21 citations · 44 across the 17 of their papers we have counts for
16 papers · 1 filter
What Will the Future of UAV Cellular Communications Be? A Flight from 5G to 6G
Giovanni Geraci, Adrian Garcia-Rodriguez, M. Mahdi Azari +6
What will the future of UAV cellular communications be? In this tutorial article, we address such a compelling yet difficult question by embarking on a journey from 5G to 6G and sh…
UAV-to-UAV Communications in Cellular Networks
M. Mahdi Azari, Giovanni Geraci, Adrian Garcia-Rodriguez +1
We consider a cellular network deployment where UAV-to-UAV (U2U) transmit-receive pairs share the same spectrum with the uplink (UL) of cellular ground users (GUEs). For this setup…
Analysis of UAV Communications in Cell-Free Massive MIMO systems
Carmen D'Andrea, Adrian Garcia-Rodriguez, Giovanni Geraci +2
We study support for unmanned aerial vehicle (UAV) communications through a cell-free massive MIMO architecture, wherein a large number of access points (APs) is deployed in place…
Cellular UAV-to-UAV Communications
M. Mahdi Azari, Giovanni Geraci, Adrian Garcia-Rodriguez +1
Reliable and direct communication between unmanned aerial vehicles (UAVs) could facilitate autonomous flight, collision avoidance, and cooperation in UAV swarms. In this paper, we…
IEEE 802.11be Extremely High Throughput: The Next Generation of Wi-Fi Technology Beyond 802.11ax
David López-Pérez, Adrian Garcia-Rodriguez, Lorenzo Galati-Giordano +2
Wi-Fi technology is continuously innovating to cater to the growing customer demands, driven by the digitalisation of everything, both in the home as well as the enterprise and hot…
The Essential Guide to Realizing 5G-Connected UAVs with Massive MIMO
Adrian Garcia-Rodriguez, Giovanni Geraci, David López-Pérez +3
What will it take for drones -- and the whole associated ecosystem -- to take off? Arguably, infallible command and control (C&C) channels for safe and autonomous flying, and high-…
Understanding UAV Cellular Communications: From Existing Networks to Massive MIMO
Giovanni Geraci, Adrian Garcia-Rodriguez, Lorenzo Galati Giordano +2
The purpose of this article is to bestow the reader with a timely study of UAV cellular communications, bridging the gap between the 3GPP standardization status quo and the more fo…
Supporting UAV Cellular Communications through Massive MIMO
Giovanni Geraci, Adrian Garcia-Rodriguez, Lorenzo Galati Giordano +2
In this article, we provide a much-needed study of UAV cellular communications, focusing on the rates achievable for the UAV downlink command and control (C&C) channel. For this ke…
Uplink Sounding Reference Signal Coordination to Combat Pilot Contamination in 5G Massive MIMO
Lorenzo Galati Giordano, Luca Campanalonga, David Lopez-Perez +4
To guarantee the success of massive multiple-input multiple-output (MIMO), one of the main challenges to solve is the efficient management of pilot contamination. Allocation of ful…
Indoor Massive MIMO Deployments for Uniformly High Wireless Capacity
Giovanni Geraci, Adrian Garcia-Rodriguez, David Lopez-Perez +3
Providing consistently high wireless capacity is becoming increasingly important to support the applications required by future digital enterprises. In this paper, we propose Eigen…
Massive MIMO Unlicensed for High-Performance Indoor Networks
Adrian Garcia-Rodriguez, Giovanni Geraci, David Lopez-Perez +3
We propose massive MIMO unlicensed (mMIMO-U) as a high-capacity solution for future indoor wireless networks operating in the unlicensed spectrum. Building upon massive MIMO (mMIMO…
Massive MIMO Unlicensed: A New Approach to Dynamic Spectrum Access
Adrian Garcia-Rodriguez, Giovanni Geraci, Lorenzo Galati Giordano +3
Nowadays, the demand for wireless mobile services is copious, and will continue increasing in the near future. Mobile cellular operators are therefore looking at the unlicensed spe…
Enhancing Coexistence in the Unlicensed Band with Massive MIMO
Giovanni Geraci, Adrian Garcia-Rodriguez, David López-Pérez +3
We consider cellular base stations (BSs) equipped with a large number of antennas and operating in the unlicensed band. We denote such system as massive MIMO unlicensed (mMIMO-U).…
Operating Massive MIMO in Unlicensed Bands for Enhanced Coexistence and Spatial Reuse
Giovanni Geraci, Adrian Garcia-Rodriguez, David López-Pérez +3
We propose to operate massive multiple-input multiple output (MIMO) cellular base stations (BSs) in unlicensed bands. We denote such system as massive MIMO unlicensed (mMIMO-U). We…
Reduced Switching Connectivity for Large Scale Antenna Selection
Adrian Garcia-Rodriguez, Christos Masouros, Pawel Rulikowski
In this paper, we explore reduced-connectivity radio frequency (RF) switching networks for reducing the analog hardware complexity and switching power losses in antenna selection (…
Hybrid Analog-Digital Precoding Revisited under Realistic RF Modeling
Adrian Garcia-Rodriguez, Vijay Venkateswaran, Pawel Rulikowski +1
In this paper we revisit hybrid analog-digital precoding systems with emphasis on their modelling and radio-frequency (RF) losses, to realistically evaluate their benefits in 5G sy…