Delay-phase precoding for wideband THz massive MIMO

L Dai, J Tan, Z Chen, HV Poor - IEEE Transactions on Wireless …, 2022 - ieeexplore.ieee.org
Benefiting from tens of GHz of bandwidth, terahertz (THz) communication has become a
promising technology for future 6G network. To deal with the serious propagation loss of THz …

Wideband beam tracking in THz massive MIMO systems

J Tan, L Dai - IEEE Journal on Selected Areas in …, 2021 - ieeexplore.ieee.org
Terahertz (THz) massive multiple-input multiple-output (MIMO) has been considered as one
of the promising technologies for future 6G wireless communications. It is essential to obtain …

A survey of millimeter-wave communication: Physical-layer technology specifications and enabling transmission technologies

S He, Y Zhang, J Wang, J Zhang, J Ren… - Proceedings of the …, 2021 - ieeexplore.ieee.org
Millimeter-wave (mmWave) frequency bands, which offer abundant underutilized spectral
resources, have been explored and exploited in the past several years to meet the …

Fast beam training with true-time-delay arrays in wideband millimeter-wave systems

V Boljanovic, H Yan, CC Lin… - … on Circuits and …, 2021 - ieeexplore.ieee.org
The best beam steering directions are estimated through beam training, which is one of the
most important and challenging tasks in millimeter-wave and sub-terahertz communications …

Prospects and challenges of THz precoding

R GUO, Y TANG, C ZHANG, S LIU… - Chinese Journal of …, 2022 - Wiley Online Library
Terahertz (THz) communications are considered as very promising for the sixth‐generation
(6G) ultra‐dense wireless networks. However, THz signals suffer from well‐known severe …

Accurate beam training for RIS-assisted wideband terahertz communication

Y Chen, J Tan, M Hao, R MacKenzie… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Terahertz (THz) communications have been widely considered as one of the promising
technologies for future 6G wireless systems. In order to cope with the high path loss in THz …

Joint phase-time arrays: A paradigm for frequency-dependent analog beamforming in 6G

VV Ratnam, J Mo, A Alammouri, BL Ng, J Zhang… - IEEE …, 2022 - ieeexplore.ieee.org
Hybrid beamforming is an attractive solution to build cost-effective and energy-efficient
transceivers for millimeter-wave and terahertz systems. However, conventional hybrid …

Multi-mode spatial signal processor with rainbow-like fast beam training and wideband communications using true-time-delay arrays

CC Lin, C Puglisi, V Boljanovic, H Yan… - IEEE Journal of Solid …, 2022 - ieeexplore.ieee.org
Initial access in millimeter-wave (mmW) wireless is critical toward successful realization of
the fifth-generation (5G) wireless networks and beyond. Limited bandwidth in existing …

Wideband beamforming with rainbow beam training using reconfigurable true-time-delay arrays for millimeter-wave wireless [feature]

CC Lin, V Boljanovic, H Yan, E Ghaderi… - IEEE circuits and …, 2022 - ieeexplore.ieee.org
The decadal research in integrated true-time-delay arrays have seen organic growth
enabling realization of wideband beamformers for large arrays with wide aperture widths …

Extending uplink coverage of mmwave and terahertz systems through joint phase-time arrays

A Alammouri, J Mo, VV Ratnam, BL Ng… - IEEE …, 2022 - ieeexplore.ieee.org
In this paper, we establish the potential of joint phase-time arrays (JPTAs) for uplink
coverage extension in cellular systems. JPTA allows the base station (BS) to create …