Extremely large-scale (XL) massive multiple-input multiple-output (MIMO) antenna array is
envisioned as a critical technology for future wireless communication systems. To effectively …

We estimate the uplink channel of an extra large-scale multiple-input-multiple-output (XL-
MIMO) system, with the base station (BS) consisting of multiple antenna sub-arrays. The BS …

This letter investigates the three-dimensional (3D) downlink sparse channel estimation for
tethered aerial platform-enabled multi-user communication systems operating in a frequency …

3D holographic communication has the potential to revolutionize the way people interact
with each other in virtual spaces, offering immersive and realistic experiences. However …

In this study, the problem of sparse channel estimation is investigated with the employment
of a fully distributed approach. We exploit the spatially joint sparsity structure of the involved …

To realize massive multiple-input multiple-output (MIMO) systems, the uniform planar array
(UPA) structure has been adopted to deploy a large number of antennas in a limited area of …

This paper investigates the three-dimensional (3D) downlink sparse channel estimation for
tethered aerial platformenabled multi-user communication systems operating in a frequency …