The Internet of Things (IoT) is a transformative technology, which is revolutionizing our
everyday life by connecting everyone and everything together. The massive number of …

This article focuses on advancing outdoor wireless systems to better support ubiquitous
extended reality (XR) applications, and close the gap with current indoor wireless …

Extremely large-scale antenna arrays (ELAA) play a critical role in enabling the
functionalities of next generation wireless communication systems. However, as the number …

This paper presents a mutual coupling-based calibration method for time-division-duplex
massive MIMO systems, which enables downlink precoding based on uplink channel …

Distributed antennas must be phase-calibrated (phase-synchronized) for certain operations,
such as reciprocity-based joint coherent downlink beamforming, to work. We use rigorous …

Physical layer channel key generation is a promising technology for secure communication
in wireless network security, which mainly establishes secure communication keys between …

One of the biggest challenges in operating massive multiple-input multiple-output systems is
the acquisition of accurate channel state information at the transmitter. To take up this …

A hybrid analog-digital (AD) beamforming structure is a very attractive solution to build low-
cost massive multiple-input multiple-output systems. Typically, these systems use a set of …

This paper demonstrates the implementation of a space–frequency line coded-orthogonal
frequency-division multiplexing (SFLC-OFDM) system. The SFLC-OFDM system utilizes …

The 6 GHz band plays a crucial role in the development of the 6G. A profound
comprehension of channel reciprocity is essential for designing time division …