Improving Energy Saving in Time-Division Multiplexing Passive Optical Networks Articles uri icon


publication date

  • February 2013

start page

  • 23

end page

  • 31


  • 1


  • 17

International Standard Serial Number (ISSN)

  • 1089-7801

Electronic International Standard Serial Number (EISSN)

  • 1941-0131


  • This article proposes a time-division multiplexing passive optical network (TDM-PON) architecture in which optical network units (ONUs) enter active mode only when the optical line terminal has traffic to deliver. The authors use a hybrid ONU (H-ONU) equipped with a low-cost, low-energy IEEE 802.15.4 module. This module notifies H-ONUs when they should move from sleep to active mode to receive downstream traffic. The authors show that the proposed solution leads to a significant energy saving while satisfying PON delay requirements.