A Frequency-Reconfigurable Microstrip Antenna with Constant Dipole-Like Radiation Patterns Using Single Bias, Triple Varactor Tuning with Reduced Complexity
This work proposes a novel frequency-reconfigurable circular patch antenna incorporated with a rectangular slot and a narrow slot capable of producing constant […]
A Robust GAN-Generated Face Detection Method Based on Dual-Color Spaces and an Improved Xception
In recent years generative adversarial networks (GANs) have been widely used to generate realistic fake face images which can easily deceive human […]
Wireless-Powered Full-Duplex UAV Relay Networks Over FTR Channels
A thorough understanding of fundamental limits of wireless-powered unmanned aerial vehicle (UAV) relay networks in millimeter waves is still missing. We narrow […]
Deep Contextual Bandits for Fast Neighbor-Aided Initial Access in mmWave Cell-Free Networks
Access points (APs) in millimeter-wave (mmWave) user-centric (UC) networks will have sleep mode functionality. Initial access (IA) is a challenging problem in […]
AoI Minimization in Status Update Control With Energy Harvesting Sensors
Information freshness is crucial for time-critical IoT applications, e.g., monitoring and control. We consider an IoT status update system with users, energy […]
Design and Validation of the Phase-Compensated Long-Range Sub-THz VNA-Based Channel Sounder
This letter presents the first vector network analyzer based subterahertz (sub-THz) phase-compensated channel sounder at 220–330 GHz using radio-over-fiber techniques that could […]
StressNAS
Smartwatches have rapidly evolved towards capabilities to accurately capture physiological signals. As an appealing application, stress detection attracts many studies due to […]
Challenges on Collecting Smartphone Data in Cold Environments
Smartphones can be considered the cheapest and well-penetrated devices for collecting everyday human behaviour data. However, smartphones, as any battery-dependant electronic devices, […]
WellComp 2021
With the advancements in ubiquitous computing, ubicomp technology has deeply spread into our daily lives, including office work, home and house-keeping, health […]
Meditation Detection Using Sensors from Wearable Devices
Meditation is a practice that aims at self-inducing a state of calmed rest. In this work, we analyze physiological signals collected with […]