Title :
Energy efficient discontinuous operation in vectored G.fast
Author :
Maes, Jochen ; Nuzman, C.
Author_Institution :
Alcatel-Lucent, Bell Labs., Holmdel, NJ, USA
Abstract :
Intermittent transmission through low power states and discontinuous operation has been introduced in G.fast to enhance energy efficiency. In combination with vectoring, crosstalk cancellation must be maintained on active lines while other lines are in discontinuous operation. Without precautions, the requirements of vectoring may greatly reduce the power saving potential. We describe methods that allow trading off some of the vectoring gain for additional power saving. Using an energy consumption model, we evaluate the energy/rate trade-off of the methods under various traffic profiles. The method called discontinuous vectoring greatly enhances energy efficiency while incurring smaller data rate loss compared to other methods.
Keywords :
broadband networks; crosstalk; digital subscriber lines; energy conservation; telecommunication power management; active lines; crosstalk cancellation; energy efficient discontinuous operation; intermittent transmission; low power states; power saving potential; Decision support systems; Digital Subscriber Lines; Dynamic Resource Allocation; Energy Efficiency; Vectoring;
Conference_Titel :
Communications (ICC), 2014 IEEE International Conference on
Conference_Location :
Sydney, NSW
DOI :
10.1109/ICC.2014.6883922