Figure 9
From: Fair greening of broadband access: spectrum management for energy-efficient DSL networks
Fair greening simulation results for six-user DSL scenario of Fig. 6a: a Normalized sum data rate performance versus greening for different greening policies, b Normalized data rates (top) and normalized transmit powers (bottom) for six modems (different colors with user 1-6 from left to right) for different greening policies when 50% greening is applied, c Greening fairness index (22) versus greening for different greening policies. For Greening 4B and 4C, the values δ = 4 105 and δ = 90 were used, respectively.