DSP-based optical access approaches for enhancing NG-PON2 systems
DSP-based optical access approaches for enhancing NG-PON2 systems
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DOI：
10.1109/mcom.2013.6476866
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发表时间：
2013-03
影响因子：
11.2
通讯作者：
N. Yoshimoto;J. Kani;Sang-Yuep Kim;N. Iiyama;J. Terada
中科院分区：
文献类型：
--
作者：
N. Yoshimoto;J. Kani;Sang-Yuep Kim;N. Iiyama;J. Terada
在下一代PON2或NG-PON2的最新进展中，本文审查了数字信号处理技术，通过实现灵活和成本效益的光学访问网络部署来进一步增强NG-PON2系统。首先，描述了通过启用DSP的高级调制和多路复用方法的灵活速度升级，然后考虑了成本绩效的权衡。接下来，概述了使用基于DSP的数字连贯接收和损伤补偿的扩展。最后，作为一个未来的目标，讨论了具有可重构光线终端和光网络单元的访问网络虚拟化。
Motivated by recent progress in next-generation PON2, or NG-PON2, standardization, this article reviews digital signal processing technologies to further enhance NG-PON2 systems by realizing flexible and cost-effective optical access network deployments. First, flexible speed upgrades by DSP-enabled advanced modulation and multiplexing approaches are described, followed by a consideration of cost-performance trade-offs. Next, reach extension using DSP-based digital coherent reception and impairment compensation is overviewed. Finally, as a future goal, access network virtualization with reconfigurable optical line terminals and optical network units is discussed.