Research
I build practical wireless and networking systems for LEO satellites, validated on real in-orbit satellites and hardware testbeds. My work spans three connected threads:
Joint Communication & Sensing for Satellites
Billion-dollar imaging satellites point powerful radar beams at Earth yet still rely on dedicated, expensive communication links. I design systems that reuse a satellite’s existing imaging waveform to carry data — opening a bidirectional satellite-ground link with no extra spectrum, no satellite hardware changes, and no loss of imaging quality.
Related: CommSAR (SIGCOMM 2026)
Reliable Satellite-IoT Access
Low-power ground devices talking to LoRa satellites face enormous distances, ultra-low SNR, and extreme Doppler. I build signal-processing techniques that turn a system’s own repeated broadcasts into a virtual antenna array, coherently combining them to recover packets that would otherwise be lost.
Related: B2LoRa (MobiCom 2025)
On-Orbit Computing & Space Situational Awareness
Downlinking imagery from a satellite constellation is bandwidth-bound. I work on distributing computation — sparse coding, and reinforcement-learning-driven scheduling — across satellites so that space situational awareness data can be compressed and transmitted efficiently from orbit.
Related: Distributed On-Orbit Sparse Coding (INFOCOM 2025) , RL-Driven On-Orbit Sparse Coding (IEEE TMC 2025)