4 papers
RIS-assisted Multiuser MISO Transmission and the Impact of Imperfect Channel Estimation
Ainna Yue Moreno-Locubiche, Josep Vidal, Antonio Pascual-Iserte +1
This paper proposes the joint design of reconfigurable intelligent surfaces (RIS) and zero-forcing (ZF) precoding for the downlink (DL) multiuser multiple-input single-output (MU-M…
Contextual Bandits and Reconfigurable Intelligent Surfaces for Predictive LTM Handover Decisions
Ainna Yue Moreno-Locubiche, Josep Vidal, Olga Muñoz-Medina +1
This article addresses the challenge of optimizing handover (HO) in next-generation wireless networks by integrating Reconfigurable Intelligent Surfaces (RIS), predicting received…
Beyond Diagonal RIS-assisted MIMO Transmission: Beamforming Gain and Capacity Optimization
Ainna Yue Moreno-Locubiche, Josep Vidal
Reconfigurable Intelligent Surfaces (RIS) have emerged as a transformative technology in wireless communications, offering unprecedented control over signal propagation. This study…
HMM for short independent sequences: Multiple sequence Baum-Welch application
Margarita Cabrera-Bean, Josep Vidal, Sergio Fernandez-Bertolin +2
In the classical setting, the training of a Hidden Markov Model (HMM) typically relies on a single, sufficiently long observation sequence that can be regarded as representative of…