25 citations · 35 across the 12 of their papers we have counts for
14 papers
Hybrid Table-Assisted and RL-Based Dynamic Routing for NGSO Satellite Networks
Flor Ortiz, Eva Lagunas
This letter investigates dynamic routing in Next-Generation Satellite Orbit (NGSO) constellations and proposes a hybrid strategy that combines precomputed routing tables with a Dee…
Artificial Intelligence implementation of onboard flexible payload and adaptive beamforming using commercial off-the-shelf devices
Luis Manuel Garcés-Socarrás, Amirhosein Nik, Flor Ortiz +13
Very High Throughput satellites typically provide multibeam coverage, however, a common problem is that there can be a mismatch between the capacity of each beam and the traffic de…
SmartUT: Receive Beamforming for Spectral Coexistence of NGSO Satellite Systems
Almoatssimbillah Saifaldawla, Eva Lagunas, Flor Ortiz +2
In this paper, we investigate downlink co-frequency interference (CFI) mitigation in non-geostationary satellites orbits (NGSOs) co-existing systems. Traditional mitigation techniq…
Optimizing Antenna Activation for Even Power Distribution in Multi-Beam Satellite Systems Using Genetic Algorithm
Juan Andrés Vasquez-Peralvo, Aral Ertug Zorkun, Jorge Querol +5
Recent advancements in onboard satellite communication have significantly enhanced the ability to dynamically modify the radiation pattern of a Direct Radiating Array, which is ess…
Optimizing Satellite Network Infrastructure: A Joint Approach to Gateway Placement and Routing
Yuma Abe, Flor Ortiz, Eva Lagunas +3
Satellite constellation systems are becoming more attractive to provide communication services worldwide, especially in areas without network connectivity. While optimizing satelli…
Artificial Intelligence Satellite Telecommunication Testbed using Commercial Off-The-Shelf Chipsets
Luis M. Garcés-Socarrás, Amirhossein Nik, Flor Ortiz +13
The Artificial Intelligence Satellite Telecommunications Testbed (AISTT), part of the ESA project SPAICE, is focused on the transformation of the satellite payload by using artific…
Emerging NGSO Constellations: Spectral Coexistence with GSO Satellite Communication Systems
Flor Ortiz, Eva Lagunas, Almoatssimbillah Saifaldawla +3
Global communications have undergone a paradigm shift with the rapid expansion of low-earth orbit (LEO) satellite constellations, offering a new space era of reduced latency and ub…
Performance Evaluation of Neuromorphic Hardware for Onboard Satellite Communication Applications
Eva Lagunas, Flor Ortiz, Geoffrey Eappen +7
Spiking neural networks (SNNs) implemented on neuromorphic processors (NPs) can enhance the energy efficiency of deployments of artificial intelligence (AI) for specific workloads.…
Genetic Algorithm-based Beamforming in Subarray Architectures for GEO Satellites
Juan Andrés Vásquez-Peralvo, Jorge Querol, Eva Lagunas +5
The incorporation of subarrays in Direct Radiating Arrays for satellite missions is fundamental in reducing the number of Radio Frequency chains, which correspondingly diminishes c…
Supervised Learning Based Real-Time Adaptive Beamforming On-board Multibeam Satellites
Flor Ortiz, Juan A. Vasquez-Peralvo, Jorge Querol +6
Satellite communications (SatCom) are crucial for global connectivity, especially in the era of emerging technologies like 6G and narrowing the digital divide. Traditional SatCom s…
Gateway Station Geographical Planning for Emerging Non-Geostationary Satellites Constellations
Victor Monzon Baeza, Flor Ortiz, Eva Lagunas +2
Among the recent advances and innovations in satellite communications, Non-Geostationary Orbit (NGSO) satellite constellations are gaining popularity as a viable option for providi…
Harnessing Supervised Learning for Adaptive Beamforming in Multibeam Satellite Systems
Flor Ortiz, Juan A. Vasquez-Peralvo, Jorge Querol +5
In today's ever-connected world, the demand for fast and widespread connectivity is insatiable, making multibeam satellite systems an indispensable pillar of modern telecommunicati…
Energy-Efficient On-Board Radio Resource Management for Satellite Communications via Neuromorphic Computing
Flor Ortiz, Nicolas Skatchkovsky, Eva Lagunas +6
The latest satellite communication (SatCom) missions are characterized by a fully reconfigurable on-board software-defined payload, capable of adapting radio resources to the tempo…
Artificial Intelligence for Satellite Communication and Non-Terrestrial Networks: A Survey
G. Fontanesi, F. Ortíz, E. Lagunas +18
This paper surveys the application and development of Artificial Intelligence (AI) in Satellite Communication (SatCom) and Non-Terrestrial Networks (NTN). We first present a compre…