Enhanced weighted performance based handover optimization in LTE

This paper presents an enhanced version of a self-optimizing algorithm that tunes the handover (HO) parameters of a LTE (Long-Term Evolution) base station in order to diminish the negative effects that can be introduced by handover (radio link failures, HO failures and ping-pong handovers) and improve the overall network performance. While the default algorithm selects the best hysteresis and time-to-trigger combination based on the current network status, the enhancement aims at improving its convergence time. We examined the effects of this enhancement in a rural scenario setting and compare it to the original algorithm; the results show an improvement from the static value settings of this algorithm and faster convergence with due to the enhancement.