Utility Fair Optimisation of Antenna Tilt Angles in LTE Networks

摘要

We formulate adaptation of antenna tilt angle as a utility fair optimisationtask. This optimisation problem is non-convex, but in this paper we show thatunder reasonable conditions it can be reformulated as a convex optimisation.Using this insight, we develop a lightweight method for finding the optimalantenna tilt angles, making use of measurements which are already available atbase stations, and suited to distributed implementation.