Infokommunikacionnye tehnologiiInfokommunikacionnye tehnologii2073-3909Povolzhskiy State University of Telecommunications and Informatics5625310.18469/ikt.2017.15.4.05Research ArticleENERGY SAVING POTENTIAL ESTIMATION FOR TDM-PONRoslyakovAlexandr Vladimirovicharosl@mail.ruPovolzhsky State University of Telecommunications and Informatics1512201715434935420122020Copyright © 2017, Roslyakov A.V.2017Energy saving in the information and communication technology field is an important problem identified while designing Future Networks. To reduce energy consumption, it is important to analyze it at each stage of the lifecycle. In case of networks the in-use mode is primarily considered because energy consumption in this mode is usually the major issue for always-on network equipment. The energy consumption of this mode can be controlled by network architecture, capabilities and operations. The article describes the method of measuring power consumption of passive optical network (PON) equipment with time division multiplexing (TDM). Analysis method is based on the ITU Recommendations Y.3021 and Y.3022. Evaluation of potential energy savings is performed for the Gigabit Passive Optical Network equipment of Eltex Russian company using sleep and cyclic sleep modes. The results of the analysis show that the power consumption of the passive optical network can be reduced to 30% when using sleep mode and up to 50% in cyclic sleep mode with an average network load.Future NetworksPassive Optical Network TDM-PONenergy consumptionenergy savingsleep modecyclic sleep modeбудущие сетипассивная оптическая сеть TDM-PONэнергопотреблениеэнергосбережениедремлющий режимрежим циклического сна[Росляков А.В., Ваняшин С.В. Будущие сети (Future Networks). Самара: Изд-во ПГУТИ, 2015. - 274 с.][Recommendation ITU-T Y.3001: Future Networks: Objectives and design goals (05/2011).][Recommendation ITU-T Y.3021: Framework of energy saving for future networks (01/2012).][Росляков А.В. Оценка энергопотребления будущих сетей // Электросвязь. №8, 2016. - С. 44-51.][Росляков А.В. Оценка энергоэффективности будущих сетей // Информационные технологии и телекоммуникации. Вып. 3 (11), 2015. - С. 54-64.][Recommendation ITU-T Y.3022: Measuring energy in networks (08/2013).][Zhang Y., Chowdhury P., Tornatore M. et al. Energy Efficiency in Telecom Optical Networks, IEEE Communication Surveys and Tutorials. Vol. 12, №4, 2010. - Р. 441-458. doi: 10.1109/SURV.2011.062410.00034.][Li J., Lee K-L. Chan C. et al. Dynamic Power Management at the Access Node and Customer Premises in Point-to-Point and Time-Division Optical Access // IEEE Journal on Selected Areas in Communications. 2014, Vol. 32, №8, 2014. - Р. 1575-1584. doi: 10.1109/JSAC.2014.2335333.][Kubo R., Kani J., Ujikawa H. et al. Hybrid Power-saving Mechanism with Cyclic Sleep and Adaptive Link Rate Functions for 10G-EPON Systems // Electronics Letters. Vol. 46, №13, 2010. - Р. 934-936. 1. doi: 10.1049/el.2010.0867][Сайт компании Eltex. Оборудование GPON. OLT MA4000-PX // URL: http://www.eltex. nsk.ru /catalog/ma4000-px.php (д.о.10.01.2017).][Сайт компании Eltex. Оборудование GPON. ONT NTP-2 // URL: http://www.eltex.nsk.ru /catalog/ntp-2.php (д.о. 10.01.2017).]