A survey on hybrid beamforming techniques in 5G: Architecture and system model perspectives

I Ahmed, H Khammari, A Shahid… - … Surveys & Tutorials, 2018 - ieeexplore.ieee.org
The increasing wireless data traffic demands have driven the need to explore suitable
spectrum regions for meeting the projected requirements. In the light of this, millimeter wave …

Dynamic RF chain selection for energy efficient and low complexity hybrid beamforming in millimeter wave MIMO systems

A Kaushik, J Thompson, E Vlachos… - IEEE Transactions …, 2019 - ieeexplore.ieee.org
This paper proposes a novel architecture with a framework that dynamically activates the
optimal number of radio frequency (RF) chains used to implement hybrid beamforming in a …

Hardware efficient joint radar-communications with hybrid precoding and RF chain optimization

A Kaushik, C Masouros, F Liu - ICC 2021-IEEE International …, 2021 - ieeexplore.ieee.org
In this paper, we aim to achieve energy efficient design with minimum hardware requirement
for hybrid precoding, which enables a large number of antennas with minimal number of RF …

Joint bit allocation and hybrid beamforming optimization for energy efficient millimeter wave MIMO systems

A Kaushik, E Vlachos, C Tsinos… - IEEE Transactions …, 2020 - ieeexplore.ieee.org
In this article, we aim to design highly energy efficient end-to-end communication for
millimeter wave multiple-input multiple-output systems. This is done by jointly optimizing the …

Taxonomy and performance evaluation of hybrid beamforming for 5G and beyond systems

M Rihan, TA Soliman, C Xu, L Huang… - IEEE Access, 2020 - ieeexplore.ieee.org
Increasing demand for higher data-rate wireless connectivity with lower latency is fueling the
explorations of millimeter-wave (mmWave) spectrum and massive MIMO communications …

Towards 6G: Spectrally efficient joint radar and communication with radio frequency selection, interference and hardware impairments

A Kaushik, E Vlachos, J Thompson… - IET Signal …, 2022 - Wiley Online Library
The joint radar‐communication (JRC) system is envisioned as an emerging sixth generation
(6G) technology to tackle spectral congestion and hardware limitations by jointly …

Efficient channel estimation in millimeter wave hybrid MIMO systems with low resolution ADCs

A Kaushik, E Vlachos, J Thompson… - 2018 26th European …, 2018 - ieeexplore.ieee.org
This paper proposes an efficient channel estimation algorithm for millimeter wave
(mmWave) systems with a hybrid analog-digital multiple-input multiple-output (MIMO) …

Energy efficient transmitter with low resolution DACs for massive MIMO with partially connected hybrid architecture

E Vlachos, A Kaushik… - 2018 IEEE 87th Vehicular …, 2018 - ieeexplore.ieee.org
Millimeter wave (mmWave) multiple-input multiple-output (MIMO) systems have recently
been proposed to meet the needs of the future wireless communication standards. The …

Energy efficiency maximization of millimeter wave hybrid MIMO systems with low resolution DACs

A Kaushik, E Vlachos… - ICC 2019-2019 IEEE …, 2019 - ieeexplore.ieee.org
This paper proposes an energy efficient millimeter wave (mmWave) hybrid multiple-input
multiple-output (MIMO) beamformer with low resolution digital to analog converters (DACs) …

Energy efficient ADC bit allocation and hybrid combining for millimeter wave MIMO systems

A Kaushik, C Tsinos, E Vlachos… - 2019 IEEE Global …, 2019 - ieeexplore.ieee.org
Low resolution analog-to-digital converters (ADCs) can be employed to improve the energy
efficiency (EE) of a wireless receiver since the power consumption of each ADC is …