CV

PhD Student in Computer Science

University of California, Los Angeles

• Advisor: Prfessor Omid Abari.
• Research focus area: AI for Wireless sensing and communication systems.
• Major area: Computer Network Systems
• Minor areas
  • Artificial Intelligence.
  • Human-Computer Interaction.

Bachelor of Science in Electrical Engineering

University of Illinois at Urbana Champaign

• Thesis advisor: Professor Romit Roy Choudhury.
• Thesis project: Indoor Localization with the Assistance of Ultrasonic Beacons

Bachelor of Engineering in Electrical Engineering

Zhejiang University, China

Neural Wireless Radiation Fields Reconstruction and Channel Prediction

Keywords: Neural Radiance Fields, Wireless Channel Prediction, Wireless Coverage

• Designed a Neural Radiance Fields (NeRF)-based framework to predict the wireless channel at any location in the environment using sparse channel measurements
• Integrated wireless propagation properties into the learning framework of NeRF to characterize wireless fields
• Discovered the nature of wireless radiation scenes and enabled the learning of wireless fields in room-scale space
• Results: model achieves 1\% relative squared error using 800x lower channel measurement density than prior art

Millimeter-Wave Backscatter Integrated Sensing and Communication

Keywords: Millimeter-Wave, Backscatter Communication, FMCW Radar, IoT

• Designed and implemented a low-power millimeter wave backscatter system for IoT applications
• Designed a novel modulation scheme that utilizes the frequency scanning antenna to enable two-way communication, and Frequency-Modulated Continuous-Wave (FMCW) radar for localization
• Resulting System Performance: cm-level localization accuracy, and up to 40 Mbps two-way communication with a power consumption of at most 32 mW

Enhancing WiFi Communication and Sensing using Smart Antenna

Keywords: Smart Antenna, WiFi, Frequency Scanning Antenna, 802.11ax

• Designed and Fabricated a Frequency Scanning Antenna (FSA) at WiFi band (5.8GHz)
• Integrated the antenna with the latest WiFi standard (802.11ax) to enhance communication range and datarate
• Enable device localization with submeter-level accuracy using a single transceiver chain

WiFi Physical Layer security loopholes and their implications

Keywords: WiFi, Physical Layer, Security, Power Saving

• Reveal that WiFi Physical layer replies ACK to any packet, even those coming out of the network.
• Reveal that WiFi Physical layer power-saving mechanism can be manipulated by fake beacon packets.
• Investigate the possible security implications of these loopholes, including the disclosure of sensitive information, such as breathing rate; battery drainage of important IoT devices, such as security cameras.

Indoor Localization with the Assistance of Ultrasonic Beacons

Keywords: Ultrasonic Sensing, IMU, Dead Reckoning, Pulse Compression, DTMF

• Based on the hardware non-linearity, designed inaudible acoustic signals that are detectable by mobile phones.
• Designed signal detection scheme based on Pulse Compression and Dual-Tone Multi-Frequency (DTMF) techniques
• Achieved in-time location calibration with the designed beacon signal, which improves the IMU dead reckoning localization accuracy.

Virtual Representative Remote Reality for people with disability

Skills: Python, Arduino, Raspberry Pi, Oculus VR API

• Built a robot that can be remotely controlled by Oculus VR headset based on Arduino and Raspberry Pi.
• Implemented visual system on the robot and remote control interaction based on Oculus VR API.
• The project wins the honorable mention award of class demo (Top 2).

JOKER: JOint KnowledgE & Reference -- A Note-taking App for Researchers [Link]

Skills: Python, Django, Neo4j, NLP, Javascript, jQuery, BootStrap3

• Designed and Implemented Web UI using Javascript based on jQuery and BootStrap3.
• Implemented backend using Django and integrated a graph database, Neo4j.
• Employed NLP algorithms to automatically parse the citation and extract keywords.
• Built and Visualized citation tree and related articles in the database.

A Crowd-sourcing Urban Air Quality Monitoring System on Bicycles [Link]

Skills: Python, Nginx, InfluxDB, Amap API

• Designed and fabricated air quality sensor boards that measure air contaminants concentrations.
• Developed backend with Nginx and use Influx DB to store collected sensor data.
• Visualized the air quality at each area of the city in a Web application using Amap API.

Hand-written digit recognition using Neural Network on FPGA

Skills: Python, FPGA, SystemVerilog

• Implemented a 3-layer Neural Network on FPGA to recognize hand-written digits.
• Implemented the Convolutional Neural Network online inference on a DE2-115 FPGA development board.
• Achieved 83% accuracy in the real-time evaluation

Samsung Research America - Standard and Mobility Innovation Lab

Role: Research Intern

• Project: WiFi-based velocity estimation and tracking for Ambient Intelligence
• Developed an indoor device-free tracking system based on WiFi, and filed a patent for the code and artifacts

Hewlett Packard Labs - Networking and Distributed Systems Lab

Role: Research Intern

• Project: Integrated Sensing and Communication for Private 5G Systems
• Profiled the handover latency between commercial deployed WiFi and Private 5G networks
• Designed and Implemented a 5G-based sensing system to reduce the handover latency

• Amazon AI Fellowship [Link]

• Qualcomm Innovation Fellowship [Link]

• PhD Research Fellowship of University of California, Los Angeles

• Graduation with Highest Honor of University of Illinois at Urbana-Champaign

• Dean's List of University of Illinois at Urbana-Champaign

• Second-class Scholarship of Zhejiang University