A base station ON-OFF switch algorithm with grid-based traffic map in dense 5G network

Next generation cellular networks, especially dense cell deployment, suffer from heavy energy waste during low-traffic periods. The major cause is that base stations are not able to adjust network configuration properly while traffic loads fluctuate temporally and spatially. In this paper, we propose a dense cell base station on-off switch algorithm with grid-based traffic map to improve the energy efficiency. First, a grid-based traffic map construction method is designed in dense cell circumstance with the assistant of Voronoi tessellation and natural neighbor interpolation. Then a low-complexity off-line algorithm that adjusts base station on-off according to different traffic loads is proposed. The simulation results verify the effectiveness of our algorithm.