Using analog beamforming in mmWave frequency bands we can focus the energy towards a receiver to achieve high throughput. However, this requires the network to quickly find the best downlink beam configuration in the face of non-IID data. We propose a personalized Federated Learning (FL) method to address this challenge, where we learn a mapping between uplink Sub-6GHz channel estimates and the best downlink beam in heterogeneous scenarios with non-IID characteristics. We also devise FedLion, a FL implementation of the Lion optimization algorithm. Our approach reduces the signalling overhead and provides superior performance, up to 33.6 % higher accuracy than a single FL model and 6 % higher than a local model.
Suggested Citation
@inproceedings{isaksson2023mmwave,
title = {{mmWave Beam Selection in Analog Beamforming using Personalized Federated Learning}},
author = {Martin Isaksson and Filippo Vannella and David Sandberg and Rickard C\"{o}ster},
year = 2023,
booktitle = {{IEEE} Future Networks World Forum (FNWF)},
note = {(Best paper award)},
publisher = {{IEEE}},
doi = {10.1109/FNWF58287.2023.10520606}
}Available
mmWave Beam Selection in Analog Beamforming Using Personalized Federated LearningDOI: 10.1109/FNWF58287.2023.10520606