33 citations · 33 across the 2 of their papers we have counts for
5 papers
Beamfocusing Capabilities of a Uniform Linear Array in the Holographic Regime
Xavier Mestre, Adrian Agustin
The use of multiantenna technologies in the near field offers the possibility of focusing the energy in spatial regions rather than just in angle. The objective of this paper is to…
Deterministic Equivalent of the Log-Euclidean Distance between Sample Covariance Matrices
Xavier Mestre, Roberto Pereira
Log-Euclidean distances are commonly used to quantify the similarity between positive definite matrices using geometric considerations. This paper analyzes the behavior of this dis…
Statistical Framework for Clustering MU-MIMO Wireless via Second Order Statistics
Roberto Pereira, Xavier Mestre
This work explores the clustering of wireless users by examining the distances between their channel covariance matrices, which reside on the Riemannian manifold of positive defini…
Single-Tap Precoders and Decoders for Multi-User MIMO FBMC-OQAM under Strong Channel Frequency Selectivity
François Rottenberg, Xavier Mestre, François Horlin +1
The design of linear precoders or decoders for multiuser (MU) multiple-input multiple-output (MIMO) filterbank multicarrier (FBMC) modulations in the case of strong channel frequen…
White Paper: Radio y Redes Cognitivas
Carles Anton Haro, Luis Castedo Ribas, Javier del Ser Lorente +11
Traditionally, two different policies to access the radio spectrum have coexisted: licensed regulation, whereby the rights to use specific spectral bands are granted in exclusivity…