Reconfigurable intelligent surfaces (RISs) are regarded as a promising emerging hardware
technology to improve the spectrum and energy efficiency of wireless networks by artificially …

Many questions of fundamental interest in today's science can be formulated as inference
problems: some partial, or noisy, observations are performed over a set of variables and the …

In this letter, we consider the problem of channel estimation for large intelligent metasurface
(LIM) assisted massive multiple-input multiple-output (MIMO) systems. The main challenge …

Optimally extracting the advantages available from reconfigurable intelligent surfaces (RISs)
in wireless communications systems requires estimation of the channels to and from the RIS …

Reconfigurable intelligent surface (RIS) is envisioned to be an essential component of the
paradigm for beyond 5G networks as it can potentially provide similar or higher array gains …

Intelligent reflecting surfaces (IRSs) tune wireless environments to increase spectrum and
energy efficiencies. In view of much recent attention to the IRS concept as a promising …

A denoising algorithm seeks to remove noise, errors, or perturbations from a signal.
Extensive research has been devoted to this arena over the last several decades, and as a …

Over the last decade or so, Approximate Message Passing (AMP) algorithms have become
extremely popular in various structured high-dimensional statistical problems. Although the …

Reconfigurable intelligent surfaces (RISs) have been recently considered as a promising
candidate for energy-efficient solutions in future wireless networks. Their dynamic and low …

Large intelligent surface (LIS) has emerged as a promising new solution to improve the
energy and spectrum efficiency of wireless networks. A LIS, composed of a large number of …