6 citations · 11 across the 12 of their papers we have counts for
13 papers
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…
Same Signal, Different Story: Demystifying Receiver Effects in Wi-Fi Channel State Information
Fabian Portner, Francesco Gringoli, Matthias Hollick +1
Wi-Fi sensing has emerged as a versatile tool for tasks such as localization, gesture recognition, and vital-sign monitoring, enabling applications from smart environments to perso…
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…
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…
Faulty RIS-aided Integrated Sensing and Communication: Modeling and Optimization
Lu Wang, Gui Zhou, Changheng Li +4
This work investigates a practical reconfigurable intelligent surface (RIS)-aided integrated sensing and communication (ISAC) system, where a subset of RIS elements fail to functio…
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…
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…
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…