Energy consumption evaluation for LTE scheduling algorithms

Reducing energy consumption over mobile networks and devices is an important and challenging issue. On the one hand, power is a limited resource on mobile devices and its usage should be optimized. On the other hand, energy consumption constitutes an important item within operating expenditure (OPEX) for network providers. In the literature, many studies are dedicated to evaluate scheduling mechanisms from the energy consumption perspective. However, most of these only consider few well known schemes such as Proportional Fair, Best-CQI and Round Robin. In the paper, we extend these studies to include new promising scheduling techniques such as PF, EXP-PF and MLWDF algorithm. In addition, we consider multiple metrics related to QoS, energy and fairness. Performance results show that MLWDF is more energy efficient than EXP-PF and PF schemes while providing better QoS for users.