Cell planning based on minimized power consumption for LTE networks

The problem is to obtain the optimal number of base stations (BSs) and their locations on minimized power consumption with requirements of coverage rate and cell load. In this paper, we propose a mathematical model of evaluation index for cell planning and identify the optimization problem. The system model characterizes the total power consumption of planning area, taking into account the radio power, baseband power and cooling system loss. Two other problems, base station number search algorithm and cell sites planning with fixed cell number, are provided to solve the original problem. Simulation result proves that the algorithm enables to find a suboptimal solution, which relatively decreases the total power consumption under the planning constraints.