Dynamic Power Management for 5G Small Cell Base Station

5G networks with small cell base stations are attracting significant attention, and their power consumption is a matter of significant concern. As the increase of the expectation, concern for the power consumption problem arises. To solve the problem, we propose a new dynamic power management method. The proposed method co-optimizes the control of two power-performance knobs: the power of amplifiers and the number of active antennas. For the co-optimization, the relationship between transmission ability and power consumption is modeled. Transmission ability includes both bandwidth and distance. Our method is applied to several cases in which multiple nodes exist at different distances and have dynamic traffic demands in the evaluation. The experimental results reveal the effectiveness of our method.