下一代无源光网络节能关键技术

[摘要] 从网络分层、接入网设备以及新型网络架构3个角度对下一代无源光网络（NG-PON）的节能技术进行分析研究。基于NG-PON的标准工作和节能关键技术，提出了基于网络编码（NC）的NG-PON节能调度机制，实现了不同节能技术之间的综合应用，并在提高节能效率的同时有效提升了网络性能。研究表明不同的NG-PON节能技术既有其各自独立优势和特点，同时也具有交叉和关联性，从而可以以较为综合的方式运用节能技术以降低NG-PON中的能源消耗。

[关键词] 下一代无源光网络；标准化；节能；混合调度机制

[Abstract] In this paper, we analyze key power-saving technologies from the perspective of network hierarchy, access network equipment, and novel network architecture. Based on the above standard and the key technologies of power-saving, we propose a green scheduling mechanism based on network coding in a NG-PON. This mechanism combines various power-saving technologies, improves energy efficiency, and improves network performance. The paper discusses how power-saving technologies are dependent on each other. Interrelations and organic connections of those technologies can provide a flexible, comprehensive way of implementing power-saving technologies.

[Keywords] next-generation passive optical network; standardization; power-saving; hybrid scheduling mechanism