5 papers
A Subcarrier-Aware Approach for Robust Respiratory Monitoring with Commodity Wi-Fi
Pei Tang, Yunpeng Ge, Ivan Wang-Hei Ho
Wi-Fi sensing has emerged as a promising modality for contact-free respiratory monitoring in home healthcare due to its ubiquity. However, conventional approaches typically treat C…
FedAPA: Federated Learning with Adaptive Prototype Aggregation Toward Heterogeneous Wi-Fi CSI-based Crowd Counting
Jingtao Guo, Yuyi Mao, Ivan Wang-Hei Ho
Wi-Fi channel state information (CSI)-based sensing provides a non-invasive, device-free approach for tasks such as human activity recognition and crowd counting, but large-scale d…
BiCSI: A Binary Encoding and Fingerprint-Based Matching Algorithm for Wi-Fi Indoor Positioning
Pei Tang, Jingtao Guo, Ivan Wang-Hei Ho
Traditional global positioning systems often underperform indoors, whereas Wi-Fi has become an effective medium for various radio sensing services. Specifically, utilizing channel…
Wall-Proximity Matters: Understanding the Effect of Device Placement with Respect to the Wall for Indoor Wi-Fi Sensing
He Wang, Yunpeng Ge, Ivan Wang-Hei Ho
Wi-Fi sensing has been extensively explored for various applications, including vital sign monitoring, human activity recognition, indoor localization, and tracking. However, pract…
RSSI-Assisted CSI-Based Passenger Counting with Multiple Wi-Fi Receivers
Jingtao Guo, Wenhao Zhuang, Yuyi Mao +1
Passenger counting is crucial for public transport vehicle scheduling and traffic capacity evaluation. However, most existing methods are either costly or with low counting accurac…