# Hybrid beamforming for single carrier mmWave MIMO systems

## TL;DR

This paper proposes a hybrid beamforming scheme for single carrier mmWave MIMO systems that uses alternating minimization to optimize performance, addressing hardware constraints and improving upon conventional methods.

## Contribution

It introduces a novel hybrid beamforming design specifically for single carrier mmWave systems, utilizing an alternating minimization approach based on MMSE criteria.

## Key findings

- Proposed scheme outperforms conventional HBF for SC systems.
- Efficient optimization method reduces hardware complexity.
- Simulation results validate improved system performance.

## Abstract

Hybrid analog and digital beamforming (HBF) has been recognized as an attractive technique offering a tradeoff between hardware implementation limitation and system performance for future broadband millimeter wave (mmWave) communications. In contrast to most current works focusing on the HBF design for orthogonal frequency division multiplexing based mmWave systems, this paper investigates the HBF design for single carrier (SC) systems due to the advantage of low peak-to-average power ratio in transmissions. By applying the alternating minimization method, we propose an efficient HBF scheme based on the minimum mean square error criterion. Simulation results show that the proposed scheme outperforms the conventional HBF scheme for SC systems.