16 citations · 16 across the 25 of their papers we have counts for
26 papers
Outage Analysis of Backscatter-Based Ambient IoT Device Classes with Energy Buffering
Azzam Al-nahari, Riku Jäntti, Yi Zhou +3
This paper presents an analytical framework for evaluating the outage probability of ambient Internet of Things (A-IoT) device classes communicating directly with a base station. D…
Reinforcing Structured Chain-of-Thought for Video Understanding
Peiyao Wang, Haotian Xu, Noranart Vesdapunt +6
Multi-modal Large Language Models (MLLMs) show promise in video understanding. However, their reasoning often suffers from thinking drift and weak temporal comprehension, even when…
Enormous Fluid Antenna Systems (E-FAS): Channel Estimation
Farshad Rostami Ghadi, Kai-Kit Wong, Masoud Kaveh +4
Enormous fluid antenna systems (E-FAS) have recently emerged as a new wireless architecture in which intelligent metasurfaces act as guided electromagnetic interfaces, enabling sur…
Continuous Fluid Antenna Sampling for Channel Estimation in Cell-Free Massive MIMO
Masoud Kaveh, Farshad Rostami Ghadi, Francisco Hernando-Gallego +3
In this letter, we develop a continuous fluid antenna (FA) framework for uplink channel estimation in cell-free massive multiple-input and multiple-output (CF-mMIMO) systems. By mo…
Enormous Fluid Antenna Systems (E-FAS) for Multiuser MIMO: Channel Modeling and Analysis
Farshad Rostami Ghadi, Kai-Kit Wong, Masoud Kaveh +3
Enormous fluid antenna systems (E-FAS), the system concept that utilizes position reconfigurability in the large scale, have emerged as a new architectural paradigm where intellige…
Fluid Antenna-Enabled Backscatter Communication under Imperfect Channel Observations
Masoud Kaveh, Farshad Rostami Ghadi, Riku Jantti +2
Ambient backscatter communication (AmBC) enables ultra-low-power connectivity by allowing passive backscatter devices (BDs) to convey information through reflection of ambient sign…
AmbShield: Enhancing Physical Layer Security with Ambient Backscatter Devices against Eavesdroppers
Yifan Zhang, Yishan Yang, Riku Jäntti +3
Passive eavesdropping compromises confidentiality in wireless networks, especially in resource-constrained environments where heavyweight cryptography is impractical. Physical laye…
Performance Analysis of Fluid Reconfigurable Intelligent Surface over Covert Communications
Farshad Rostami Ghadi, Masoud Kaveh, Hanjiang Hong +3
This paper investigates the impact of the recently proposed concept of fluid reconfigurable intelligent surfaces (FRIS) on covert communications. Specifically, we consider a commun…
Coverage Region Analysis and Optimization of FIRES-Assisted NOMA and OMA Systems
Farshad Rostami Ghadi, Kai-Kit Wong, Masoud Kaveh +3
Fluid integrated reflecting and emitting surfaces (FIRES) are investigated. In these metasurfaces, each subarea hosts an active element capable of simultaneous transmission and ref…
Ambient Backscatter Communication Assisted by Fluid Reconfigurable Intelligent Surfaces
Masoud Kaveh, Farshad Rostami Ghadi, Riku Jantti +2
This paper investigates the integration of a fluid reconfigurable intelligent surface (FRIS) into ambient backscatter communication (AmBC) systems. Unlike conventional reconfigurab…
Physical Layer Security over Fluid Reconfigurable Intelligent Surface-assisted Communication Systems
Masoud Kaveh, Farshad Rostami Ghadi, Francisco Hernando-Gallego +3
This letter investigates the secrecy performance of wireless communication systems assisted by a fluid reconfigurable intelligent surface (FRIS). Unlike conventional reconfigurable…
A Constant-Time Hardware Architecture for the CSIDH Key-Exchange Protocol
Sina Bagheri, Masoud Kaveh, Francisco Hernando-Gallego +2
The commutative supersingular isogeny Diffie-Hellman (CSIDH) algorithm is a promising post-quantum key exchange protocol, notable for its exceptionally small key sizes, but hindere…
Physical Layer Challenge-Response Authentication between Ambient Backscatter Devices
Yifan Zhang, Yongchao Dang, Masoud Kaveh +3
Ambient backscatter communication (AmBC) has become an integral part of ubiquitous Internet of Things (IoT) applications due to its energy-harvesting capabilities and ultra-low-pow…
FIRES: Fluid Integrated Reflecting and Emitting Surfaces
Farshad Rostami Ghadi, Kai-Kit Wong, Masoud Kaveh +3
This letter introduces the concept of fluid integrated reflecting and emitting surface (FIRES), which constitutes a new paradigm seamlessly integrating the flexibility of fluid-ant…
UAV-Relay Assisted RSMA Fluid Antenna System: Outage Probability Analysis
Farshad Rostami Ghadi, Masoud Kaveh, Francisco Hernando-Gallego +3
This letter studies the impact of fluid antenna system (FAS) technology on the performance of unmanned aerial vehicle (UAV)-assisted multiuser communication networks. Specifically,…
Phase-mismatched STAR-RIS with FAS-assisted RSMA Users
Farshad Rostami Ghadi, Kai-Kit Wong, Masoud Kaveh +4
This paper considers communication between a base station (BS) to two users, each from one side of a simultaneously transmitting-reflecting reconfigurable intelligent surface (STAR…
On Performance of FAS-aided Covert Communications
Farshad Rostami Ghadi, Masoud Kaveh, Riku Jantti +1
This paper investigates the impact of deploying the fluid antenna system (FAS) on the performance of covert communications. In particular, we focus on a scenario where a transmitte…
Voltage Profile-Driven Physical Layer Authentication for RIS-aided Backscattering Tag-to-Tag Networks
Masoud Kaveh, Farshad Rostami Ghadi, Yifan Zhang +2
Backscattering tag-to-tag networks (BTTNs) are emerging passive radio frequency identification (RFID) systems that facilitate direct communication between tags using an external RF…
Physical Layer Security in FAS-aided Wireless Powered NOMA Systems
Farshad Rostami Ghadi, Masoud Kaveh, Kai-Kit Wong +3
The rapid evolution of communication technologies and the emergence of sixth-generation (6G) networks have introduced unprecedented opportunities for ultra-reliable, low-latency, a…
Fluid Antenna Multiple Access with Simultaneous Non-unique Decoding in Strong Interference Channel
Farshad Rostami Ghadi, Kai-Kit Wong, Masoud Kaveh +4
Fluid antenna system (FAS) is gaining attention as an innovative technology for boosting diversity and multiplexing gains. As a key innovation, it presents the possibility to overc…
Physical Layer Mutual Authentication in RIS-Aided Monostatic Backscatter Communications: A Dual-Edged Analysis
Masoud Kaveh, Farshad Rostami Ghadi, Yishan Yang +2
Backscatter communication (BC) emerges as a pivotal technology for ultra-low-power energy harvesting applications, but its practical deployment is often hampered by notable securit…
Secure Backscatter Communications Through RIS: Modeling and Performance
Masoud Kaveh, Farshad Rostami Ghadi, Zhao Li +2
Backscatter communication (BC) has emerged as a pivotal wireless communication paradigm owing to its low-power and cost-effective characteristics. However, BC faces various challen…
RIS-Aided Backscattering Tag-to-Tag Networks: Performance Analysis
Masoud Kaveh, Farshad Rostami Ghadi, Zheng Yan +1
Backscattering tag-to-tag networks (BTTNs) represent a passive radio frequency identification (RFID) system that enables direct communication between tags within an external radio…
Secrecy Performance Analysis of RIS-Aided Fluid Antenna Systems
Farshad Rostami Ghadi, Kai-Kit Wong, Masoud Kaveh +3
This paper examines the impact of emerging fluid antenna systems (FAS) on reconfigurable intelligent surface (RIS)-aided secure communications. Specifically, we consider a classic…