ONU migration in dynamic Time and Wavelength Division Multiplexed Passive Optical Network (TWDM-PON).
ONU migration in dynamic Time and Wavelength Division Multiplexed Passive Optical Network (TWDM-PON).
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DOI：
10.1364/oe.21.021491
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发表时间：
2013-09
期刊：
影响因子：
3.8
通讯作者：
Hongyang Yang;Weiqiang Sun;Weisheng Hu;Jun Li
中科院分区：
文献类型：
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作者：
Hongyang Yang;Weiqiang Sun;Weisheng Hu;Jun Li
我们提出了一种新的光网络单元（ONU）迁移机制的时间和波分复用PON（TWDM-PON）框架内重新安排工作的ONU的波长数最少，并关闭其余的，以节省电力。我们通过仿真表明，工作波长的数量可以最小化到一个理论下限，例如23%，在典型的ONU在线配置文件。我们进一步研究迁移间隔和延迟如何影响用户的服务水平协议（SLA）。我们发现，在示例ONU在线配置文件下，99.99%的ONU SLA可以实现1000毫秒的迁移延迟。然而，为了实现99.999%的ONU SLA，迁移延迟必须为100毫秒或更低。
We propose a novel Optical Network Units (ONU) migration mechanism within the Time and Wavelength Division Multiplexed PON (TWDM-PON) framework by rearranging the working ONUs to a minimum number of wavelengths and turning off the rest to save power. We show through simulation that the number of working wavelengths can be minimized up to a theoretical lower bound, e.g. 23%, under the typical ONU online profiles. We further investigate how the migration interval and delay influence the user Service Level Agreement (SLA). We find that under the example ONU online profiles, 99.99% ONU SLA can be realized with the migration delay of 1000 milli-seconds. However to realize 99.999% ONU SLA, the migration delay must be 100 milli-seconds or lower.