Energy-optimal base station density considering traffic dynamics

Optimal base station (BS) density, to minimise network energy consumption, is studied. Contrary to previous works, both the spatial randomness of the network topology and the wireless traffic dynamics are taken into consideration. With the technology of cell discontinuous transmission, network energy consumption depends on the average transmission probability of BSs. On the basis of stochastic geometry, it is found that the BS transmission probability and BS density satisfy a nonlinear equation. To reduce overall energy consumption, an iteration algorithm that can converge to the global optimal BS density is proposed.