The accuracy of channel state information (CSI) acquisition directly affects the performance
of millimeter wave (mmWave) communications. In this article, we provide an overview on …

This paper proposes a model-driven deep learning (MDDL)-based channel estimation and
feedback scheme for wideband millimeter-wave (mmWave) massive hybrid multiple-input …

A comprehensive approach for opportunistic navigation with fifth-generation (5G) cellular
signals that exploits the downlink channel is developed. The structure of possible 5G …

Unmanned aerial vehicle (UAV) has been widely used in many fields and is arousing global
attention. As the resolution of the equipped sensors in the UAV becomes higher and the …

In an aerial hybrid massive multiple-input multiple-output (MIMO) and orthogonal frequency
division multiplexing (OFDM) system, how to design a spectral-efficient broadband multi …

The Terahertz band is envisioned to meet the demanding 100 Gbps data rates for 6G
wireless communications. Aiming at combating the distance limitation problem with low …

Terahertz (0.1-10 THz) wireless communications are expected to meet 100+ Gbps data rates
for 6G communications. Being able to combat the distance limitation with reduced hardware …

Hybrid analog-digital (HAD) architecture is widely adopted in practical millimeter wave
(mmWave) massive multiple-input multiple-output (MIMO) systems to reduce hardware cost …

A receiver architecture is proposed to cognitively extract navigation observables from fifth
generation (5G) new radio (NR) signals of opportunity. Unlike conventional opportunistic …

A receiver capable of estimating the Doppler and azimuth direction-of-arrival (DOA) of
Iridium NEXT low Earth orbit (LEO) signals of opportunity (SOPs) is presented. The …