6 citations · 10 across the 19 of their papers we have counts for
22 papers
CKM-Based Predictive Beamforming for Energy-Efficient Mobile Tracking in ISCAP System
Maryam Asadi-Ahmadabadi, S. Mohammad Razavizadeh, Vahid Jamali
This paper proposes a channel-knowledge-map (CKM)-based predictive beamforming framework for integrated sensing, communication, and powering (ISCAP) of a mobile energy-constrained…
Resource Allocation for Cloud Radar Networks with Communication Constraints
Christian Eckrich, Abdelhak M. Zoubir, Vahid Jamali
Distributed radar sensing exploits spatial diversity to resolve occlusions and improve estimation accuracy. Realizing these gains, however, relies on the transmission of high-dimen…
Uncertainty-Aware Fusion for Resilient Distributed Radar Sensing
Christian Eckrich, Maik Pfefferkorn, Rolf Findeisen +2
Distributed radar sensing enables safe and resilient operation in mobile robotic and vehicular systems by combining multiple local views of the scene. In this paper, we consider a…
Temperature-aware Optimization of Liquid Crystal Reconfigurable Intelligent Surfaces: Physics-based Modeling and Robust Design
Mohamadreza Delbari, Bowu Wang, Arash Asadi +1
While LC technology facilitates the realization of energy-efficient and scalable RISs, their phase shift response is inherently temperature-dependent. Neglecting this thermal depen…
Fault-Aware Design for Reconfigurable Holographic Surface-Aided ISAC Systems
Lu Wang, Mohamadreza Delbari, Gui Zhou +3
Reconfigurable holographic surface (RHS)-aided integrated sensing and communication (ISAC) systems hold great promise for achieving both sensing and communication with low hardware…
Wideband Illumination with Liquid Crystal Reconfigurable Intelligent Surfaces: Modeling, Design, and Experimental Tests
Mohamadreza Delbari, Robin Neuder, Alejandro Jiménez-Sáez +2
Liquid crystal (LC) is a promising hardware solution for implementing large RISs, as it is cost-effective, energy efficient, scalable, and capable of providing continuous phase shi…
Flexible RISs: Learning-based Array Manifold Estimation and Phase-shift Optimization
Mohamadreza Delbari, Ehsan Mohammadi, Mostafa Darabi +3
Reconfigurable intelligent surfaces (RISs) are envisioned as a key enabler for next-generation wireless networks, offering programmable control over propagation environments. While…
Transparent and Resilient Activity Recognition via Attention-Based Distributed Radar Sensing
Mina Shahbazifar, Zolfa Zeinalpour-Yazdi, Matthias Hollick +2
Distributed radar sensors enable robust human activity recognition. However, scaling the number of coordinated nodes introduces challenges in feature extraction from large datasets…
Learning-Based Phase Shift Optimization of Liquid Crystal RIS in Dynamic mmWave Networks
Le Hao, Robin Neuder, Mohamadreza Delbari +4
To enhance coverage and signal quality in millimeter-wave (mmWave) frequencies, reconfigurable intelligent surfaces (RISs) have emerged as a game-changing solution to manipulate th…
CKM-Assisted Physical-Layer Security for Resilience Against Unknown Eavesdropping Location
Ladan Khaloopour, Matthias Hollick, Vahid Jamali
Channel Knowledge Map (CKM) is an emerging data-driven toolbox that captures our awareness of the wireless channel and enables efficient communication and resource allocation beyon…
Liquid Crystal-Based RIS Loss-Trade-Off Analysis
Bowu Wang, Mohamadreza Delbari, Robin Neuder +2
Liquid crystal (LC) technology has emerged as a promising solution for large reconfigurable intelligent surfaces (RISs) at millimeter wave (mmWave) bands, offering advantages such…
Near-field Liquid Crystal RIS Phase-Shift Design for Secure Wideband Illumination
Mohamadreza Delbari, Qikai Zhou, Robin Neuder +2
Liquid crystal (LC) technology provides a low-power and scalable approach to implement a reconfigurable intelligent surface (RIS). However, the LC-based RIS's phase-shift response…
Robust and Resilient Networks with Integrated Sensing, Communication and Computation
Ming-Chun Lee, Christian Eckrich, Vahid Jamali +3
Emerging applications such as networked robotics, intelligent transportation, smart factories, and virtual and augmented reality demand integrated perception and connectivity enabl…
Temperature-Resilient LC-RIS Phase-Shift Design for Multi-user Downlink Communications
Nairy Moghadas Gholian, Mohamadreza Delbari, Vahid Jamali +1
The reflecting antenna elements in most reconfigurable intelligent surfaces (RISs) use semiconductor-based (e.g., positive-intrinsic-negative (PIN) diodes and varactors) phase shif…
Fast Reconfiguration of Liquid Crystal-RISs: Modeling and Algorithm Design
Mohamadreza Delbari, Robin Neuder, Alejandro Jiménez-Sáez +2
LC technology is a promising hardware solution for realizing extremely large RISs due to its advantages in cost-effectiveness, scalability, energy efficiency, and continuous phase…
Integrated Sensing, Communication, and Powering (ISCAP) for IoT: A Joint Beamforming Design
Maryam Asadi Ahmadabadi, S. Mohammad Razavizadeh, Vahid Jamali
This paper studies Integrated Sensing, Communication, and Powering (ISCAP) as a novel framework designed to enhance Internet of Things (IoT) applications within sixth-generation wi…
Temperature-Aware Phase-shift Design of LC-RIS for Secure Communication
Mohamadreza Delbari, Bowu Wang, Nairy Moghadas Gholian +2
Liquid crystal (LC) technology enables low-power and cost-effective solutions for implementing the reconfigurable intelligent surface (RIS). However, the phase-shift response of LC…
Fast-Reconfiguring Liquid-Crystal RIS for Pervasive Wireless Networks
Luis F. Abanto-Leon, Robin Neuder, Waqar Ahmed +3
Reconfigurable intelligent surfaces (RISs) have emerged as a key technology for dynamically reshaping wireless propagation, enhancing coverage and mitigating blockages to enable mo…
Fronthaul-Constrained Distributed Radar Sensing
Christian Eckrich, Abdelhak M. Zoubir, Vahid Jamali
In this paper, we study a network of distributed radar sensors that collaboratively perform sensing tasks by transmitting their quantized radar signals over capacity-constrained fr…
Resilience-by-Design in 6G Networks: Literature Review and Novel Enabling Concepts
Ladan Khaloopour, Yanpeng Su, Florian Raskob +12
The sixth generation (6G) mobile communication networks are expected to intelligently integrate into various aspects of modern digital society, including smart cities, homes, healt…
Fast Transition-Aware Reconfiguration of Liquid Crystal-based RISs
Mohamadreza Delbari, Robin Neuder, Alejandro Jiménez-Sáez +2
Liquid crystal (LC) technology offers a cost-effective, scalable, energy-efficient, and continuous phase tunable realization of extremely large reconfigurable intelligent surfaces…
BeamSec: A Practical mmWave Physical Layer Security Scheme Against Strong Adversaries
Afifa Ishtiaq, Arash Asadi, Ladan Khaloopour +3
The high directionality of millimeter-wave (mmWave) communication systems has proven effective in reducing the attack surface against eavesdropping, thus improving the physical lay…