Search Results for author: Cristian J. Vaca-Rubio

Found 10 papers, 0 papers with code

Proximal Policy Optimization for Integrated Sensing and Communication in mmWave Systems

no code implementations27 Jun 2023 Cristian J. Vaca-Rubio, Carles Navarro Manchón, Ramoni Adeogun, Petar Popovski

In wireless communication systems, mmWave beam tracking is a critical task that affects both sensing and communications, as it is related to the knowledge of the wireless channel.

EMF Exposure Mitigation in RIS-Assisted Multi-Beam Communications

no code implementations9 May 2023 Herman L. dos Santos, Cristian J. Vaca-Rubio, Radosław Kotaba, Yi Song, Taufik Abrão, Petar Popovski

This paper proposes a method for reducing {third-party} exposure to electromagnetic fields (EMF) by exploiting the capability of a reconfigurable intelligent surfaces' (RIS) to manipulate the electromagnetic environment.

OnRMap: An Online Radio Mapping Approach for Large Intelligent Surfaces

no code implementations6 Feb 2023 Herman L. Santos, Victor Croisfelt, Cristian J. Vaca-Rubio, Taufik Abrao, Petar Popovski

We introduce OnRMap, an online radio mapping (RMap) approach for the sensing and localization of active users (AUs), devices that are transmitting radio signals, and passive elements (PEs), elements that are in the environment and are illuminated by the AUs' radio signals.

Floor Map Reconstruction Through Radio Sensing and Learning By a Large Intelligent Surface

no code implementations21 Jun 2022 Cristian J. Vaca-Rubio, Roberto Pereira, Xavier Mestre, David Gregoratti, Zheng-Hua Tan, Elisabeth de Carvalho, Petar Popovski

Environmental scene reconstruction is of great interest for autonomous robotic applications, since an accurate representation of the environment is necessary to ensure safe interaction with robots.

User Clustering for Rate Splitting using Machine Learning

no code implementations23 May 2022 Roberto Pereira, Anay Ajit Deshpande, Cristian J. Vaca-Rubio, Xavier Mestre, Andrea Zanella, David Gregoratti, Elisabeth de Carvalho, Petar Popovski

Hierarchical Rate Splitting (HRS) schemes proposed in recent years have shown to provide significant improvements in exploiting spatial diversity in wireless networks and provide high throughput for all users while minimising interference among them.

BIG-bench Machine Learning Clustering

User Localization using RF Sensing: A Performance comparison between LIS and mmWave Radars

no code implementations17 May 2022 Cristian J. Vaca-Rubio, Dariush Salami, Petar Popovski, Elisabeth de Carvalho, Zheng-Hua Tan, Stephan Sigg

Since electromagnetic signals are omnipresent, Radio Frequency (RF)-sensing has the potential to become a universal sensing mechanism with applications in localization, smart-home, retail, gesture recognition, intrusion detection, etc.

Gesture Recognition Intrusion Detection

Radio Sensing with Large Intelligent Surface for 6G

no code implementations4 Nov 2021 Cristian J. Vaca-Rubio, Pablo Ramirez-Espinosa, Kimmo Kansanen, Zheng-Hua Tan, Elisabeth de Carvalho

This paper leverages the potential of Large Intelligent Surface (LIS) for radio sensing in 6G wireless networks.

Template Matching

Energy-Efficient Design for RIS-assisted UAVcommunications in beyond-5G Networks

no code implementations24 Sep 2021 Anay Ajit Deshpande, Cristian J. Vaca-Rubio, Salman Mohebi, Dariush Salami, Elisabeth de Carvalho, Petar Popovski, Stephan Sigg, Michele Zorzi, Andrea Zanella

The usage of Reconfigurable Intelligent Surfaces (RIS) in conjunction with Unmanned Ariel Vehicles (UAVs) is being investigated as a way to provide energy-efficient communication to ground users in dense urban areas.

Assessing Wireless Sensing Potential with Large Intelligent Surfaces

no code implementations16 Nov 2020 Cristian J. Vaca-Rubio, Pablo Ramirez-Espinosa, Kimmo Kansanen, Zheng-Hua Tan, Elisabeth de Carvalho, Petar Popovski

By treating an LIS as a radio image of the environment relying on the received signal power, we develop techniques to sense the environment, by leveraging the tools of image processing and machine learning.

BIG-bench Machine Learning Denoising +1

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