Active-time reduction of base stations for energy reduction using estimated terminal position via wireless-communication signals

This paper proposes an active-time-reduction technique of base stations for energy reduction using terminal position information estimated from wireless-communication signals. Although high-frequency wireless communication system requires dense deployment of base stations, the system is enabled to detect terminal position from communication signals. The proposed technique was evaluated using a formula car as an example of a high-speed mobility environment. The results indicate the base-station active time decreased by about 59% without any degradation in transmission performance, suggesting that the proposed technique can reduce power consumption of base stations.