Designing Energy-Efficient Wireless Access Networks: LTE and LTE-Advanced

Margot Deruyck, Wout Joseph, Bart Lannoo, Didier Colle, Luc Martens
2013 IEEE Internet Computing  
As base stations are currently large energy consumers, it is important to investigate their energy efficiency to develop more energy-efficient wireless access networks in the future. This study investigates how energy-efficient LTE-Advanced networks can be designed compared to LTE networks. Therefore, a power consumption model is developed for LTE and LTE-Advanced macrocell and femtocell base stations, along with a suitable energy efficiency measure. The influence on the energy efficiency of
more » ... gy efficiency of three main functionalities added to LTE-Advanced is investigated: carrier aggregation, heterogeneous networks, and extended MIMO support. Our study shows that the energy efficiency can be improved up to 400% and 450% by using, respectively, carrier aggregation and MIMO. For bit rates higher than 20 Mbps, the macrocell base station is the most energyefficient. Below 20 Mbps, it depends on the bit rate.
doi:10.1109/mic.2013.6 fatcat:44s3xk3ssvghjdnwc36bkkafky