15:48:53Z 2013-07-18T02:21:27Z 2019-12-06T15:48:53Z 2012 2012 Conference Paper Zhu, M., Zhong, W., & Xiao, S. (2012). A centrally-controlled intelligent protection switching scheme for WDM-PONs. 2012 1st IEEE International Conference on Communications in China (ICCC). https://hdl.handle.net/10356/84644 http://hdl.handle.net/10220/11823 10.1109/ICCChina.2012.6356887 en © 2012 IEEE. |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering Zhong, Wende Zhu, Min. Xiao, Shilin. A centrally-controlled intelligent protection switching scheme for WDM-PONs |
| title | A centrally-controlled intelligent protection switching scheme for WDM-PONs |
| title_full | A centrally-controlled intelligent protection switching scheme for WDM-PONs |
| title_fullStr | A centrally-controlled intelligent protection switching scheme for WDM-PONs |
| title_full_unstemmed | A centrally-controlled intelligent protection switching scheme for WDM-PONs |
| title_short | A centrally-controlled intelligent protection switching scheme for WDM-PONs |
| title_sort | centrally controlled intelligent protection switching scheme for wdm pons |
| topic | DRNTU::Engineering::Electrical and electronic engineering |
| url | https://hdl.handle.net/10356/84644 http://hdl.handle.net/10220/11823 |
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