Comunicació presentada a: 30th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) celebrat del 8 a l'11 de novembre de 2019 a Istambul, Turquia.

This paper studies the viability of feedforward neural networks (NNs) for centralized power control in the uplink of cell-free wireless systems with matched-filter reception. The formulation relies only on large-scale channel behaviors as inputs, without the need for user location information, and on unsupervised learning, to avoid the onerous precomputation of training data that supervised learning would necessitate for every system or environment modification. Two different power control objectives are entertained, and for both of them the NN closely approximates the optimum solutions produced by convex solvers while vastly reducing the complexity, thereby opening the door to power control implementations for very large systems.

This work was supported by the Maria de Maeztu Units of Excellence Programme (MDM-2015-0502) and by the European Research Council under the H2020 Framework Programme/ERC grant agreement 694974.