Search Results - "Femenias, Guillem"

Cell-Free Millimeter-Wave Massive MIMO Systems With Limited Fronthaul Capacity by Femenias, Guillem, Riera-Palou, Felip

“…Network densification, massive multiple-input multiple-output (MIMO), and millimeter-wave (mmWave) bands have recently emerged as some of the physical layer…”
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Fronthaul-Constrained Cell-Free Massive MIMO With Low Resolution ADCs by Femenias, Guillem, Riera-Palou, Felip

“…In cell-free massive MIMO networks, a large number of distributed access points (APs) provide service to a much smaller number of mobile stations (MSs) over…”
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Access Point Switch ON/OFF Strategies for Green Cell-Free Massive MIMO Networking by Femenias, Guillem, Lassoued, Narjes, Riera-Palou, Felip

“…The combination of user-centric network densification and distributed massive multiple-input multiple-output (MIMO) operation has recently brought along a new…”
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Energy-Efficient Access-Point Sleep-Mode Techniques for Cell-Free mmWave Massive MIMO Networks with Non-uniform Spatial Traffic Density by Garcia-Morales, Jan, Femenias, Guillem, Riera-Palou, Felip

“…Cell-free massive multiple-input multiple-output (MIMO) is a novel beyond 5G (B5G) and 6G paradigm that, through the use of a common central processing unit…”
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Unveiling New Frontiers of Downlink Training in User-Centric Cell-Free Massive MIMO by Femenias, Guillem, Riera-Palou, Felip

“…Cell-free massive MIMO (CF-mMIMO) emerges as a pivotal technology in the landscape of beyond-5G and 6G wireless networks, addressing the ever-increasing demand…”
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Cell-Free Massive MIMO-OFDM Over Spatially Correlated Doubly Selective Channels by Femenias, Guillem, Riera-Palou, Felip

“…This paper investigates the impact of doubly selective fading channels on the design and performance analysis of cell-free massive multiple-input…”
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Channel Hardening in Cell-Free and User-Centric Massive MIMO Networks with Spatially Correlated Ricean Fading by Polegre, Alberto Alvarez, Riera-Palou, Felip, Femenias, Guillem, Armada, Ana Garcia

“…The irruption of the cell-free (CF) massive multiple-input multiple-output (MIMO) network topology has meant taking one step further the concept of massive…”
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Multi-Layer Downlink Precoding for Cloud-RAN Systems Using Full-Dimensional Massive MIMO by Femenias, Guillem, Riera-Palou, Felip

“…Full-dimensional (FD) massive multiple-input multiple-output (MIMO) has recently emerged as one of the physical layer enablers of 5G systems. Grounded on prior…”
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Scalable Cell-Free Massive MIMO Networks With LEO Satellite Support by Riera-Palou, Felip, Femenias, Guillem, Caus, Marius, Shaat, Musbah, Perez-Neira, Ana I.

“…This paper presents an integrated network architecture combining a cell-free massive multiple-input multiple-output (CF-M-MIMO) terrestrial layout with a low…”
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Downlink Scheduling and Resource Allocation for 5G MIMO-Multicarrier: OFDM vs FBMC/OQAM by Femenias, Guillem, Riera-Palou, Felip, Mestre, Xavier, Olmos, Juan J.

“…The definition of the next generation of wireless communications, so-called 5G networks, is currently underway. Among many technical decisions, one that is…”
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Higher Order Sectorization in FFR-Aided OFDMA Cellular Networks: Spectral- and Energy-Efficiency by Garcia-Morales, Jan, Femenias, Guillem, Riera-Palou, Felip

“…It is well known that per macro-site spectral efficiency (SE) can be increased through higher order sectorization (HOS) by radially partitioning the coverage…”
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Subgroup-Centric Multicast Cell-Free Massive MIMO by De La Fuente, Alejandro, Femenias, Guillem, Riera-Palou, Felip, Interdonato, Giovanni

“…Cell-free massive multiple-input multiple-output (CF-mMIMO) is an emerging technology for beyond fifth-generation (5G) systems aimed at enhancing the energy…”
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Dynamic Spectrum Sharing in a Blockchain Enabled Network with Multiple Cell-Free Massive MIMO Virtual Operators by Femenias, Guillem, Hinarejos, M. Francisca, Riera-Palou, Felip, Ferrer-Gomila, Josep-Lluis, Jaume-Barcelo, Amador

“…This paper introduces a novel dynamic spectrum sharing (DSS) scheme designed for cell-free massive MIMO (CF-mMIMO) networks. The motivation behind this work…”
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On the Design of OFDMA-Based FFR-Aided Irregular Cellular Networks With Shadowing by Garcia-Morales, Jan, Femenias, Guillem, Riera-Palou, Felip

“…Owing to its high capabilities in terms of spectral efficiency and flexibility, orthogonal frequency division multiple access (OFDMA) has played a crucial role…”
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Analysis and Optimization of FFR-Aided OFDMA-Based Heterogeneous Cellular Networks by Garcia-Morales, Jan, Femenias, Guillem, Riera-Palou, Felip

“…Two-tier networks combining an operator-managed infrastructure of macrocell base stations combined with a user-deployed network of femtocells have recently…”
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Multi-Layer FFR-Aided OFDMA-Based Networks Using Channel-Aware Schedulers by Garcia-Morales, Jan, Femenias, Guillem, Riera-Palou, Felip, Thompson, John S.

“…In orthogonal frequency-division multiple access (OFDMA) networks, the use of universal frequency reuse improves overall cell capacity at the cost of very high…”
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Multi-Objective Optimization of Coordinated Multipoint-Aided MIMO-OFDMA Systems With Frequency Reuse by Perez, Javier Atanasio Pastor, Riera-Palou, Felip, Femenias, Guillem

“…Recent years have seen an upsurge in novel techniques to satisfy the ambitious requirements of modern wireless cellular systems in terms of area spectral…”
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Wideband Cell-Free mmWave Massive MIMO-OFDM: Beam Squint-Aware Channel Covariance-Based Hybrid Beamforming by Femenias, Guillem, Riera-Palou, Felip

“…This paper considers the design of beam squint-aware channel covariance-based hybrid beamformers for wideband cell-free millimeter-wave (mmWave) massive…”
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Group-Orthogonal Code-Division Multiplex: A Physical-Layer Enhancement for IEEE 802.11n Networks by Riera-Palou, Felip, Femenias, Guillem

“…The new standard for wireless local area networks (WLANs), named IEEE 802.11n, has been recently released. This new norm builds upon and remains compatible…”
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K-Repetition for Grant-Free Random Access in Cell-Free Massive MIMO Networks by Femenias, Guillem, Riera-Palou, Felip

“…In this article, we propose a probabilistic <inline-formula><tex-math notation="LaTeX">K</tex-math></inline-formula>-repetition scheme for grant-free random…”
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