8 papers
Holographic Beamforming for Range-Doppler Sidelobe Suppression in OFDM-ISAC
Amirhossein Azarbahram, Onel L. A. López
This paper investigates range--Doppler (RD) sidelobe suppression in an integrated sensing and communications system with a reconfigurable holographic surface (RHS). We jointly desi…
Beam Selection for Delay-Doppler Visibility in Multi-Target MIMO-OFDM Sensing
Amirhossein Azarbahram, Onel L. A. López
This paper studies leakage-aware beam selection for multi-target multiple-input multiple-output (MIMO)-orthogonal frequency-division multiplexing (OFDM) sensing. We focus on ensuri…
Radio Stripe-Based Distributed ISAC System with Dynamic Sensing-Communication Reconfiguration
Osmel Martínez Rosabal, Onel L. Alcaraz López
Integrated sensing and communications (ISAC) has emerged as an intrinsic service of upcoming 6G wireless systems, enabling the reuse of communication signals for environmental sens…
Discrete Diffusion for Codebook-Based Beam Candidate Generation
Amirhossein Azarbahram, Onel L. A. López
Millimeter-wave (mmWave) communication enables high data rates through large bandwidths and highly directional beamforming, but its sensitivity to blockage and mobility makes relia…
Sequential Monte Carlo for Network Resilience Assessment and Control
Onel Luis Alcaraz López
Resilience is emerging as a key requirement for next-generation wireless communication systems, requiring the ability to assess and control rare, path-dependent failure events aris…
Active IoT User Detection in Near-Field with Location Information
Gabriel Martins de Jesus, Richard Demo Souza, Onel Luis Alcaraz López
In this paper, we address active users detection (AUD) in near-field Internet of Things (IoT) networks by exploring prior knowledge of users' locations. We consider a scenario wher…
On the Value of Base Station Motion Knowledge for Goal-Oriented Remote Monitoring with Energy-Harvesting Sensors
Sehani Siriwardana, Jean Michel de Souza Sant'Ana, Richard Demo Souza +2
This paper investigates goal-oriented remote monitoring of an unobservable Markov source using energy-harvesting sensors that communicate with a mobile receiver, such as a Low Eart…
Echo-Conditioned Denoising Diffusion Probabilistic Models for Multi-Target Tracking in RF Sensing
Amirhossein Azarbahram, Onel L. A. López
In this paper, we consider a dynamic radio frequency sensing system aiming to spatially track multiple targets over time. We develop a conditional denoising diffusion probabilistic…