130 citations · 568 across the 23 of their papers we have counts for
4 papers · 1 filter
Constellations on the Sphere with Efficient Encoding-Decoding for Noncoherent Communications
Javier Álvarez-Vizoso, Carlos Beltrán, Ignacio Santamaria +2
In this paper, we propose a new structured Grassmannian constellation for noncoherent communications over single-input multiple-output (SIMO) Rayleigh block-fading channels. The co…
Constrained Riemannian Noncoherent Constellations for the MIMO Multiple Access Channel
Javier Álvarez-Vizoso, Diego Cuevas, Carlos Beltrán +3
We consider the design of multiuser constellations for a multiple access channel (MAC) with K users, with M antennas each, that transmit simultaneously to a receiver equipped with…
Rate Splitting in MIMO RIS-assisted Systems with Hardware Impairments and Improper Signaling
Mohammad Soleymani, Ignacio Santamaria, Eduard Jorswieck
In this paper, we propose an optimization framework for rate splitting (RS) techniques in multiple-input multiple-output (MIMO) reconfigurable intelligent surface (RIS)-assisted sy…
NOMA-based Improper Signaling for Multicell MISO RIS-assisted Broadcast Channels
Mohammad Soleymani, Ignacio Santamaria, Eduard Jorswieck +1
In this paper, we study the performance of reconfigurable intelligent surfaces (RISs) in a multicell broadcast channel (BC) that employs improper Gaussian signaling (IGS) jointly w…