Joint optimal beamforming and power control in cell-free massive MIMO
Information Theory
2022-09-01 v3 Signal Processing
math.IT
Abstract
We derive a fast and optimal algorithm for solving practical weighted max-min SINR problems in cell-free massive MIMO networks. For the first time, the optimization problem jointly covers long-term power control and distributed beamforming design under imperfect cooperation. In particular, we consider user-centric clusters of access points cooperating on the basis of possibly limited channel state information sharing. Our optimal algorithm merges powerful power control tools based on interference calculus with the recently developed team theoretic framework for distributed beamforming design. In addition, we propose a variation that shows faster convergence in practice.
Cite
@article{arxiv.2208.01385,
title = {Joint optimal beamforming and power control in cell-free massive MIMO},
author = {Lorenzo Miretti and Renato Luis Garrido Cavalcante and Slawomir Stanczak},
journal= {arXiv preprint arXiv:2208.01385},
year = {2022}
}