# Deep Reinforcement Learning for 5G Networks: Joint Beamforming, Power Control, and Interference Coordination

## TL;DR

This paper introduces a deep reinforcement learning approach to jointly optimize beamforming, power control, and interference coordination in 5G networks, significantly improving SINR and sum-rate capacity in realistic scenarios.

## Contribution

The paper formulates a non-convex optimization problem for 5G resource management and proposes a deep Q-learning based algorithm that outperforms industry standards.

## Key findings

- Outperforms link adaptation standards for sub-6 GHz voice bearers.
- Approaches maximum sum-rate capacity for mmWave data bearers.
- Achieves these improvements with less than 4% of the traditional runtime.

## Abstract

The fifth generation of wireless communications (5G) promises massive increases in traffic volume and data rates, as well as improved reliability in voice calls. Jointly optimizing beamforming, power control, and interference coordination in a 5G wireless network to enhance the communication performance to end users poses a significant challenge. In this paper, we formulate the joint design of beamforming, power control, and interference coordination as a non-convex optimization problem to maximize the signal to interference plus noise ratio (SINR) and solve this problem using deep reinforcement learning. By using the greedy nature of deep Q-learning to estimate future rewards of actions and using the reported coordinates of the users served by the network, we propose an algorithm for voice bearers and data bearers in sub-6 GHz and millimeter wave (mmWave) frequency bands, respectively. The algorithm improves the performance measured by SINR and sum-rate capacity. In realistic cellular environments, the simulation results show that our algorithm outperforms the link adaptation industry standards for sub-6 GHz voice bearers. For data bearers in the mmWave frequency band, our algorithm approaches the maximum sum-rate capacity, but with less than 4% of the required run time.