16 citations · 16 across the 25 of their papers we have counts for
7 papers · 1 filter
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…