# Joint optimal beamforming and power control in cell-free massive MIMO

arXiv: https://arxiv.org/abs/2208.01385 · HTML: https://mlsanity.com/paper/2208.01385/

## Key facts

- Cited by 1 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 2 Aug 2022.

## Built on by (most cited first, 1 of 1)

- [Learning Optimal Linear Precoding for Cell-Free Massive MIMO with GNN](https://mlsanity.com/paper/2406.04456/) (2024)

## Abstract (arXiv)

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.