光通信研究, 2013 (3): 29, 网络出版: 2013-06-25  

无源光网络能耗效率分析

Energy efficiency analysis for passive optical networks
作者单位
中国科学院 微电子研究所3SOC实验室, 北京100029
摘要
PON(无源光网络)作为下一代接入网重要的接入方案,在能源短缺的今天,其能耗效率理应受到关注。1 bit能量是衡量能耗效率的指标。单用户1 bit能量在PON的P2MP(点对多点)网络中,其增减不仅仅依赖于ONU(光网络单元)接入带宽的变化,还受到OLT(光线路终端)广播有效因子α的影响。通过改进设备以增加带宽,可使1 bit能量总能耗减小,能量利用率得到提高。
Abstract
As Passive Optical Network (PON) is an important access scheme for next generation access networks, much attention ought to be paid to its energy efficiency, especially when energy shortage has become a serious problem in the world today. 1 bit energy is an index for measuring energy efficiency. In PON P2MP networks, the increase or decrease of a single user’s 1 bit energy is not directly dependent on the changes of ONU assess bandwidth as it is also affected by the OLT broadcast effective factor α. Besides, device improvement will lead to bandwidth increase and the reduction of the total consumption of 1 bit energy will enable energy efficiency improvement.

朱丹, 胡国荣. 无源光网络能耗效率分析[J]. 光通信研究, 2013, 39(3): 29. Zhu Dan, Hu Guorong. Energy efficiency analysis for passive optical networks[J]. Study On Optical Communications, 2013, 39(3): 29.

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