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This article gives an overview on the state of the art of the different options to save energy in copper-based broadband access nodes while maintaining performance and QoS. The main focus is on the potential energy saving in the physical layer and the access network architecture. We show that today the physical layer, when not optimized properly, is one of the main sources of energy consumption in...
The impact of broadband access network migration on the power and energy consumption is studied by establishing an analytic migration model. The results show that power-aware strategies are necessary for efficient broadband access network migration.
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