28 September 2015 Energy efficiency evaluation of tree-topology 10 gigabit ethernet passive optical network and ring-topology time- and wavelength-division-multiplexed passive optical network
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Abstract
Higher capacity and larger scales have always been the top targets for the evolution of optical access networks, driven by the ever-increasing demand from the end users. One thing that started to attract wide attention not long ago, but with at least equal importance as capacity and scale, is energy efficiency, a metric essential nowadays as human beings are confronted with severe environmental issues like global warming, air pollution, and so on. Here, different from the conventional energy consumption analysis of tree-topology networks, we propose an effective energy consumption calculation method to compare the energy efficiency of the tree-topology 10 gigabit ethernet passive optical network (10G-EPON) and ring-topology time- and wavelength-division-multiplexed passive optical network (TWDM-PON), two experimental networks deployed in China. Numerical results show that the ring-topology TWDM-PON networks with 2, 4, 8, and 16 wavelengths are more energy efficient than the tree-topology 10G-EPON, although 10G-EPON consumes less energy. Also, TWDM-PON with four wavelengths is the most energy-efficient network candidate and saves 58.7% more energy than 10G-EPON when fully loaded.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Jingjing Song, Jingjing Song, Chuanchuan Yang, Chuanchuan Yang, Qingxiang Zhang, Qingxiang Zhang, Zhuang Ma, Zhuang Ma, Xingang Huang, Xingang Huang, Dan Geng, Dan Geng, Ziyu Wang, Ziyu Wang, } "Energy efficiency evaluation of tree-topology 10 gigabit ethernet passive optical network and ring-topology time- and wavelength-division-multiplexed passive optical network," Optical Engineering 54(9), 090502 (28 September 2015). https://doi.org/10.1117/1.OE.54.9.090502 . Submission:
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