44 citations · 45 across the 3 of their papers we have counts for
10 papers · 1 filter
MIMO Capacity Maximization with Beyond-Diagonal RIS
Ignacio Santamaria, Mohammad Soleymani, Eduard Jorswieck +1
This paper addresses the problem of maximizing the capacity of a multiple-input multiple-output (MIMO) link assisted by a beyond-diagonal reconfigurable intelligent surface (BD-RIS…
Maximizing Spectral and Energy Efficiency in Multi-user MIMO OFDM Systems with RIS and Hardware Impairment
Mohammad Soleymani, Ignacio Santamaria, Aydin Sezgin +1
An emerging technology to enhance the spectral efficiency (SE) and energy efficiency (EE) of wireless communication systems is reconfigurable intelligent surface (RIS), which is sh…
Maximization of minimum rate in MIMO OFDM RIS-assisted Broadcast Channels
Mohammad Soleymani, Ignacio Santamaria, Aydin Sezgin +1
Reconfigurable intelligent surface (RIS) is a promising technology to enhance the spectral efficiency of wireless communication systems. By optimizing the RIS elements, the perform…
NOMA-based Improper Signaling for MIMO STAR-RIS-assisted Broadcast Channels with Hardware Impairments
Mohammad Soleymani, Ignacio Santamaria, Eduard Jorswieck
This paper proposes schemes to improve the spectral efficiency of a multiple-input multiple-output (MIMO) broadcast channel (BC) with I/Q imbalance (IQI) at transceivers by employi…
SNR Maximization in Beyond Diagonal RIS-assisted Single and Multiple Antenna Links
Ignacio Santamaria, Mohammad Soleymani, Eduard Jorswieck +1
Reconfigurable intelligent surface (RIS) architectures not limited to diagonal phase shift matrices have recently been considered to increase their flexibility in shaping the wirel…
Energy-efficient Rate Splitting for MIMO STAR-RIS-assisted Broadcast Channels with I/Q Imbalance
Mohammad Soleymani, Ignacio Santamaria, Eduard Jorswieck
This paper proposes an energy-efficient scheme for multicell multiple-input, multiple-output (MIMO) simultaneous transmit and reflect (STAR) reconfigurable intelligent surfaces (RI…