Deep Learning for Multi-User Proactive Beam Handoff: A 6G Application

Abstract

This paper demonstrates the use of deep learning and time series data generated from user equipment (UE) beam measurements and positions collected by the base station (BS) to enable handoffs between beams that belong to the same or different BSs. We propose the use of long short-term memory (LSTM) recurrent neural networks with three different approaches and vary the number of number of lookbacks of the beam measurements to study the prediction accuracy. Simulations show that at a sufficiently large number of lookbacks, the UE positions become irrelevant to the prediction accuracy since the LSTMs are able to learn the optimal beam based on implicitly defined positions from the time-defined trajectories.Comment: 22 pages, 9 figures. Submitted to IEEE Transactions on Communication