A model based decimeter-scale device-free localization system using COTS wi-fi devices. - Ruiyang Gao; Hao Wang 035; Dan Wu 007; Kai Niu 003; Enze Yi; Daqing Zhang 001 (UbiComp/ISWC Adjunct, 2017)

AR-Alarm: An Adaptive and Robust Intrusion Detection System Leveraging CSI from Commodity Wi-Fi. - Shengjie Li 001; Xiang Li 049; Kai Niu 003; Hao Wang 035; Yue Zhang; Daqing Zhang 001 (ICOST, 2017)

MFDL: A Multicarrier Fresnel Penetration Model based Device-Free Localization System leveraging Commodity Wi-Fi Cards. - Hao Wang 035; Daqing Zhang 001; Kai Niu 003; Qin Lv; Yuanhuai Liu; Dan Wu 007; Ruiyang Gao; Bing Xie (CoRR, 2017)

Boosting fine-grained activity sensing by embracing wireless multipath effects. - Kai Niu 003; Fusang Zhang; Jie Xiong 001; Xiang Li 049; Enze Yi; Daqing Zhang 001 (CoNEXT, 2018)

A Fresnel Diffraction Model Based Human Respiration Detection System Using COTS Wi-Fi Devices. - Kai Niu 003; Fusang Zhang; Zhaoxin Chang 001; Daqing Zhang 001 (UbiComp/ISWC Adjunct, 2018)

From Fresnel Diffraction Model to Fine-grained Human Respiration Sensing with Commodity Wi-Fi Devices. - Fusang Zhang; Daqing Zhang 001; Jie Xiong 001; Hao Wang 035; Kai Niu 003; Beihong Jin; Yuxiang Wang (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2018)

A contactless gesture interaction system using LTE (4G) signals. - Weiyan Chen; Kai Niu 003; Dan Wu 007; Deng Zhao; Leye Wang; Daqing Zhang 001 (UbiComp/ISWC Adjunct, 2019)

A contactless Morse code text input system using COTS wifi devices. - Kai Niu 003; Fusang Zhang; Yuhang Jiang; Zhaoxin Chang 001; Leye Wang; Daqing Zhang 001 (UbiComp/ISWC Adjunct, 2019)

Towards a Diffraction-based Sensing Approach on Human Activity Recognition. - Fusang Zhang; Kai Niu 003; Jie Xiong 001; Beihong Jin; Tao Gu 001; Yuhang Jiang; Daqing Zhang 001 (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2019)

WiMorse: A Contactless Morse Code Text Input System Using Ambient WiFi Signals. - Kai Niu 003; Fusang Zhang; Yuhang Jiang; Jie Xiong 001; Qin Lv; Youwei Zeng; Daqing Zhang 001 (IEEE Internet Things J., 2019)

Robust Dynamic Hand Gesture Interaction using LTE Terminals. - Weiyan Chen; Kai Niu 003; Deng Zhao; Rong Zheng 001; Dan Wu 007; Wei Wang 002; Leye Wang; Daqing Zhang 001 (IPSN, 2020)

AcousticThermo: Temperature Monitoring Using Acoustic Pulse Signal. - Fusang Zhang; Kai Niu 003; Xiaolai Fu; Beihong Jin (MSN, 2020)

Exploring LoRa for Long-range Through-wall Sensing. - Fusang Zhang; Zhaoxin Chang 001; Kai Niu 003; Jie Xiong 001; Beihong Jin; Qin Lv; Daqing Zhang 001 (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2020)

Unlocking the Beamforming Potential of LoRa for Long-range Multi-target Respiration Sensing. - Fusang Zhang; Zhaoxin Chang 001; Jie Xiong 001; Rong Zheng 001; Junqi Ma 002; Kai Niu 003; Beihong Jin; Daqing Zhang 001 (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2021)

WiFi-Sleep: Sleep Stage Monitoring Using Commodity Wi-Fi Devices. - Bohan Yu; Yuxiang Wang; Kai Niu 003; Youwei Zeng; Tao Gu 001; Leye Wang; Cuntai Guan; Daqing Zhang 001 (IEEE Internet Things J., 2021)

Practical Issues and Challenges in CSI-based Integrated Sensing and Communication. - Daqing Zhang 001; Dan Wu 007; Kai Niu 003; Xuanzhi Wang; Fusang Zhang; Jian Yao 006; Dajie Jiang; Fei Qin (ICC Workshops, 2022)

In-Air Handwriting Recognition Using Acoustic Impulse Signals. - Kai Niu 003; Fusang Zhang; Xiaolai Fu; Beihong Jin (ICOST, 2022)

Placement Matters: Understanding the Effects of Device Placement for WiFi Sensing. - Xuanzhi Wang; Kai Niu 003; Jie Xiong 001; Bochong Qian; Zhiyun Yao; Tairong Lou; Daqing Zhang 001 (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2022)

Rethinking Doppler Effect for Accurate Velocity Estimation With Commodity WiFi Devices. - Kai Niu 003; Xuanzhi Wang; Fusang Zhang; Rong Zheng 001; Zhiyun Yao; Daqing Zhang 001 (IEEE J. Sel. Areas Commun., 2022)

Understanding WiFi Signal Frequency Features for Position-Independent Gesture Sensing. - Kai Niu 003; Fusang Zhang; Xuanzhi Wang; Qin Lv; Haitong Luo; Daqing Zhang 001 (IEEE Trans. Mob. Comput., 2022)

How Target's Location and Orientation Affect Velocity Extraction Accuracy in WiFi Sensing Systems. - Kai Niu 003; Xuanzhi Wang; Zhiyun Yao; Fusang Zhang; Si Cheng; Yalan Jiang; Daqing Zhang 001 (ACM TUR-C, 2023)

WiCross: I Can Know When You Cross Using COTS WiFi Devices. - Weiyan Shi; Xuanzhi Wang; Kai Niu 003; Leye Wang; Daqing Zhang 001 (UbiComp/ISWC Adjunct, 2023)

WiMeasure: Millimeter-level Object Size Measurement with Commodity WiFi Devices. - Xuanzhi Wang; Kai Niu 003; Anlan Yu; Jie Xiong 001; Zhiyun Yao; Junzhe Wang; Wenwei Li; Daqing Zhang 001 (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2023)

Enabling WiFi Sensing on New-generation WiFi Cards. - Enze Yi; Fusang Zhang; Jie Xiong 001; Kai Niu 003; Zhiyun Yao; Daqing Zhang 001 (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2023)

WiProfile: Unlocking Diffraction Effects for Sub-Centimeter Target Profiling Using Commodity WiFi Devices. - Zhiyun Yao; Xuanzhi Wang; Kai Niu 003; Rong Zheng 001; Junzhe Wang; Daqing Zhang 001 (MobiCom, 2024)

BFMSense: WiFi Sensing Using Beamforming Feedback Matrix. - Enze Yi; Dan Wu 007; Jie Xiong 001; Fusang Zhang; Kai Niu 003; Wenwei Li; Daqing Zhang 001 (NSDI, 2024)

Wi2DMeasure: WiFi-based 2D Object Size Measurement. - Xuanzhi Wang; Junzhe Wang; Kai Niu 003; Jie Xiong 001; Fusang Zhang; Enze Yi; Anlan Yu; Zhiyun Yao; Daqing Zhang 001 (SenSys, 2024)

Embracing Distributed Acoustic Sensing in Car Cabin for Children Presence Detection. - Yuqi Su; Fusang Zhang; Kai Niu 003; Tianben Wang; Beihong Jin; Zhi Wang 016; Yalan Jiang; Daqing Zhang 001; Lili Qiu; Jie Xiong 001 (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2024)

Understanding the Diffraction Model in Static Multipath-Rich Environments for WiFi Sensing System Design. - Xuanzhi Wang; Anlan Yu; Kai Niu 003; Weiyan Shi; Junzhe Wang; Zhiyun Yao; Rahul C. Shah; Hong Lu 006; Daqing Zhang 001 (IEEE Trans. Mob. Comput., 2024)

Multi-Person Respiration Monitoring Leveraging Commodity Wi-Fi Devices. - Enze Yi; Kai Niu 003; Fusang Zhang; Ruiyang Gao; Jun Luo; Daqing Zhang 001 (J. Comput. Sci. Technol., 2025)

WiCross: Indoor Human Zone-Crossing Detection Using Commodity WiFi Devices. - Weiyan Shi; Xuanzhi Wang; Kai Niu 003; Leye Wang; Daqing Zhang 001 (CoRR, 2025)