Compensation based ON/OFF energy saving through dominant sets

Compensation based ON/OFF energy saving is an important energy saving technique that is foreseen for future evolutions of LTE-A systems and networks [1]. In this ON/OFF scheme, energy saving is achieved by switching OFF a specific subset of the base stations of a given deployment (ES base station) and maintaining the complementary subset (compensation base stations) for coverage compensation. State of the art solutions for finding compensation and ES base stations are based on two level network planning [1]. In this paper, it is proposed to find these sets as dominant sets over a compensation graph obtained from user terminal and/or base stations measurements. This compensation based ON/OFF energy saving scheme is shown to be an effective energy saving technique that provide energy gains around 20% for typical deployments.