3 citations · 7 across the 15 of their papers we have counts for
16 papers
Toward a Unified Semantic Loss Model for Deep JSCC-based Transmission of EO Imagery
Ti Ti Nguyen, Thanh-Dung Le, Vu Nguyen Ha +6
Modern Earth Observation (EO) systems increasingly rely on high-resolution imagery to support critical applications such as environmental monitoring, disaster response, and land-us…
Demonstrator Testbed for Effective Precoding in MEO Multibeam Satellites
Jorge L. González-Rios, Liz Martínez Marrero, Juan Duncan +6
The use of communication satellites in medium Earth orbit (MEO) is foreseen to provide quasi-global broadband Internet connectivity in the coming networking ecosystems. Multi-user…
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…
A Semantic-Loss Function Modeling Framework With Task-Oriented Machine Learning Perspectives
Ti Ti Nguyen, Thanh-Dung Le, Vu Nguyen Ha +9
The integration of machine learning (ML) has significantly enhanced the capabilities of Earth Observation (EO) systems by enabling the extraction of actionable insights from comple…
On-Air Deep Learning Integrated Semantic Inference Models for Enhanced Earth Observation Satellite Networks
Hong-fu Chou, Vu Nguyen Ha, Prabhu Thiruvasagam +7
Earth Observation (EO) systems are crucial for cartography, disaster surveillance, and resource administration. Nonetheless, they encounter considerable obstacles in the processing…
Cognitive Semantic Augmentation LEO Satellite Networks for Earth Observation
Hong-fu Chou, Vu Nguyen Ha, Prabhu Thiruvasagam +7
Earth observation (EO) systems are essential for mapping, catastrophe monitoring, and resource management, but they have trouble processing and sending large amounts of EO data eff…
Optimal Linear Precoding Under Realistic Satellite Communications Scenarios
Geoffrey Eappen, Jorge Luis Gonzalez, Vibhum Singh +10
In this paper, optimal linear precoding for the multibeam geostationary earth orbit (GEO) satellite with the multi-user (MU) multiple-input-multiple-output (MIMO) downlink scenario…
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…
User-Centric Beam Selection and Precoding Design for Coordinated Multiple-Satellite Systems
Vu Nguyen Ha, Duy H. N. Nguyen, Juan C. -M. Duncan +7
This paper introduces a joint optimization framework for user-centric beam selection and linear precoding (LP) design in a coordinated multiple-satellite (CoMSat) system, employing…
Satellite Swarms for Narrow Beamwidth Applications
Juan A. Vásquez-Peralvo, Juan Carlos Merlano Duncan, Geoffrey Eappen +1
Satellite swarms have recently gained attention in the space industry due to their ability to provide extremely narrow beamwidths at a lower cost than single satellite systems. Thi…
Overview of Use Cases in Single Channel Full Duplex Techniques for Satellite Communication
Victor Monzon Baeza, Steven Kisseleff, Jorge Luis González Rios +7
This paper provides an overview of the diverse range of applications and use cases for Single-Channel Full-Duplex (SCFD) techniques within the field of satellite communication. SCF…
Satellite-based Quantum Network: Security and Challenges over Atmospheric Channel
Hong-fu Chou, Vu Nguyen Ha, Hayder Al-Hraishawi +4
The ultra-secure quantum network leverages quantum cryptography to deliver unsurpassed data transfer security. In principle, the well-known quantum key distribution (QKD) achieves…
Harnessing the Power of Swarm Satellite Networks with Wideband Distributed Beamforming
Juan Carlos Merlano Duncan, Vu Nguyen Ha, Jevgenij Krivochiza +6
The space communications industry is challenged to develop a technology that can deliver broadband services to user terminals equipped with miniature antennas, such as handheld dev…
Energy-Efficient Precoding and Feeder-Link-Beam Matching Design for Bent-Pipe SATCOM Systems
Vu Nguyen Ha, Juan Carlos Merlano Duncan, Eva Lagunas +2
This paper proposes a joint optimization framework for energy-efficient linear precoding and feeder-link-beam matching design in a multi-gateway multi-beam bent-pipe satellite comm…
Joint Linear Precoding and DFT Beamforming Design for Massive MIMO Satellite Communication
Vu Nguyen Ha, Zaid Abdullah, Geoffrey Eappen +9
This paper jointly designs linear precoding (LP) and codebook-based beamforming implemented in a satellite with massive multiple-input multiple-output (mMIMO) antenna technology. T…
End-to-end Precoding Validation over a Live GEO Satellite Forward Link
Jevgenij Krivochiza, Juan Carlos Merlano Duncan, Jorge Querol +5
In this paper we demonstrate end-to-end precoded multi-user multiple-input single-output (MU-MISO) communications over a live GEO satellite link. Precoded communications enable ful…