Model for Power Consumption of Wireless Access Networks
The power consumption of wireless access networks will become an important issue in the coming years. In this paper, the power consumption of base stations for mobile WiMAX, fixed WiMAX, UMTS, HSPA, and LTE is modeled and related to the coverage. A new metric, the power consumption per covered area is introduced, to compare the energy efficiency of the considered technologies for a basic reference configuration and a future extended configuration, which makes use of novel MIMO technology. The introduction of MIMO has a positive influence on the energy efficiency: e.g., for a 4x4 MIMO system, per covered area decreases with 63 % for mobile WiMAX and with 50 % for HSPA and LTE, compared to a SISO system.