Multiple-antenna technologies are evolving towards large-scale aperture sizes, extremely
high frequencies, and innovative antenna types. This evolution is giving rise to the …

With the extremely large-scale array XL-array deployed in future wireless systems, wireless
communication and sensing are expected to operate in the radiative near-field region, which …

Near-field communications present new opportunities over near-field channels, however,
the spherical wavefront propagation makes near-field signal processing challenging. In this …

The emerging immersive and autonomous services have posed stringent requirements on
both communications and localization. By considering the great potential of reconfigurable …

Positioning has recently received considerable attention as a key enabler in emerging
applications such as extended reality, unmanned aerial vehicles and smart environments …

In this paper, an efficient near-field channel reconstruction and user equipment (UE)
localization scheme is proposed for extremely large antenna array (ELAA) systems using a …

The extremely large-scale massive multiple-input multiple-output (XL-MIMO) has the
potential to achieve boosted spectral efficiency and refined spatial resolution for future …

This paper addresses the mobility problem in extremely large antenna array (ELAA)
communication systems. In order to account for the performance loss caused by the …

Downlink reconfigurable intelligent surface (RIS)-assisted multi-input-multi-output (MIMO)
systems are considered with far-field, near-field, and hybrid-far-near-field channels …

Reconfigurable intelligent surface (RIS) is a promising technique for millimeter wave
(mmWave) positioning systems. In this letter, we consider multiple mobile users (MUs) …