The Research on Energy-saving Technology of the Set Covering Base Station in Cellular Networks

ABSTRACT

The flow distribution of cellular networks fluctuates according to the changes of time and space, and this phenomenon makes the low utilization rate of some base stations. Although the base stations’ utilization rate is low, it causes the large energy consumption. The CSO can save the energy of base stations according to the load, but it is influenced by the load and the sequence of base stations. Aiming at energy-saving, this paper proposes a centralized-greedy-add algorithm based on taking the closure of base stations as the limited capacity set covering model. The simulation under Urban- Micro (UMi) shows that the energy-saving effect obtains a great improvement compared to the sequence method based on loads.

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