BS Deployment Strategy and Energy Efficient BS Switching in Heterogeneous Networks for 5G

Heterogeneous small cell networks have been regarded as a promising approach that can reduce energy consumption in order to increase the overall capacity of the system and meet increasing traffic demand. In a heterogeneous small cell network, by deploying a small cell base station in the service range of the macro BS, the coverage of the existing macro BS can be improved and the capacity of the entire network can be extended. However, cellular network accounts for more than 10% of the total carbon footprint of information and communication technology (ICT) business, and BS accounts for more than 50% in ICT business. Therefore, in this paper, focusing on minimizing power consumption of BS, we provide a survey on BS positioning strategy and BS switching strategy.