5 papers · 1 filter
Analysis of Non-Separable Scattering in WDM-Based NLoS Holographic MIMO
Ashutosh Prajapati, Prathapasinghe Dharmawansa, Italo Atzeni
Although scattering is inherently non-separable, holographic multiple-input multiple-output channels are commonly modeled using separable scattering across the source and receiver.…
Robust Near-Field Beam Focusing Under Imperfect Localization
Nima Mozaffarikhosravi, Amirhossein Azarbahram, Prathapasinghe Dharmawansa +1
The transition to 6G-and-beyond wireless systems with large-scale antenna arrays and high-frequency deployments significantly extends the near-field region, where channels exhibit…
The Effect of Noise Correlation on MMSE Channel Estimation in One-Bit Quantized Systems
Minhua Ding, Prathapasinghe Dharmawansa, Italo Atzeni +1
This paper analyzes the impact of spatially correlated additive noise on the minimum mean-square error (MMSE) estimation of multiple-input multiple-output (MIMO) channels from one-…
LoS+NLoS Holographic MIMO: Analysis and Application of Wavenumber-Division Multiplexing
Ashutosh Prajapati, Prathapasinghe Dharmawansa, Marco Di Renzo +1
Holographic multiple-input multiple-output (MIMO) enables electrically large continuous apertures, overcoming the physical scaling limits of conventional MIMO architectures with ha…
Wavenumber-Division Multiplexing in Holographic MIMO with NLoS Channels
Ashutosh Prajapati, Prathapasinghe Dharmawansa, Marco Di Renzo +1
Wavenumber-division multiplexing (WDM) was introduced as a counterpart of orthogonal frequency-division multiplexing in the spatial-frequency domain for line-of-sight holographic m…